TDK Modem 73M2901 5V User Manual

73M2901/5V  
Advanced Single  
Chip Modem  
®
TDK SEMICONDUCTOR CORP.  
August 2001  
FEATURES  
DESCRIPTION  
The 73M2901/5V is a single-chip modem that  
combines all the controller (DTE) and data pump  
functions necessary to implement an intelligent  
V.22bis data modem. This device is based on TDK  
Semiconductor’s implementation of the industry  
standard 8032 microcontroller core with a proprietary  
multiply and accumulate (MAC) coprocessor; Sigma-  
Delta A/D and D/A converters; and an analog front  
end. The ROM and RAM necessary to operate the  
modem are contained on the device. Additionally,  
the 73M2901/5V provides an on-chip oscillator and  
Hybrid driver.  
·
·
Low overall system chip count. True one  
chip solution for embedded systems  
Low operating power (~250mW  
@
5V,  
automatic low power standby and power  
down options available)  
Internal ROM and RAM for normal operation  
On chip optional hybrid driver  
Designed for +5 volts (+/-10%)  
Data speeds:  
·
·
·
·
V.22bis – 2400bps  
V.22, Bell 212 – 1200bps  
V.21, Bell 103 – 300bps  
The 73M2901/5V is a high performance, low  
voltage, low power, single chip modem capable of  
data transmission and reception through 2400bps.  
The 73M2901/5V is intended for embedded  
applications and battery operation. This device  
offers options for a low power conventional 5 volt  
design with optional internal hybrid and country  
specific call progress support.  
V.23 – 1200/75bps (w/ turnaround (PAVI))  
Bell 202 – 1200bps  
Bell 202 and V23 4-wire operations  
Dynamic Range: -9dBm to –43 dBm  
“AT” command set  
Host access to modem port pins via AT  
commands for custom I/O expansion  
DTMF tone generation and detection  
Call progress support with multinational  
options (FCC68, CTR21, JATE…)  
Caller ID capability  
·
·
·
·
·
·
·
·
Blacklisting capability  
Packaging: 32 pin PLCC or 44 pin TQFP  
BLOCK DIAGRAM  
ROM  
RAM  
ASRCH  
RING  
MAC  
Hybrid  
DTR  
CPU  
TxCLK  
TxD  
RxA  
TxAP  
TxAP  
AFE  
RxD  
RxCLK  
RI  
CTS  
DCD  
DSR  
RTS  
HBDEN  
USR10  
USR11  
RELAY  
Download from Www.Somanuals.com. All Manuals Search And Download.  
73M2901/5V  
Advanced Single  
Chip Modem  
RESET  
ASYNCHRONOUS AND SYNCHRONOUS SERIAL  
DATA INTERFACE  
A reset is accomplished by holding the RESET pin  
high. To ensure a proper power-on reset, the reset  
pin must be held high for a minimum of 3ms. At  
power on, the voltage at VPD, VPA, and RESET  
must come up at the same time for a proper reset.  
The serial data interface consists of the TXD and  
RXD data paths (LSBit shifted in and out first,  
respectively); and the TXCLK and RXCLK serial  
clock outputs associated with the data pins;  
CTS/RTS flow control; DCR, DSR and DTR. In  
synchronous mode, the data is passed at the bit rate  
(tolerance is +1%, -2.5%).  
