M65881AFP
REJ03F0004-0100Z
Rev.1.00
Digital Amplifier Processor of S-Master* Technology
2003.05.08
DESCRIPTION
The M65881AFP is a S-Master technique processor for digital amplifier enable to convert from multi liner-PCM digital input signal
to high precise switching-pulse digital output without analog processing.
The M65881AFP has built-in 24bit sampling rate converter and digital-gain-controller.
The M65881AFP enables to realize high precise ( X`tal oscillation accuracy.) full digital amplifier systems combining with power
driver IC.
FEATURES
•Built-in 24bit Sampling Rate Converter.
Input Signal Sampling Rate from 32KHz to 192KHz (24bit Maximum).
4 kinds of Digital Input Format.
•Built-in L/R Independent Digital Gain Control.
•Built-in Soft Mute Function with Exponential Approximate-Curve.
•Correspondence to Output for Headphone.
OUTLINE : 42P2R
0.8mm pitch 42pin SSOP
MAIN SPECIFICATION
•Master Clock
Primary Clock: 256Fsi/512Fsi Secondary Clock: 1024Fso/512Fso
•Input Signal Format:
MSB First Right Justified(16/20/24bit),MSB First Left Justified(24bit)
LSB First Right Justified(24bit),I2S(24bit)
•Input Signal Sampling Rate from 32kHz to 192kHz.
•Gain Control Function:
+30dB~-¥ dB (0.1dB Step until -96dB, -138dB Minimum)
•Third Order DS (16Fso:6bit/5bit,32Fso:5bit)
APPLICATION
DVD Receiver, AV Amplifier
RECOMMENDED OPERATING CONDITIONS
Logic Block:1.8V±10%,PWM Buffer Block :3.3V±10%
SYSTEM BLOCK DIAGRAM)
M65881AFP
Stream
LC
Power
Filter
Driver
24bit
Level
Control
LRCK
Sampling
Rate
Converter
DS
PWM
BCK
DATA
+30dB
to
-¥
32kHz
to
192kHz
Stream
Power
Driver
LC
Filter
Output
for Headphone
Clock
Clock
256fsi/512fsi
MCU I/F
1024fso/512fso
* "S-Master" is the digital amplifier technology developed by Sony Corporation. "S-Master" is a trademark of Sony Corporation.
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M65881AFP
BLOCK DIAGRAM
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M65881AFP
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Condition
Min.
-0.3
Typ.
–
Max
3.8
Unit
V
3.3V system (XVdd, XOVdd, PWM Output
for Power Stage & Headphone)
PWMVdd
Supply Voltage
BFVdd
DVdd
Vi
3.3V system
1.8V system
-0.3
-0.3
-0.3
–
–
3.8
2.5
V
V
Input Voltage Range
Power Dissipation
–
Vdd+0.3
V
Pd
Ta=75ºC
350
–
mW
ºC
Storage Temperature
Tstg
-40
125
RECOMMENDED OPERATING CONDITIONS
Min.
3.0
Typ.
3.3
Max
3.6
Parameter
Symbol
Condition
Unit
V
3.3V system (XVdd, XOVdd, PWM Output
for Power Stage & Headphone)
3.3V system
PWMVdd
Supply Voltage
3.0
3.3
3.6
BFVdd
V
1.6
-20
16
8
1.8
–
2.0
75
DVdd
Ta
1.8V system
V
ºC
Operating Temperature
Operating Frequency
–
–
52.5
25
XfsoIN
XfsiIN
MHz
MHz
ELECTRICAL CHARACTERISTICS
(Ta=25ºC,PWMVdd=3.3V, DVdd=1.8V : Unless otherwise specified.)
Parameter
Symbol
VIH3
Conditions
Unit
V
Min.
Typ.
M
"H" Level Input Voltage
"L" Level Input Voltage
Input Leek Current
BFVdd=3.0 to 3.6V
BFVdd=3.0 to 3.6V
0.75Vdd
–
–
–
–
VIH3
V
–
–
0.25Vdd
10
Ileak
µA
XfsoOUT
SFLAG
"H" Level Output
Voltage
BFVdd=3.0 to 3.6V
IOH3=-4.0mA (SFLAG,FsoCKO)
FsoCKO
IOH3=-2.0mA (XfsoOUT,OUTL1,2,OUTR1,2)
IOH3=-1.0mA (HPOUTL1,2,HPOUTR1,2)
VOH3
Vdd-0.5
–
–
OUTL1,2
OUTR1,2
HPOUTL1,2
HPOUTR1,2
XfsoOUT
SFLAG
V
"L" Level Output
Voltage
BFVdd=3.0 to 3.6V
IOL3=4.0mA (SFLAG, FsoCKO)
IOL3=2.0mA (XfsoOUT,OUTL1,2,OUTR1,2)
IOL3=1.0mA (HPOUTL1,2,HPOUTR1,2)
FsoCKO
VOL3
–
–
0.5
OUTL1,2
OUTR1,2
HPOUTL1,2
HPOUTR1,2
V
3.5
2.5
Idd2
Idd3
1.8V system (DVdd)
mA
mA
–
–
–
–
Power Supply Current
3.3V system (PWMVdd, BFVdd)
OUTxx, HPOUTxx="OPEN"
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M65881AFP
CHARACTERISTICS EVALUATION CIRCUIT
+
-
-
+
-
+
2
OUTL1
GND
+
-
4
OUTL2
+
-
-
+
+
-
39
41
OUTR2
OUTR1
16
LRCK
BCK 17
18
GND
+
-
DATA
M65881AFP
33
-
HPOUTL1
HPOUTL2
+
31
Power Supply
GND
27
29
HPOUTR2
HPOUTR1
+
-
Reference characteristic
Conditions
• Input :1kHz 0dB Full scale sine wave
• FS :Primary clock 44.1kHz, Secondary clock 48kHz
• PWM Output format 1 • AC dithering E • DC dithering : 0.1%
• Gain data setting : (Index) 10000b/ (Mantissa) 10000000b
S/N
THD+N
S/N
102dB(typ)
0.002%(typ)
100dB(typ)
Output for
Power Stage
Output for
Headphone
THD+N
0.006%(typ) • THD+N: Filter 20kHz LPF
S/N: Filter 22kHz LPF + JIS-A
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M65881AFP
PIN DESCRIPTION
Output
Current
on 3.3V
Pin No.
