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001-02 / 20080106 / e751_hhm1727d1.fm
• All specifications are subject to change without notice.
Multilayer Chip Baluns
For WiMAX
HHM Series HHM1727D1
SHAPES AND DIMENSIONS
0.6
±
0.1
0.8
±
0.1
0.3
±
0.1
0.1
±
0.1 0.25
±
0.1
1.6
±
0.1
6
5
4
1
2
3
Dimensions in mm
0.55
±
0.1
1
Unbalanced port
2
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
Unbal port
Bal port
0.25
0.25
0.3
0.5
0.5
0.85
0.2
0.3
0.95
0.15
ø0.3 Through-hole
Dimensions in mm
Land
Line width be designed to match 50
Ω
characteristic impedance depending on
PCB material and thickness.
ELECTRICAL CHARACTERISTICS
Unbalanced impedance
50
Ω
Balanced impedance
50
Ω
Frequency range
00 to
33
3900MHz
Unbalanced port return loss
10dB min.
Phase imbalance at balanced port
180±15deg
Amplitude imbalance at balanced port
0±1.5dB
Insertion loss
1.2dB
Attenuation
[800 to 960MHz]
11dB min.
[1700 to 1900MHz]
4dB min.
[1900 to 1980MHz]
3.5dB min.(4dB typ.)
Power capacity
0.5W max.
Temperature range
Operating
–40 to +85°C
Storage
–40 to +85°C
Packaging style and quantities
4000pieces/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.
