(1/2)
Conformity to RoHS Directive
Multilayer Chip Baluns
For WiMAX
HHM Series HHM1791A1
SHAPES AND DIMENSIONS
1.6 0.1
5
0.6 0.1
6
4
3
Terminal functions
1
2
1
2
3
4
5
6
N.C.
GND
Balanced port
Balanced port
GND
0.55 0.1
0.3 0.1
Unbalanced port
0.1 0.1 0.25 0.1
Dimensions in mm
CIRCUIT DIAGRAM
6
5
4
Unbalanced
input
50Ω
Balanced
output
100Ω
1
2
3
RECOMMENDED PC BOARD PATTERNS
0.25
0.25
This width is 50Ω.
Micro-strip line for 0.4mm thick
glass-epoxy substrate.
6
1
5
2
4
3
0.3
0.3
ø0.3 Through-hole
Dimensions in mm
ELECTRICAL CHARACTERISTICS
Unbalanced impedance
Balanced impedance
50Ω
100Ω
Frequency range
2500 to 2700MHz
10dB min.
180 10deg
0 2.2dB
0.8dB max.
–40 to +85°C
–40 to +85°C
4000pieces/reel
Unbalanced port return loss
Phase imbalance at balanced port
Amplitude imbalance at balanced port
Insertion loss
Operating
Temperature range
Storage
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.
002-01 / 20080520 / e751_hhm1791a1.
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