Name
I/O
Description
Power Supply for Lch PWM Power Stage (3.3V)
Lch PWM1 Output for Power Stage
GND for Lch PWM Power Stage
Signal Level
–
–
1
VddL
OUTL1
VssL
3.3V
–
2
O
O
O
–
3
Lch PWM2 Output for Power Stage
Power Supply for Secondary Master Clock Buffer ( 3.3V )
Buffered Output of Secondary Master Clock (1024/512fso)
GND for Secondary Master Clock Buffer
Power Supply for Digital Block (1.8V)
GND for Digital Block
3.3V
–
4
OUTL2
XOVdd
XfsoOUT
XOVss
DVdd
–
2mA
–
5
3.3V
6
7
–
–
–
–
8
–
9
DVss
–
Secondary Master Clock Selector "L":1024fso, "H":512fso
Serial Control • Data Input
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
MCKSEL
SCDT
I
I
I
I
I
I
I
I
I
–
–
Serial Control • Shift Clock Input
SCSHIFT
SCLATCH
NSPMUTE
INIT
–
Serial Control • Latch Signal Input
–
PWM Duty 50% Mute ( "L": Active )
Initialize Input ( Power Supply Reset ) ; "L" : Reset, "H" : Release
LRCK Input (PCM Signal )
–
–
LRCK
–
BCK Input ( PCM Signal )
BCK
–
DATA Input ( PCM Signal )
3.3V
DATA
–
–
–
Power Supply for Input/Output 3.3V Buffer
GND for Input/Output 3.3V Buffer
BFVdd
BFVss
–
–
Primary Master Clock Input (256fsi/512fsi )
Secondary Fso Clock Output
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
XfsiIN
I
O
I
4mA
–
FsoCKO
FsoI
Secondary Fso Clock Input
Asynchronous Flag ( H: Active )
4mA
–
SFLAG
TEST2
TEST1
HPOUTR2
HPVssR
HPOUTR1
HPVddR
HPOUTL2
HPVssL
HPOUTL1
HPVddL
XVss
O
I
Test2 must be connected to GND
–
–
–
–
–
Test1 must be connected to GND
I
Rch PWM2 Output for Headphone
GND for Rch Headphone
3.3V
–
O
Rch PWM1 Output for Headphone
Power Supply for Rch Headphone ( 3.3V )
Lch PWM2 Output for Headphone
3.3V
–
O
O
O
3.3V
–
GND for Lch Headphone
Lch PWM1 Output for Headphone
3.3V
–
Power Supply for Lch Headphone ( 3.3V )
GND for Secondary Master Clock Input Buffer
Secondary Master Clock Input (1024fso/512fso)
Power Supply for Secondary Master Clock Buffer ( 3.3V )
GND for PWM Power Stage
–
–
–
–
–
3.3V
–
XfsoIN
XVdd
I
–
VssLR
Rch PWM 2 Output for Power Stage
GND for Rch PWM Power Stage
3.3V
–
OUTR2
VssR
O
O
–
–
Rch PWM 1 Output for Power Stage
Power Supply for Rch PWM Power Stage ( 3.3V)
3.3V
–
OUTR1
VddR
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M65881AFP
EXPLANATION OF OPERATION
1. DATA,BCK,LRCK
DATA,BCK, and LRCK are input pins for Digital Audio Signal of CD, MD, DVD etc..
Input formats are supported by 4 ways, and are set by Serial Control, "System1 Mode, bit3 and bit4".
Input data length are selectable in a case of "MSB First Right Justified"
(Serial Control "System1 Mode,bit5 and bit6").
•Input formats are shown in following figures.
1/fsi, 1/2fsi, 1/4fsi
MSB first left justified
Left
Right
(24bit)
LRCK
BCK
MSB
LSB
MSB
LSB
DATA
(24bit)
24cycle
24cycle
1/fsi, 1/2fsi, 1/4fsi
MSB first right justified
(16bit, 20bit, 24bit)
Right
Left
LRCK
BCK
LSB
MSB
LSB
LSB
LSB
MSB
DATA
(16bit)
16 cycle
20 cycle
16 cycle
20 cycle
MSB
MSB
LSB
LSB
DATA
(20bit)
MSB
MSB
DATA
(24bit)
24 cycle
24 cycle
1/fsi, 1/2fsi, 1/4fsi
LSB first right justified
(24bit)
Left
Right
LRCK
BCK
LSB
LSB
MSB
MSB
DATA
(24bit)
24 cycle
24 cycle
1/fsi, 1/2fsi, 1/4fsi
I2S(24bit)
Left
Right
LRCK
BCK
1 BCK
MSB
1 BCK
MSB
LSB
LSB
DATA
(24bit)
24 cycle
24 cycle
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M65881AFP
2. SCDT, SCSHIFT, SCLATCH
SCDT, SCSHIFT and SCLATCH are input pins for setting M65881AFP's operation.
Input format of SCDT, SCSHIFT and SCLATCH is shown below.
Input Format of SCDT, SCSHIFT and SCLATCH
bit1
24
20
15
10
5
1
SCDT
SCSHIFT
SCLATCH
• Mode Setting
The operating mode are classified in four and assigned by bit1 and bit2. These four functions are shown below.
( bit1 and bit2 )= ( "L" and "L" ) Gain control mode: Gain control.
( bit1 and bit2 ) = ( "L "and "H" ) System1 Mode: Primary block initialization, etc.
( bit1 and bit2 )= ( H and "L" ) System2 Mode : Secondary block initialization, etc.
( bit1 and bit2 ) = ("H" and "H" ) Test mode ( setting prohibition )
Refer to Page13 about these four setting in detail.
