TDK Network Card HHM Series HHM1521 User Manual

(1/2)  
Conformity to RoHS Directive  
Multilayer Chip Baluns  
For Bluetooth & 2.4GHz W-LAN  
HHM Series HHM1521  
SHAPES AND DIMENSIONS  
2.0 0.15  
5
0.95 0.1  
6
4
3
1
2
Terminal functions  
0.65 0.2  
0.3 0.2  
1
2
3
4
5
6
Unbalanced port  
GND or DC feed+ RF GND  
Balanced port  
Balanced port  
GND  
N.C.  
0.2 0.2 0.35 0.2  
Dimensions in mm  
CIRCUIT DIAGRAM  
6
5
4
3
Unbalanced  
input  
50  
Balanced  
output  
200Ω  
1
2
RECOMMENDED PC BOARD PATTERNS  
0.3 0.2  
This width is 50.  
Micro-strip line for 0.4mm thick  
glass-epoxy substrate.  
6
1
5
2
4
3
ø0.3 Through-hole  
Dimensions in mm  
0.3  
ELECTRICAL CHARACTERISTICS  
Unbalanced impedance  
Balanced impedance  
50  
200Ω  
Frequency range  
2400 to 2500MHz  
Unbalanced port return loss  
Phase imbalance at balanced port  
Amplitude imbalance at balanced port  
Insertion loss  
10dB min.  
180 10deg.  
0 2.0dB  
1.0dB max.  
–40 to +85°C  
–40 to +85°C  
2000pieces/reel  
Operating  
Storage  
Temperature range  
Packaging style and quantities  
Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and  
specific bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.  
• All specifications are subject to change without notice.  
001-03 / 20080106 / e751_hhm1521.
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