PIN DESCRIPTIONS  
POWER PIN DESCRIPTION  
PIN NAME  
VPA  
32-PIN 44-PIN TYPE DESCRIPTION  
15  
21  
16  
22  
I
I
I
Positive analog voltage (+ Analog Supply)  
VNA  
Negative analog voltage. (Analog Ground)  
Positive digital voltage (+ Digital Supply)  
VPD  
6, 25,  
29  
2,12,  
27, 33  
VND  
5, 22, 11, 24,  
26 44, 28  
I
Negative digital voltage. (Digital Ground)  
ANALOG INTERFACE PIN DESCRIPTION  
PIN NAME  
RXA  
32-PIN 44-PIN TYPE DESCRIPTION  
20  
16  
17  
14  
21  
17  
18  
15  
I
Receive analog data  
Transmit Analog -  
TXAN  
O
O
I
TXAP  
Transmit Analog +  
HBDEN  
2w/4w hybrid driver enable pin  
0 = Driver configured for 50kWor greater load (Tie to VND)  
1 = Driver configured for driving line-coupling transformer (Tie to  
VPD)  
VBG  
19  
18  
20  
19  
O
O
Analog Band Gap voltage reference pin (0.1mF to VNA)  
VREF  
Analog reference voltage pin (0.1mF to VNA)  
EXTERNAL INTERRUPTS PIN DESCRIPTIONS  
PIN NAME  
RING  
32-PIN 44-PIN TYPE DESCRIPTION  
2
1
39  
38  
37  
I
I
I
External interrupt – Line interface ring detection circuitry input  
External interrupt – Autobaud detection, connected to TXD  
External interrupt – DTE DTR signal input  
ASRCH  
DTR  
32  
3
Download from Www.Somanuals.com. All Manuals Search And Download.  
73M2901/5V  
Advanced Single  
Chip Modem  
PIN DESCRIPTIONS (continued)  
OSCILLATOR PIN DESCRIPTION  
PIN NAME  
32-PIN 44-PIN TYPE DESCRIPTION  
OSCIN  
24  
26  
I
Crystal input for internal oscillator, also input for external  
source.  
OSCOUT  
23  
25  
O
Crystal oscillator output.  
DIGITAL INTERFACE PIN DESCRIPTION  
PIN NAME  
RESET  
RXCLK  
RXD  
32-PIN 44-PIN TYPE DESCRIPTION  
13  
31  
30  
28  
27  
12  
9
I
O
O
O
I
Resets 73M2901/5V  
36  
35  
31  
30  
8
Receive Data Synchronous Clock  
Serial output to DTE.  
TXCLK  
TXD  
Transmit Data Synchronous Clock  
Serial data input from DTE.  
USR10  
I/O  
This pin can optionally be configured as an active low detect  
pin. This can be used to implement such functions as “parallel-  
pick-up”, “line-in-use”, or “seize” detect.  
USR11  
11  
7
I/O  
Programmable I/O port. This pin can ooptionnaly be used to  
control an external switch for Caller ID decoding operations.  
RTS (USR12)  
CTS (USR13)  
DSR (USR14)  
DCD (USR15)  
RI (USR16)  
10  
9
6
5
I
Request to Send  
Clear to Send  
O
O
O
O
O
8
4
Data Set Ready  
Data Carrier Detect  
Ring Indicator  
7
3
4
43  
40  
RELAY (USR17)  
3
Relay driver output  
4
Download from Www.Somanuals.com. All Manuals Search And Download.  
73M2901/5V  
Advanced Single  
Chip Modem  
ELECTRICAL SPECIFICATIONS  
ABSOLUTE MAXIMUM RATINGS  
Operation above maximum rating may permanently damage the device.  
PARAMETER  
RATING  
-0.5V to +7.0V  
Supply Voltage  
Pin Input Voltage  
Storage Temperature  
-0.5V to VPD + 0.5V  
-55ºC to 150°C  
RECOMMENDED OPERATING CONDITIONS  
PARAMETER  
RATING  
Supply Voltage  
+5.0V (+/-10%)  
11.0592MHz +/- 50ppm  
-40C to +85°C  
Oscillator Frequency  
Operating Temperature  
TRANSMITTER  
PARAMETER  
CONDITIONS  
MIN  
-5  
NOM  
-3.5  
MAX  
-2  
UNIT  
dB  
ITU Guard Tone Power  
550Hz (relative to carrier)  
1800Hz (relative to carrier)  
1300Hz  
-8  
-6.5  
-5  
dB  
Calling Tone  
-11  
-11  
-8.0  
-10  
-9.0  
-9.0  
-6.0  
-8.0  
dBm01  
dBm01  
dBm01  
Answer Tone Power  
DTMF Transmit Power  
2225/2100Hz  
High band tones  
Low band tones  
1
dBm0 refers to the TDK recommended DAA ( 8dB loss from Transmit pins to the line and 5dB loss from the line to the Receive pin). Results  
may vary depending on selected DAA. 0dBm = 0.775Vrms. dBm = 10log {Vrms2/[(1mW)(600O)]}  
5
Download from Www.Somanuals.com. All Manuals Search And Download.  
