TDK DVB-H/ISDB-T Computer Hardware User Manual


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• All specifications are subject to change without notice.
Multilayer Chip Baluns
For DVB-H/ISDB-T
HHM Series HHM1591A2
SHAPES AND DIMENSIONS
CIRCUIT DIAGRAM
RECOMMENDED PC BOARD PATTERNS
ELECTRICAL CHARACTERISTICS
Unbalanced impedance 50Ω
Balanced impedance 100Ω
Frequency range 350 to 950MHz
Unbalanced port return loss 4.5dB min.
Phase imbalance at balanced port 180±20deg.
Amplitude imbalance at balanced port 0±2.0dB
Insertion loss 2.8dB max.
Temperature range
Operating –40 to +85°C
Storage –40 to +85°C
Packaging style and quantities 2000pieces/reel
Conformity to RoHS Directive
0.95±0.1
1.25±0.15
0.65±0.2 0.3±0.2
0.2±0.2 0.35±0.2
2.0±0.15
654
123
Dimensions in mm
0.25
+0.1
–0.2
1 Unbalanced port
2 GND or DC feed+ RF GND
3 Balanced port
4 Balanced port
5 GND
6 N.C.
Terminal functions
123
564
Unbalanced
input
50
Ω
Balanced
output
100Ω
0.2
0.3
0.3
0.8 0.6
0.7
ø0.3 Through-hole
This width is 50Ω.
Micro-strip line for 0.4mm thick
glass-epoxy substrate.
Dimensions in mm
654
123
0.8
• 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.