3. MCKSEL, XfsoIN, XfsoOUT
XfsoIN pin is secondary master clock input.
MCKSEL
XfsoIN
1024fso
512fso
The setting of MCKSEL pin selects secondary master clock.
XfsoOUT pin is buffered-output from XfsoIN pin's input clock.
"L"
"H"
4. XfsiIN
XfsiIN pin is primary master clock input.
The frequency of primary master clock must be selected by serial control “System2 mode :bit3 (IMCKSEL)”
bit3 (IMCKSEL)
XfsiIN
512fsi
256fsi
"H"
"L"
The relations between input signal sampling rate and master clock frequency.
Primary clock
512fsi/256fsi[Hz] 1024fso/512fso[Hz]
Secondary clock
Input sampling rate
1fsi : 32k / 2fsi : 64k / 4fsi : 128k
1fsi : 44.1k / 2fsi : 88.2k / 4fsi : 176.4k
1fsi :48k / 2fsi : 96k / 4fsi : 192k
16.384M/8.192M
22.579M/11.290M
24.576M/12.288M 49.152M/24.576M
32.768M/16.384M
|
/
|
Input signal and primary clock are related to synchronization. The primary clock frequency are
512 or 256 times as much as the input signal fsi ( 32k, 44.1k and 48k.)
The primary and secondary clock are related to independence. ( asynchronization )
At 1024fso setting, secondary clock= frequency range from 32.768MHz to 49.152MHz.
At 512fso setting, secondary clock = frequency range from 16.384MHz to 24.576MHz.
*Primary clock
This clock means input side clock system of sampling rate converter.
*Secondary clock
This clock means output side clock system of sampling rate converter.
This clock makes to operate after sampling rate converter block.
(Gain Control Block and PWM Block, etc.)
*“fsi” and “fso” are defined as following stated in this specification.
fsi : Primary sampling frequency
fso : Secondary sampling frequency
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M65881AFP
5. FsoCKO
FsoCKO is clock output pin of 1fso frequency. The output is divided-clock of XfsoIN, and frequency
is free-running at power on. FsoCKO pin's clock is utilized for a synchronization in case that
have used plural M65881AFP, take a synchronization between M65881AFP and other external
devices.
Refer to the following Chapter 6. in detail.
6. FsoI, SFLAG
M65881AFP synchronizes in clock input from the external source devices. So it makes synchronized
operation between source devices or another M65881AFP ( in case of Multi channel Operation ).
The primary side operation ( input side of sampling rate converter ) are synchronized in LRCK, and the
secondary side operation ( output side of sampling rate converter ) are synchronized in FsoI.
M65881AFP detects rise edge of these synchronized clock in normal operation, and the M65881AFP
does operation of resynchronization in case that the cycle has changed.
In addition, the M65881AFP re-synchronizes for a synchronized clock, in case that M65881AFP detects
SYNC flag (Serial Control, System2 Mode,bit6) rise edge, too.
While re-synchronizing, SFLAG pin outputs "H" and data is muted inside.
In case of using Multiplex ( for multi channel application) and Single ( for 2ch application ), detail
explanation is shown below.
Multiplex use
Primary side: Synchronize with LRCK. All ICs synchronize with an source device by connecting
common LRCK.
Secondary side: Synchronize with FsoCKO of Master IC. One of M65881AFP becomes a master IC,
and the synchronization between ICs is carried out by FsoCKO of Master IC.
FsoCKO pin outputted from this master IC is entered each Fsol pins of master
and slave ICs.
ASYNCEN2=enable
Master
LRCK
LRCK (Primary side)
FsoCKO(Secondary side)
Fsol
Slave
LRCK
Fsol
Slave
LRCK
Fsol
Multiplex use (6ch)
Single use
Primary side: Synchronize with LRCK. Therefore M65881AFP synchronizes with source devices.
Secondary side: There is no need for external devices and other ICs to synchronize,
therefore FsoCKO is connected to FsoI, In other way,
By setting secondary side asynchronous detection to “disable” with
“ASYNCEN2” flag (Serial Control, System2 mode,bit8),
FsoI can also be considered as fixation.
ASYNCEN2=enable
ASYNCEN2=disable
LRCK (Primary)
LRCK (Primary)
FsoCKO
LRCK
LRCK
Fsol
Fsol
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M65881AFP
7. OUTL1, OUTL2, OUTR1, OUTR2
OUTL1, OUTL2, OUTR1 and OUTR2 are pulse output modulated DS output to PWM signal.
These pins are connected to external Power Driver ICs.The PWM output can be selected
PWM Output Format 1, 2, 3 and 4 by serial control data(System1 mode, bit22,23 ).
PWM Output Form1 : General Modulation
PWM Output Form2 : Symmetrical Modulation
PWM Output Form3 : Modulation returned with time domain.
( The rise and fall edge of Lch and Rch in a term are reverse.)
PWM Output Form4: Modulation returned with time domain.
( The rise and fall edge of Lch and Rch in a term are same timing.)
In each 4 forms, the rate and bit length of PWM Output can be changed.
Moreover, an output mute function and an output pins reverse function
can be controlled by the pin setting or serial control.
Refer to pin setting of the following page about a phase of the PWM output
for Power Stage and Headphone.
The PWM output control is shown in the following table.
PWM output control
Setting Operation
Item
Operation
Output Form
Set up by the serial control system 1 mode
bit 22,23 (PWM MODE 0 and 1).
(Refer to system 1 mode(Page16) for details)
Output Form Selection
1,2,3,4
( Common setting for Power
Stage and Headphone)
Select to
Operating Rate
and Data Bit Length
Set up by the serial control system 2 mode bit16
and bit17.
( Refer to system 2 mode(Page 18) for details.)
16fso/6bit ,16fso/5bit ,32fso/5bit
from operating rate and data bit
length of DS.
PWM operation are synchronized
by this setting.
( Common setting for
Power Stage and
Headphone )
Output Muting
< Common setting for Lch / Rch >
Set NSPMUTE pin "L" or set up by serial control "
System 2 mode bit14 (NSPMUTE) "H".