73M2901/5V  
Advanced Single  
Chip Modem  
ELECTRICAL SPECIFICATIONS (continued)  
MAXIMUM TRANSMIT LEVELS  
Vref=2.25V; VPA=5.0V  
Transmit type  
Maximum differential line  
level (dBm0)  
QAM  
-5.5  
-3.4  
-1.2  
-6.0  
-8.0  
-3.9  
DPSK  
FSK  
DTMF (high tone)  
DTMF (low tone)  
DTMF (total)  
Vref=1.25V; VPA=5.0V  
QAM  
-9.6  
-7.4  
-5.3  
-7.9  
-9.8  
-5.7  
DPSK  
FSK  
DTMF (high tone)  
DTMF (low tone)  
DTMF (total)  
Note: The recommended DAA (see the TDK 73M2901 Reference Manual) will result in approximately 8dB loss from the transmit pins to the  
phone line. This includes the loss through the line matching impedance (475W resistor), transformer, and solid state off-hook relay.  
6
Download from Www.Somanuals.com. All Manuals Search And Download.  
73M2901/5V  
Advanced Single  
Chip Modem  
ELECTRICAL SPECIFICATIONS (continued)  
TRANSMITTER  
PARAMETER  
CONDITIONS  
MIN  
-0.3  
4.8  
NOM  
0
MAX  
0.3  
UNIT  
dB  
Gain Adjust  
Tolerance  
By step  
Transmit Gain Boost SFR 96h bit 1 (TXBOOST) = 1  
5.1  
5.4  
dB  
Total Harmonic  
Distortion (THD)  
1Khz sine wave at output (TXAP-TXAN)  
1.5Vpk(2.7dBm) for Vref=1.25V  
2.4Vpk (6.8dBm) for Vref=2.25V  
THD = 2nd and 3rd harmonic.  
-50  
-33  
dB  
dB  
Intermod Distortion  
At output (TXAP-TXAN)  
1.0kHz, 1.2 kHz sine waves summed  
2.0Vpk for Vref=1.25V  
each unwanted  
frequency  
component  
2.4Vpk for Vref=2.25V  
Refer to CTR21 specification for complete  
description of requirements  
sum of  
unwanted  
frequency  
dB  
below  
low  
-20  
components in  
pass band  
tone  
Power Supply  
-30 dBm signal at VPA  
Rejection Ratio  
300Hz – 30kHz. Measured TXAP to TXAN.  
30.0  
dB  
RECEIVER  
PARAMETER  
Carrier Detect On  
Carrier Detect Off  
CONDITIONS  
Tip and Ring  
Tip and Ring  
MIN  
-43.0  
-48.0  
NOM  
MAX  
UNIT  
dBm01  
dBm01  
dB  
Carrier Detect Hysteresis  
Receive Level  
Tip and Ring  
Tip and Ring  
0.2kHz - 4.0kHz  
2.0  
-70  
-43.0  
-9.0  
-65  
dBm01  
Idle Channel Noise  
dB  
7
Download from Www.Somanuals.com. All Manuals Search And Download.  
73M2901/5V  
Advanced Single  
Chip Modem  
ELECTRICAL SPECIFICATIONS (continued)  
RECEIVER (continued)  
PARAMETER  
TEST CONDITION  
RXA  
MIN  
150  
2.7  
NOM  
---  
MAX  
---  
UNITS  
kW  
Input Impedance  
Receive Gain  
Boost  
SFR 96h bit 2 (Rxgain) = 1  
3.0  
3.3  
dB  
Maximum Input  
Level at RXA  
VREF=1.25V  
0.587  
1.069  
-50  
Vpk  
Vpk  
dB  
VREF=2.25V  
Total Harmonic  
Distortion (THD)  
1kHz 450mV-pk on RXA  
THD = 2nd and 3rd harmonic.  
