TDK Computer Hardware DVB H ISDB T User Manual

(1/2)  
Conformity to RoHS Directive  
Multilayer Chip Baluns  
For DVB-H/ISDB-T  
HHM Series HHM1591A2  
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  
100Ω  
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  
100Ω  
Frequency range  
350 to 950MHz  
4.5dB min.  
180 20deg.  
0 2.0dB  
2.8dB max.  
–40 to +85°C  
–40 to +85°C  
2000pieces/reel  
Unbalanced port return loss  
Phase imbalance at balanced port  
Amplitude imbalance at balanced port  
Insertion loss  
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.  
001-01 / 20080105 / e751_hhm1591a2.
 

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