Duty 50% Mute
( Common setting for
Power Stage and
Headphone )
( Selectable common and
independent setting for Lch/ Rch.)
< Independent Setting for Lch / Rch >
Set up by serial control Gain Control Mode bit9,10
(NSPMUTEL,NSPMUTER) "H" .
( Refer to Page 11,18 and 13 for details)
Set up by serial control system2 mode
bit15(PGMUTE) "H".
Absolute Zero Mute
(See system2 mode(Page 18) )
Reverse on Lch and Rch of
output pins (Common setting for
Power Stage and Headphone)
Reverse Output
Pins Function
Set up by serial control system2 mode bit9
(CHSEL).
Reverse for R1 and R2 of
output pins.
( Only enable for Power Stage.)
Set up by serial control system2 mode bit12
(CHRSEL).
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M65881AFP
8. HPOUTL1, HPOUTL2, HPOUTR1, HPOUTR2
HPOUTL1, HPOUTL2, HPOUTR1 and HPOUTR2 are output pins for Headphone output.
PWM output modulated DS output data to pulse width.
The Phase of PWM Output for Power Stage and PWM Output for Headphone.
The output for Headphone is reverse phase as output for Power.
Moreover, it is possible to set L1 and R1 output same phase by serial control the system 1 mode,
bit24= "H"( PWMHP ).
In addition, NSPMUTE, PGMUTE and CHSEL are set in common PWM for Power
and PWM for Headphone, and as for CHRSEL flag is set as a function of only PWM for Power.
( Refer to previous page "Table of PWM control" for details ).
9. NSPMUTE
NSPMUTE pin sets to PWM Output to Duty 50% Mute.
L: PWM Output 50% Mute
H: Mute release
10. INIT
INIT is the pin for reset to all functions of M65881AFP.
"L" level: (1) Clear of data memory, (2) Initialization of a serial control setting
(3) PWM Output Duty 50% Mute
( " L" period needs more than 5msec.)
"H" level : Usual operation.
*The rise edge from "L" to "H": Re-synchronization are operated, which is same at serial control SYNC
function. (system2 mode bit6)
11. TEST1, TEST2
TEST1 and TEST2 pins are test input for factory shipping test of M65881AFP.
TEST1 and TEST2 pins must be tied to "L" level on usual operation.
12. Power supply and GND
Power supply and GND routes have a following 6 isolated lines.
(1) VddL, VssL,VddR, VssR, VssLR
VddL, VssL,VddR, VssR and VssLR pins are Power supply and GND for PWM Output buffer.
Lch and Rch have a independent power supply and GND. Power supply must be fixed at 3.3V.
(2) HPVddL, HPVssL, HPVddR, HPVssR
HPVddL, HPVssL, HPVddR and HPVssR pins are Power supply and GND of PWM Output
buffer for Headphone. Lch and Rch have a independent power supply and GND.
Power supply must be fixed at 3.3V.
(3) XVdd, XVss
XVdd and XVss are Power supply and GND for XfsoIN clock input block.
Power supply voltage must be fixed at 3.3V.
(4) XOVdd, XOVss
XOVdd and XOVss are Power supply and GND for XfsoOUT Clock Output.
Power supply voltage must be fixed at 3.3V
(5) DVdd, DVss
DVdd, DVss are Power supply and GND for internal digital block.
Power supply voltage must be fixed at 1.8V.
(6) BFVdd, BFVss
BFVdd and BFVss are Power and GND for input/output buffer (except for PWM block
and clock buffer). Power supply voltage must be fixed at 3.3V.
page 11 of 23
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M65881AFP
13. Power sequences
System power-on sequencing
* Refer to following figure.
Power(Vddxxx, HPVddxxx,
XVdd, XOVdd, DVdd, BFVdd)
Power ON
Power OFF
Master clock
(XfsoIN,XfsiIN)
X
X
Over 5msec(*1)
INIT
Over 0sec(*2)
X
X
X
SCDT
SCSHIFT
SCLATCH
Over 2/fso(*3)
*1 After a power supply and Master clock become to stable, INIT pin must be "L" over 5msec.
*2 Data transfer is possible right after INIT release.
*3 Until SCLATCH is operated, a period over 2/fso ( fso=48kHz, over 42µsec ) is necessary after INIT release.
page 12 of 23
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M65881AFP
SERIAL CONTROL
1. Gain Control Mode
No setting bits means " Don't care".
bit
1
2
3
4
5
6
7
8
9
Flag name
MODE1
MODE2
TEST1
TEST2
NSLMT1 Output Limit 1
NSLMT2 Output Limit 2
GCONT1 Channel selection for Gain Control Block 1
GCONT2 Channel selection for Gain Control Block 2
Functional Explanation
Mode setting1
Mode setting2
Test Mode 1
Test Mode 2
H
L
INIT
–
"L" fixed
"L" fixed
"L" fixed
"L" fixed
–
L
L
L
L
L
L
L
L
–
H
L
L
L
L
H
L
L
L
L
L
L
L
Refer to Table 1-1.
L/R Independence
L/R Common
Rch
non-active
non-active
Lch
active
active
Lch Duty 50% Mute for PWM Output
NSPMUTEL
Rch Duty 50% Mute for PWM Output
10 NSPMUTER
11
12
13
14
15
16
17
18
19
20
21
22
23
24
GAIN0
GAIN1
GAIN2
GAIN3
GAIN4
GAIN5
GAIN6
GAIN7
GAIN8
GAIN9
GAIN10
GAIN11
GAIN12
Gain Data Index (MSB)
Gain Data Index
Gain Data Index
Gain Data Index
Gain Data Index (LSB)
Gain Data Mantissa (MSB)
Gain Data Mantissa
Gain Data Mantissa
Gain Data Mantissa
Gain Data Mantissa
Gain Data Mantissa
Gain Data Mantissa
Gain Data Mantissa (LSB)
•Output Limit (bit5,6: NSLMT1,2)
The M65881AFP has Over Flow Limit function which detects by input signal level and limit gain control.