-70  
DC CHARACTERISTICS  
PARAMETER  
SYMBOL  
CONDITION  
MIN  
NOM  
MAX  
UNIT  
VIL  
-0.5  
0.2Vcc  
V
Input Low Voltage  
(Except OSCIN,RESET)  
VIL  
VIH  
-0.5  
0.2 Vcc  
V
V
Input Low Voltage  
OSCIN,RESET  
0.5 Vcc  
0.7 Vcc  
Vcc + 0.5  
Vcc + 0.5  
0.45  
Input High Voltage  
(Except OSCIN,RESET)  
VIH  
V
Input High Voltage  
OSCIN,RESET  
VOL  
IOL = 4mA  
IOL = 3.0mA  
IOH = -4mA  
V
Output Low Voltage  
(Except OSCOUT)  
VOLOSC  
VOH  
VOHOSC  
IIH  
0.7  
V
Output Low Voltage  
OSCOUT  
Vcc – 0.45  
Vcc – 0.9  
V
Output High Voltage  
(Except OSCOUT)  
IOH =-3.0mA  
Vss < Vin < Vcc  
Vss < Vin < Vcc  
V
Output High Voltage  
OSCOUT  
1
mA  
mA  
Input Leakage Current  
(Except OSCIN)  
IIH  
1
30  
Input Leakage Current  
OSCIN  
8
Download from Www.Somanuals.com. All Manuals Search And Download.  
73M2901/5V  
Advanced Single  
Chip Modem  
ELECTRICAL SPECIFICATIONS (continued)  
DC CHARACTERISTICS  
PARAMETER  
5V Operations  
SYMBOL  
CONDITION  
MIN  
NOM  
MAX  
UNIT  
Maximum Power Supply  
Normal Operation @ 5V  
HBDEN pulled high  
IDD1  
30pF/pin  
51  
62  
mA  
Maximum Power Supply  
Normal Operation @ 5V  
HBDEN pulled low  
IDD1  
30pF/pin  
35  
43  
mA  
Maximum Digital Power  
Supply @ 5V  
IDDd  
30pF/pin  
30pF/pin  
31  
20  
37  
25  
mA  
mA  
Maximum Analog Power  
supply @ 5V  
IDDah1  
HBDEN pulled high  
Maximum Analog Power  
Supply @ 5V  
IDDah0  
30pF/pin  
4
6
mA  
HBDEN pulled low  
Maximum Power Supply  
Idle Mode @ 5V  
IDD2  
IDD3  
30pF/pin  
30pF/pin  
11  
4
15  
10  
mA  
Maximum Power Supply  
Power Down Mode @ 5V  
mA  
DC CHARACTERISTICS  
PARAMETER  
CONDITION  
Vcc=5V  
MIN  
1.19  
1.19  
2.14  
3.8  
NOM  
MAX  
UNIT  
V
Vbg  
1.25  
1.25  
2.25  
4.2  
1.31  
1.31  
2.36  
4.5  
Vref  
Vcc=5V – no boost  
V
Vref  
Vcc=5V + internal boost  
V
5 Volts detection threshold  
V
9
Download from Www.Somanuals.com. All Manuals Search And Download.  
73M2901/5V  
Advanced Single  
Chip Modem  
FIRMWARE DESCRIPTION2  
FIRMWARE FEATURES  
An “AT” command interpreter provides command  
and configuration of the 73M2901/5V. This provides  
the user a uniform interface to control the modem in  
embedded applications.  
·
·
·
“AT” command set  
Supports data standards through V.22bis  
Provides DAA control firmware (e.g. ring detect,  
hook control, line in use detection support)  
Multinational Call progress support (FCC68,  
CTR21, JATE…)  
·
·
The signal processing is performed by obtaining  
data from and providing data to the integrated A/D  
converter. A MAC hardware processor is provided  
for computation.  
