TDK HHM Series HHM1522B1 - Manual

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001-02 / 20080106 / e751_hhm1522b1.fm
• All specifications are subject to change without notice.
Multilayer Chip Baluns
For EGSM/Tx & Rx
HHM Series HHM1522B1
SHAPES AND DIMENSIONS
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
6 5 4
1 2 3
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
CIRCUIT DIAGRAM
1 2 3
5 6 4
Unbalanced
input
50 Ω
Balanced
output
50 Ω
RECOMMENDED PC BOARD PATTERNS
0.2
0.3
0.3
0.8
0.6
0.7
ø0.3 Through-hole
This width is 50 Ω.
Micro-strip line for 0.4mm thick
glass-epoxy substrate.
Dimensions in mm
6 5 4
1 2 3
0.8
ELECTRICAL CHARACTERISTICS
Unbalanced impedance 50 Ω
Balanced impedance 50 Ω
Frequency range 880 to 960MHz
Unbalanced port return loss 12dB min.
Phase imbalance at balanced port 180±10deg.
Amplitude imbalance at balanced port 0±1.0dB
Insertion loss 1.3dB max.
Temperature range
Operating –40 to +85°C
Storage –40 to +85°C
Packaging style and quantities 2000pieces/reel
Conformity to RoHS Directive
• 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.