TDK Network Card GSM DCS PCS Tx User Manual

(1/2)  
Conformity to RoHS Directive  
Multilayer Chip Dual-Band Directional Couplers  
For GSM/DCS/PCS-Tx  
HHM Series HHM2317B3  
SHAPES AND DIMENSIONS  
2.0 0.15  
2
0.95 0.2  
1
7
3
8
4
Terminal functions  
1
2
3
4
5
6
7
8
Band1 input port  
GND  
Band2 input port  
50termination  
Band2 output port  
GND  
5
6
0.65 0.1  
0.3 0.2  
Band1 output port  
Monitor output port  
Dimensions in mm  
0.2 0.2 0.35 0.1  
CIRCUIT DIAGRAM  
( )  
IN 2  
( )  
IN 1  
1
GND  
2
3
Monitor  
8 output  
4
5
6
7
( )  
OUT 2  
( )  
GND OUT 1  
RECOMMENDED PC BOARD PATTERNS  
0.3  
ø0.3  
ø0.3  
0.3  
Dimensions in mm  
This width is 50.  
CPW for 0.6mm thick Teflon substrate.  
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 / 20080105 / e761_hhm2317b3.
 

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