Caller ID capability  
FSK demodulation (V23 or Bell202)  
Intra 1st/2nd ring CID data operations  
Post Line reversal CID data operations  
Interfaces with standard V.24/EIA-232 (3-5 volt  
inverted level) serial interface using the built in  
serial port and firmware control of port pins  
Provides tone generation and detection, four  
imprecise and four precise call progress detect  
filters  
To provide maximum flexibility, the system host  
processor can access the internal RAM and Control  
Register space in the modem. This will allow the  
OEM user to modify parameters such as filter  
response, transmit levels through the AT command  
·
·
set using proprietary commands.  
The host  
processor can also access the modem I/O port pins,  
providing extended I/O capability.  
·
·
Host access to program RAM provided  
User access to modem functions  
FIRMWARE REQUIREMENTS  
The modem always powers up in the idle (on hook)  
mode. “AT” commands are issued via the serial  
interface from the host. All modem configuration  
commands are received in this manner. The data  
modem firmware is contained in an internal ROM.  
The firmware will automatically enter a power saving  
idle mode if the modem is on hook and there are no  
incoming host commands.  
The modem  
automatically powers up upon receiving the next  
command. This power up sequence occurs without  
delay to the host. This function, while saving power,  
is transparent to the host processor and can be  
disabled by the host via an “AT” command. The  
host can also program the modem to power down  
via external pin (DTR) or via a firmware command.  
2
For a detailed description of the firmware consult the TDK  
73M2901 User’s Manual.  
10  
Download from Www.Somanuals.com. All Manuals Search And Download.  
73M2901/5V  
Advanced Single  
Chip Modem  
transformer directly (with the required impedance  
matching series resistor). Used in this configuration,  
there is loss associated in both the receive path and  
transmit path.  
DESIGN CONSIDERATIONS  
TDK Semiconductor’s single chip modem solutions  
include all the basic modem functions. This makes  
these devices adaptable to a variety of applications.  
The line interface circuit shown on the following  
page represents the basic components and values3  
for interfacing the TDK 73M2901/5V analog pins to  
the telephone line.  
Unlike digital logic circuitry, modem designs must  
contend with precise frequency tolerances and verify  
low level analog signals, to ensure acceptable  
performance. Using good analog circuit design  
practices will generally result in a sound design.  
The crystal oscillator should be held to a 50ppm  
MODEM PERFORMANCE  
CHARACTERISTICS  
tolerance.  
Following  
are  
additional  
recommendations that should be taken into  
consideration when starting new designs.  
The curves presented in this data sheet define  
modem IC performance under a variety of line  
conditions typical of those encountered over public  
service telephone lines.  
LAYOUT CONSIDERATIONS  
Good analog/digital design rules must be used to  
control system noise in order to obtain high  
performance in modem designs. The more digital  
circuitry present in the application, the more  
attention to noise control is needed.  
BER VS. SNR  
This test represents the ability of the modem to  
operate over noisy lines with a minimum amount of  
data transfer errors. Since some noise is generated  
in the best dial up lines, the modem must operate  
with the lowest signal to noise ratio (SNR) possible.  
Better modem performance is indicated by test  
curves that are closest to the BER axis. A narrow  
spread between curves representing the four line  
High speed, digital devices should be locally  
bypassed, and the telephone line interface and the  
modem should be located next to each other near  
where the telephone line connection is accessed. It  
is recommended that power supplies and ground  
traces should be routed separately to the analog and  
digital portions on the board. Digital signals should  
not be routed near low level analog or high  
impedance analog traces.  
parameters  
indicates  
minimal  
variation  
in  
performance while operating over a range of  
aberrant operating conditions. Typically a DPSK  
modem will exhibit better BER performance test  
curves receiving in the low band (answer mode)  
than in the high band (originate mode).  
The 73M2901/5V should be considered a high  
performance analog device. A 10mF electrolytic  
capacitor in parallel with a 0.1mF Ceramic capacitor  
should be placed between VPD and VND as well as  
between VPA and VNA. A 0.1mF ceramic capacitor  
should be placed between VREF and VNA as well  
as VBG and VNA. Use of ground planes and large  
traces on power is recommended.  