The limit Value is set by Gain control Mode ( bit5,6 "NSLMT1, 2") and System2 Mode( bit17 "NSOBIT").
•Limit value setting of output for gain control and DS (bit5, 6 : NSLMT1, 2)
Table 1-1a Limit Value [ In case of 6bit mode, system2 mode bit 17( NSOBIT )="L".]
NSLMT1,2
(L, L)
Output Limit Value of gain
±0.9375
PWM Output (Limit Value from DS Block)
63 values (±31)
±0.90625
61 values (±30)
(H, L)
59 values (±29)
±0.875
(L, H)
57 values (±28)
±0.84375
(H, H)
Table 1-1b Limit Value [ In case of 5bit mode, system2 mode bit 17( NSOBIT )="H".]
NSLMT1,2
(L, L)
Output Limit Value of gain
±0.90625
PWM Output ( Limit Value from DS Block)
31 value (±15)
±0.875
31 value (±15)
(H, L)
29 value (±14)
±0.84375
(L, H)
29 value (±14)
±0.8125
(H, H)
•Channel selection for Gain Control Block (bit7,bit8: GCONT1, GCONT2)
These bit selection enable to control gain data "L/R common" or "L/R independence".
GCONT1:"L"… L/R common "H"...L/Rch independence.
GCONT2:"L"… Rch only
"H"…Lch only
Bit8 is enable only the case of " Bit7="H".
*Enable both output for Power and Headphone.
•PWM Duty 50% Mute (bit9,10:NSPMUTEL,R)
These bit set "Duty 50% fixed Mute" with Lch/Rch independence.
NSPMUTEL : "L"….Mute release, "H"…Lch Mute
NSPMUTER : "L"….Mute release, "H"…Rch Mute
* Duty 50 % Mute Operation are operated by one of the following setting.
• Gain control bit9,10 ( NSPMUTEL,R)
• NSPMUTE pin
• Serial control system2 mode ,bit 14 (NSPMUTE)
page 13 of 23
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M65881AFP
The index and Mantissa part of Gain Data (bit12-bit24 :GAIN0-GAIN12)
The gain value is set from bit12-bit24.
Index part: bit12(MSB) to bit16(LSB)
Mantissa part: bit17(MSB) to bit24(LSB)
The gain data is assigned 13bits, composed of Index part 5bits and of Mantissa part 8bits.
The range of Index parts is following statements.
Index part: 10100b(16.0) to 10000b(1.0) to 00000b(2-16
)
The range of Mantissa parts is following statements.
Mantissa part:Index part; 10100b to 00001b: Mantissa part; 11111111b to 10000000b (128 step/ Index).
Index part; 00000b:
Mantissa part; 11111111b to 00000000b (256 step).
Initial value: Index part: 10000b
Mantissa part: 10000000b
Infinity zero: Index part: 00000b
Mantissa part: 00000000b
# Notice of GAIN value setting continuously
In case of Gain value setting continuously, for example of setting L/Rch independently, please take
the interval time (pulse interval time of SCLATCH signal) more than 1/fso. For example, in the case of
fso=48kHz, please take the interval time more than 21µsec.
• The Gain Data and Audio Output Level.
Gain data consists of 13bits (Index part: 5bit, Mantissa part: 8bit ).
e.g. 10000b(1.0)/10000000b(0.5) means 0.5(0dB).
Table 1-2 Gain data and output level
Output absolute
Gain Data
Polarity
Output Level
+30.069dB
+6.021dB
maximum value
15.9375
10100/11111111 (b)
10001/10000000 (b)
1.0
10000/10000000 (b)
01111/11111111 (b)
0.5
0dB
0.498046875
-0.0340dB
+
0.5 * 2-16
00000/10000000 (b)
-96.330dB
0.00390625 * 2-16
00000/00000001 (b)
00000/00000000 (b)
-138.474dB
infinity zero
• Calculation method of Gain Value
The way to calculation of Gain value from Gain Data is following equation.
<Index data (decimal value)-16>
Mantissa Data (decimal value)
128
Gain value = 20log
[
2
dB
]
´
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M65881AFP
• Soft Mute
The Soft Mute function is executed by setting of Gain Data as 00000/00000000b
(" / " means dividing point between index part and mantissa part).
The release from Soft Mute Function must be executed by setting the gain data before soft mute.
The Soft mute Function and release from there don't have linear curve but
have characteristics of approximate exponential curve.
Output amplitude
16.0
0.5
T = xxxx/Fs (sec)
0
//
t
T
T
00000/00000000b setting
10000/10000000b setting
Characteristics of Soft Mute function
• Operating time of Soft Mute
Total steps from Maximum value(10100b/11111111b) to Minimum value(00000b/00000000b)
(128steps/1 index) ´ (20index (10100b-10000b)) +256steps = 2816steps.
The transition term of up and down depend on 2fso clock.
Therefore, in case of fso=48kHz, T=1/2fso=10.416µsec/step, transition term are following.
From Maximum value (10100b/11111111b) to Minimum value (00000b/00000000b) : 2816T=29.333msec.
From 0dB value (10000b/10000000b) to Minimum value (00000b/0000000b) : 2304T=24msec
6dB transition term (when over 00000b/10000000b (=-96dB) value ) : 128T=1.333msec.
• Soft Attenuate
Transition from older Gain Attenuation to newer Gain Attenuation always operates with Soft Mute function.
For example, in case of Gain1 > Gain3 > Gain2, transition process is shown below.
At first, GAIN1 is operated, then second, GAIN2 is operated.
In case that GAIN2 is operated faster than GAIN1 of transition completion (refer to "A" situation in figure)
GAIN1 is ignored and data approaches at GAIN2.
Further, GAIN3 is operated faster than GAIN2 of transition completion( Refer to "B" or "C" situation in figure),
GAIN2 is ignored and data approaches at GAIN3
.
Gain
1.0
A
(GAIN1)
(GAIN3)
B
0
C
(GAIN2)
-1.0
t
Soft Attenuate
page 15 of 23
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M65881AFP
2. System1 Mode
No setting bits means "Don't care".
