(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
50Ω
Balanced
output
100Ω
1
2
RECOMMENDED PC BOARD PATTERNS
0.3 0.2
This width is 50Ω.
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
50Ω
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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