BER VS. RECEIVE LEVEL  
This test measures the dynamic range of the  
modem. Because signal levels vary widely over dial  
up lines, the widest possible dynamic range is  
desirable. The SNR is held constant at the indicated  
values as the Receive level is lowered from very a  
very high to a very low signal level. The width of the  
bowl of these curves, taken at the BER point is the  
measure of the dynamic range.  
The 73M2901/5V is the first of a series of parts with  
different and/or additional features. In order to insure  
full lay out compatibility for all the series, it is  
recommended to implement three additional  
resistors in the schematics as shown in the  
recommended schematics arrangement (R11, R12  
and R13).  
TELEPHONE LINE INTERFACE  
Transmit levels at the line are dependent on the  
interface used between the pins and the line. In  
order to save having to provide external op-amps to  
drive the line coupling transformer, the analog  
outputs (TXAP and TXAN) have the capability to be  
used as the hybrid drivers for connecting to the  
3
TDK73M2901 Demo boards use the line interface shown on the  
following page. Other designs may have different requirements  
and thus will require different component values or a different  
configuration. With the shown configuration, there is  
approximately an 8dB loss in the transmit path, and approximately  
a 5dB loss in the receive path.  
11  
Download from Www.Somanuals.com. All Manuals Search And Download.  
73M2901/5V  
Advanced Single  
Chip Modem  
RXA  
R3  
R4  
21K  
5.1K  
R1  
T1  
TXAP  
TXAN  
475  
C1  
0.033m  
Telephone  
Line  
Midcom 671-8005  
Recommended Line Interface  
VCC  
C1  
GND  
+
C2  
Y1  
27PF  
C3  
10uF  
11.0592 MHZ  
GND  
R1  
33PF  
10K  
VCC  
GND  
TTL V24  
signals  
interface  
GND  
U1  
VCC  
JP1  
2901_P32  
10  
9
8
7
6
5
4
3
2
7
8
9
DCD  
DSR  
CTS  
RI  
RTS  
DTR  
RXC  
RXD  
TXD  
ASRCH  
TXC  
To  
15  
--> RS232  
level shifter  
--> Host  
VPA  
VNA  
VREF  
VBG  
VPA  
4
21  
18  
19  
14  
VNA  
10  
32  
31  
30  
27  
1
C4  
100nF  
C5  
microprocessor  
100nF  
R2  
21K  
HBDEN  
VCC  
20  
17  
16  
1
RXA  
TXAP  
TXAN  
28  
HEADER 10  
GND  
R11 0R  
R3  
5.1K  
T1  
3
2
R4  
470  
C7  
.033UF  
SEC  
4
PRI  
1
R12  
0R  
R13  
nc  
671-8005  
Recommended Schematics Arrangement  
12  
Download from Www.Somanuals.com. All Manuals Search And Download.  
73M2901/5V  
Advanced Single  
Chip Modem  
TYPICAL USA APPLICATION SCHEMATICS  
13  
Download from Www.Somanuals.com. All Manuals Search And Download.  
73M2901/5V  
Advanced Single  
Chip Modem  
BER VS SNR  
BER VS RECEIVE LEVEL  
V.22bis  
V.22bis  
3002A Line, 5.0V, 25C  
3002A Line, 5.0V, 25C  
1.00E+00  
1.00E+00  
1.00E-01  
1.00E-02  
1.00E-03  
1.00E-04  
1.00E-05  
1.00E-06  
1.00E-01  
1.00E-02  
1.00E-03  
1.00E-04  
1.00E-05  
1.00E-06  
Answer  
Originate  
Answer  
Originate  
4
8
12 16 20 24 28 32 36 40 44  
Receive Level (dBm)  
10 11 12 13 14 15 16 17 18 19  
SNR (Rx Signal/3k Hz) (dB)  
14  
Download from Www.Somanuals.com. All Manuals Search And Download.  