INIT
–
–
L
L
L
L
L
L
bit
1
2
3
4
5
6
7
8
9
Flag name
MODE1
MODE2
IFMT0
IFMT1
IBIT0
IBIT1
ISF0
ISF1
EMPFS1
Function Explanation
Mode Setting 1
Mode Setting 2
H
L
"L" fixed
"H" fixed
Input Format Selection
Refer to the Table2-1 below
Refer to the Table2-2 below
Refer to the Table2-3 below
Refer to the Table2-4 below
Setting for Input Word Length
Input sampling rate selection
Fsi selection for De-emphasis Filter
L
L
10 EMPFS2
L
L
11 DF1IMUTE
12 DF2IMUTE
Zero Mute at DATA input
Zero Mute at sampling rate converter input
active
active
non-active
non-active
13
14
15
16
17
18
19
20
21
22
23
–
–
–
–
–
–
–
L
–
L
L
L
PWM:duty50%
ASYNC1MODE Asynchronous Detection Flag for Primary Side
PWMMODE0 Selection for PWM Output type
Zero Mute
Refer to the Table2-5 below
PWMMODE1
Phase of HPOUTL1/R1 based on PWM output for power
24 PWMHP
Same Phase
Reverse Phase
Table 2-1 Selection of input format
LSB First Right
Justified
MSB First Left
MSB First Right
Justified
I2S
bit
Flag Name
Justified
3
4
IFMT0
IFMT1
L
L
H
L
L
H
H
H
Table 2-2 Setting for Input Data Word Length
bit
5
6
Flag Name
IBIT0
16bit
L
L
20bit
L
H
24bit
H
L
Don't use
H
IBIT1
H
Table 2-3 Selection of Input Sampling Rate (fsi:32k to 48kHz, 2fsi:64k to 96kHz, and 4fsi:128k to 192kHz)
Don`t use
bit
7
8
Flag Name
ISF0
fsi
L
L
2fsi
H
L
4fsi
L
H
H
H
ISF1
Table 2-4 Fs selection for De-emphasis filter (De-emphasis is "ON" except for bit9=L and bit10=L)
bit
9
10
Flag Name
EMPFS1
EMPFS2
32.0k
H
H
44.1k
L
H
48.0k
H
L
OFF
L
L
Table 2-5 Selection PWM Output
bit
22
23
Flag name
PWMMODE0
PWMMODE1
PWM Output Form1 PWM Output Form2
PWM Output Form3
PWM Output Form4
L
L
H
L
L
H
H
H
•PWM Output Form2 enables to operate following conditions.
MCKSEL=L ( Secondary master clock 1024fso )
Serial Control System2 Mode; bit16 ( NSOBIT ) = "H" ( 5bit )
bit 17 ( NSSPEED )="L" (16fso )
In case of the setting and release for PWM Output Form 2,
Refer to "The NOTE1 at setting PWM output Form 2" on next page.
Selection of Input format ( bit3,4: IFMT0,1)
Refer to Table 2-1.
Input word length (bit5,6: IBIT0,1)
Refer to Table 2-2. This setting is enable the case of MSB First Right justified.
Selection of Input Sampling Rate (bit7,8 : ISF0,1)
Refer to Table 2-3
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M65881AFP
Fs Selection for De-emphasis filter (De-emphasis is "ON" except for bit9="L" and bit10="L".
(bit9, bit10) : ("L", "L") …De-emphasis Filter off
except ("L", "L") … De-emphasis Filter on (Setting fsi)
Zero Mute at DATA input ( bit11: DF1IMUTE )
"L" … Mute release
"H" … Mute
The input data from DATA pin is muted in this setting.
Zero Mute at Sampling Rate Converter Input (bit12: DF2IMUTE)
"L" … Mute release
"H" … Mute
DF2IMUTE is muting control of sampling rate converter input data.
Selection of Muting operation at primary Side Asynchronous Detection ( bit20: ASYNC1MODE)
"L" -- Duty 50% Mute of PWM output at primary side asynchronous detection.
"H"… Input Zero Mute of the gain control at primary side asynchronous detection.
( PWM Output 50% Mute doesn't be operated in this setting. )
Selection of PWM output form (bit22, 23:PWMMODE 0 and 1)
* Enable to PWM for Power and for Headphone.
• The Selection of PWM output form 1, 2, 3, and 4 Refer to Page10 for the details.
Refer to Table 2-5.
NOTE1 ; At the setting of PWM Output Form2
PWM Output Form2 enable to operate the following conditions.
bit17(NSOBIT)="H“(5bit), bit16(NSSPEED)="L“(16fso)
Only in terminal MCKSEL="L" (secondary side master clock 1024 fso)
In case of setting and release for PWM Output Form2,set both flags as follows.
•Serial Control System Mode1 bit 22,23 (PWMMODE0,1)
Mode2 bit 16 ( NSSPEED), bit17 (NSOBIT )
< In case of the setting for PWM output form2 >
(1) Set to Serial Control system2 mode ; bit17(NSOBIT)="H"
bit16(NSSPEED)="L".
(To be set as MCKSEL="L" in advance is required.)
(2) Serial control system1 mode bit22, 23(PWMMODE0,1)="H","L"
(When a setup of both (1) and (2) is completed, it changes to Form2. When (2) is set up before (1),
The term until a setup of (1) holds the last PWM Output Form.)
< In case of release for PWM output form2 >
(1) Serial control System 1 mode bit22, bit 23 (PWMMODE 0 , 1) is set as the Form to be used.
(2) Serial Control System2 mode bit17(NSOBIT),bit16(NSSPEED) is set the condition to be used.
When a setup of (1) is completed, PWM Output Form changes. When (2) is set up before (1),
a term until a setup of (1) is worked keeps the Form 2 in the state of
serial control system 2 mode bit17(NSOBIT) =H, bit16(NSSPEED) =L.
NOTE2; Selection of PWM output form
Pay attention in selection and setting above-mentioned that a noise may occur by internal clock changes
when Setting of MCKSEL pin is changed and the serial control system 2 modes
bit17 (NSOBIT) and bit16 (NSSPEED).
Since especially MCKSEL pin sets up an internal master clock, use with a fixed value recommended.
In changing MCKSEL, initialization with INIT pin and a re-setup of all the bits by serial control are needed
after changing MCKCEL.
Phase of PWM Output pins for Headphone(bit24:PWMHP)
*Enable only for PWM output for Headphone.
"L" -- The Output for Headphone L1 and R1 are reverse phase as the PWM output L1 and R1 for Power Stage.
(In this setting, the outputs for Headphone L1, L2, R1and R2 are reverse phase
as output for Power Stage.)
"H" -- The Output for Headphone L1 and R1 are same phase as the PWM output L1 and R1 for Power Stage.
(In this setting, L2 and R2 Output for Headphone are reverse phase as L2 and R2 Output for Power Stage. )
Refer to Page11.
page 17 of 23
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M65881AFP
3. System2 Mode
bit Flag name
No setting bits means "Don't care".
Functional Explanation
H
L
INIT
-
1
2
3
4
5
6
7
8
9
MODE1
MODE2
IMCKSEL
Mode settiing1
Mode setting2
Input master clock Selection
"H" fixed
"L" fixed
256fsi
-
L
-
512fsi
-
SYNC
Re-synchronization
XfsoOUT pin output "enable".
Asynchronous Detection Flag for secondary Side
L ->H : Resynchronization
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
XFsoOEN
ASYNCEN2
CHSEL
disable
enable
active
enable
disable
L/R inversion of PWM output pin
DS Block : Rch Input Phase
Sampling Rate Converter Reset
L/R inversion of PWM output pin
Zero Mute at Gain Control Input Clock
non-active
Positive phase
non-active
non-active
non-active
non-active
non-active
16fso
10 DRPOL
11 SRCRST
12 CHRSEL
13 GIMUTE
Negative phase
active
active
active
active
active
14 NSPMUTE Duty 50% Mute for PWM Output
15 PGMUTE G_MUTE of PWM Output Data
16 NSSPEED DS Block : Operating Speed
17 NSOBIT
32fso
DS Block : Setting of Output bit number
5bit (31value)
Negative phase
6bit (63 value)
Positive phase
18 DCDRPOL DS Block : Rch Phase of AC dithering
19 DCDSEL0
20 DCDSEL1
DS Block : DC dithering selection
Refer to Table 3-1
21 ACDRPOL DS Block : Rch Phase of AC dithering
22 ACDSEL0
23 ACDSEL1
24 ACDSEL2
Negative phase
Positive phase
L
L
L
DS Block : AC dithering selection
Refer to Table 3-2
Table 3-1 DC dithering selection at DS block
Flag name Non dithering DC dithering 0.1%
DC dithering 0.2%
DC dithering 0.4%
bit
19 DCDSEL0
20 DCDSEL1
L
L
H
L
L
H
H
H
Table 3-2 AC dithering selection at DS block
Flag name
Non dithering
AC dithering C
AC dithering E
bit
AC dithering A
22 ACDSEL0
23 ACDSEL1
24 ACDSEL2
don't care
L
H
L
L
L
H
L
H
H
L
L
Table 3-3 Setting of DS block operating
Flag / Pin code name
bit
16fso,6bit
16fso,5bit
16fso, 5bit
32fso, 5bit
16 NSSPEED
17 NSOBIT
L
L
L
H
X
X
H
H
L
L
H
L
Pin MCKSEL
( Secondary master clock
1024fso)
( Secondary master
clock 1024fso)
( Secondary master clock
512fso)
( Secondary master
clock 1024fso)
The selection of primary master clock ( bit3: IMCKSEL )
L … 256fsi
H … 512fsi ( "512fsi" are divided into half "256fsi" and operate as primary master clock. )
Re-synchronization (bit6: SYNC)
Refer to Page9 in details on re-synchronous operation.
Resynchronization process starts by SYNC rise edge, therefore SYNC level must be fixed to
"L" just before SYNC operation.
"Enable" of a XfsoOUT output (bit7:XfsoOEN)
"L" ...
"H"…
Clock Output (enable)
"L" fixed (disable)
page 18 of 23
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M65881AFP
Flag to " Enable " of Asynchronous Detection for secondary block ( bit8: ASYNCEN2)
ASYNCEN2 (bit8 ) controls " Enable" and " Disable" for secondary asynchronous detector.
"L“ … "disable"
"H" … "enable“
Under condition of ASYNCEN2="L", secondary side asynchronous detection is in-effective
under asynchronous position, whether Fsol Clock is not inputted, there by M65881AFP does not
operate function for instance mute operation.
Reverse Lch/Rch for PWM Output pins (bit9: CHSEL)
* Enable to control for both PWM for Power and Headphone.
"L" … As it is aligned
"H" … Reverse to pin alignment of Lch/Rch
DS Rch Input Phase (bit10: DRPOL)
"L"…. Same phase ( "Through")
"H"….This setting makes DS Rch Input in reverse, further makes PWM block input phase reverse,
ultimately phase becomes positive phase ( Input pin and Output pin's phase is same ).
Sampling rate converter block reset ( Initialize function ) (bit11: SRCRST)
"L" …..normal operation
"H" to "L" edge…..Reset ( Initialize function )
Reverse for R1 and R2 of Output pins. (bit12:CHRSEL).
“L”… As it is aligned
"H"..…Reverse to pin alignment of R1/R2.
Zero Mute of a gain control input (bit13:GIMUTE)
"L" …Mute release H… Mute
Duty 50% Mute of PWM Output (bit14: NSPMUTE)
Fixed PWM duty 50% Mute
"L"…..Mute release
"H"….. Mute
This function exists also in a pin by the same name.
(This Mute function can be set either NSPMUTE flag or NSPMUTE pin.)
Refer to Page13 about a relation with the gain control mode of serial control bit9 and bit 10
(LR independent control).
G-Mute for PWM Output Data (bit15: PGMUTE )
*Enable to PWM both PWM for Power and Headphone.