73M2901/5V  
Advanced Single  
Chip Modem  
32 PIN PLCC PIN-OUT  
PIN  
1
PIN NAME  
ASRCH  
RING  
RELAY  
RI  
PIN  
17  
PIN NAME  
TXAP  
VREF  
VBG  
2
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
3
4
RXA  
5
VND  
VNA  
6
VPD  
VND  
7
DCD  
OSCOUT  
OSCIN  
VPD  
8
DSR  
9
CTS  
10  
11  
12  
13  
14  
15  
16  
RTS  
VND  
USR11  
USR10  
RESET  
HBDEN  
VPA  
TXD  
TXCLK  
VPD  
RXD  
RXCLK  
DTR  
TXAN  
44 PIN TQFP PIN-OUT  
PIN  
1
PIN NAME  
N/C  
PIN  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
PIN NAME  
VPD  
PIN  
PIN NAME  
PIN  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
PIN NAME  
N/C  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
N/C  
2
VPD  
N/C  
VND  
RXD  
3
DCD  
N/C  
OSCOUT  
OSCIN  
VPD  
RXCLK  
DTR  
4
DSR  
HBDEN  
VPA  
5
CTS  
ASRCH  
RING  
RELAY  
N/C  
6
RTS  
TXAN  
TXAP  
VREF  
VBG  
VND  
7
USR11  
USR10  
RESET  
N/C  
N/C  
8
TXD  
9
TXCLK  
N/C  
N/C  
10  
11  
RXA  
RI  
VND  
VNA  
VPD  
VND  
15  
Download from Www.Somanuals.com. All Manuals Search And Download.  
73M2901/5V  
Advanced Single  
Chip Modem  
MECHANICAL DRAWINGS  
32-Pin PLCC  
16  
Download from Www.Somanuals.com. All Manuals Search And Download.  
73M2901/5V  
Advanced Single  
Chip Modem  
MECHANICAL DRAWINGS (continued)  
44-Pin TQFP (JEDEC LQFP)  
17  
Download from Www.Somanuals.com. All Manuals Search And Download.  
73M2901/5V  
Advanced Single  
Chip Modem  
CAUTION: Use handling procedures necessary for a  
PACKAGE PIN DESIGNATIONS  
(Top View)  
static sensitive component.  
32-Lead PLCC  
73M2901-32IH/5  
44-Pin TQFP  
73M2901-IGT/5  
ORDERING INFORMATION  
PART DESCRIPTION  
ORDER NUMBER  
PACKAGING MARK  
73M2901/5V  
73M2901-32IH/5  
73M2901-32IH  
32-Pin Plastic Leaded Chip Carrier  
44-Pin Thin Quad Flat Pack  
73M2901/5V  
73M2901-IGT/5  
73M2901-IGT  
No responsibility is assumed by TDK Semiconductor Corporation for use of this product nor for any infringements of patents and trademarks  
or other rights of third parties resulting from its use. No license is granted under any patents, patent rights or trademarks of  
TDK Semiconductor Corporation, and the company reserves the right to make changes in specifications at any time without notice.  
Accordingly, the reader is cautioned to verify that the data sheet is current before placing orders.  
ÓTDK Semiconductor Corporation  
08/30/01 Rev. D  
Revision:  
18  
Download from Www.Somanuals.com. All Manuals Search And Download.  
73M2901/5V  
Advanced Single  
Chip Modem  
August 22, 2001  
August 30, 2001  
Removed 5V pin callouts from package drawing.  
Updated Mechanical Drawing  
19  
Download from Www.Somanuals.com. All Manuals Search And Download.  

Technicolor Thomson Flat Panel Television LB030 User Manual
Telex Stereo System 841 40 User Manual
Toshiba Air Conditioner RAS 18LAH A User Manual
Toshiba CD Player SR C8002 User Manual
Toshiba Printer B 852 TS12 QQ User Manual
Tripp Lite TV Cables A008 006 User Manual
Uniden Two Way Radio UH044SX User Manual
Vax Flat Panel Television 17RTC User Manual
Weber Charcoal Grill 30786 User Manual
Weber Gas Grill Weber User Manual