At G-MUTE flag = H , PGMUTE pin fixes each PWM Output as followings.
"L"….. Mute release
"H"….. Fixed Mute for PWM Output ( Fixed value as follows )
<PWM Output for Power >
L1,L2,R1 and R2 : "L" fixed
< PWM Output for Headphone, Serial control (system1 mode; bit24) PWMHP="L">
L1,L2,R1 and R2 : "H“ fixed
< PWM Output for Headphone, Serial control (system1 mode; bit24) PWMHP="H">
L1, R1 : "L" fixed
L2, R2 : "H" fixed
DS : operating rate (bit16 : NSSPEED)
Refer to the Table 3-3
"L" … 16fso
"H" … 32fso
*Enable only MCKSEL="L"(1024fso), NSOBIT="H“
(Except for this condition, Operating rate automatically becomes 16fso ).
DS : The setting of bit length (bit17 : NSOBIT)
Refer to the Table 3-3.
NSOBIT selects bit length for DS operation. This is set by force as 5bit at MCKSEL="H".
"L" … 6bit (63 value)
"H" … 5bit (31value)
DS : DC dithering Rch Phase (bit18:DCDRPOL)
"L"…Same phase
“H"…Reverse phase
DS : DC dithering selection (bit19, 20 : DCDSEL0,1 )
Refer to the Table 3-1.
DS :AC dithering Rch Phase (bit21 : ACDRPOL)
"L"…Same phase
“H"…Reverse phase
DS : AC dithering selection (bit22, 23, 24 : ACDSEL0, 1, 2) Refer to the Table 3-2.
page 19 of 23
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M65881AFP
AC CHARACTERISTICS
(Ta=25ºC, PWMVdd=3.3V, DVdd=1.8V)
Typ.
Max.
Unit
Item
Symbol
Condition
Min.
XfsoIN Duty Ratio
duty(XfsoIN)
40
30
40
50
50
50
60
70
60
%
%
%
512fsi
256fsi
XfsiIN Duty Ratio
duty(XfsiIN)
SCSHIFT Pulse time
SCDT Setup time
SCDT Hold time
SCLATCH Pulse Width
SCLATCH Setup Time
SCLATCH Hold time
BCK Pulse Width
DATA Setup Time
DATA Hold time
tw (SCSHIFT)
tsu (SCDT)
th (SCDT)
tw (SCLATCH)
tsu (SCLATCH)
th (SCLATCH)
tw (BCK)
160
80
80
160
160
160
35
20
20
20
20
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
tsu (DATA)
th (DATA)
tsu (LRCK)
th (LRCK)
LRCK Setup time
LRCK Hold time
AC CHARACTERISTICS TIMING CHART
(1)XfsoIN, XfsiIN Duty Ratio
twhl
twh
twl
twh
duty (XfsoIN, XfiIN) =
twhl
(2)SCSHIFT, SCDT, SCLATCH Input Timing
tw (SCSHIFT)
tw (SCSHIFT)
SCSHIFT
th (SCDT)
tsu (SCDT)
SCDT
tw (SCLATCH)
SCLATCH
tsu (SCLATCH)
th (SCLATCH)
(3)BCK, DATA, LRCK Input Timing
tw (BCK)
tw (BCK)
BCK
th (DATA)
tsu (DATA)
DATA
LRCK
th (LRCK)
tsu (LRCK)
page 20 of 23
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M65881AFP
APPLICATION EXAMPLE
Secondary Clock Select
L:1024Fso H:512Fso
MCKSEL
XFSOIN
LRCK
BCK
DATA
XfsiIN
(Primary Clock)
DSP
(Secondary Clock)
Oscillator
XFSOOUT
Secondary Clock output
FsoCKO
FsoI
Secondary synchronized clock (For Multi channel )
SCDT
SCSHIFT
SCLATCH
MCU
OUTL1
OUTL2
Power
Driver
M65881AFP
Initialize Control
Mute Control
INIT
OUTR1
OUTR2
Power
Driver
NSPMUTE
HPOUTL1
Input Mode Select1
Input Mode Select2
MODE1
MODE2
HPOUTL2
HPOUTR1
HPOUTR2
S
F
L
A
G
T
E
S
T
2
T
E
S
T
1
Low Pass Filter
/Headphone Amplifier
Flag Output
page 21 of 23
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M65881AFP
DETAILED DIAGRAM OF PACKAGE OUTLINE
2 I
1 e
L
1 L
E
E H
page 22 of 23
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M65881AFP
Sales Strategic Planning Div. Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan
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1. Renesas Technology Corporation puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may
occur with them. Trouble with semiconductors may lead to personal injury, fire or property damage.
Remember to give due consideration to safety when making your circuit designs, with appropriate measures such as (i) placement of substitutive, auxiliary circuits, (ii) use of
nonflammable material or (iii) prevention against any malfunction or mishap.
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information as a total system before making a final decision on the applicability of the information and products. Renesas Technology Corporation assumes no responsibility
for any damage, liability or other loss resulting from the information contained herein.
5. Renesas Technology Corporation semiconductors are not designed or manufactured for use in a device or system that is used under circumstances in which human life is
potentially at stake. Please contact Renesas Technology Corporation or an authorized Renesas Technology Corporation product distributor when considering the use of a
product contained herein for any specific purposes, such as apparatus or systems for transportation, vehicular, medical, aerospace, nuclear, or undersea repeater use.
6. The prior written approval of Renesas Technology Corporation is necessary to reprint or reproduce in whole or in part these materials.
7. If these products or technologies are subject to the Japanese export control restrictions, they must be exported under a license from the Japanese government and cannot
be imported into a country other than the approved destination.
Any diversion or reexport contrary to the export control laws and regulations of Japan and/or the country of destination is prohibited.
8. Please contact Renesas Technology Corporation for further details on these materials or the products contained therein.
Copyright © 2003. Renesas Technology Corporation, All rights reserved. Printed in Japan.
page 23 of 23
Rev.1.00 2003.05.08
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