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001-02 / 20080105 / e751_hhm1564a4.fm
• All specifications are subject to change without notice.
Multilayer Chip Baluns
For AGSM/Tx & Rx
HHM Series HHM1564A4
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
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
CIRCUIT DIAGRAM
123
564
Unbalanced
input
50
Ω
Balanced
output
200Ω
RECOMMENDED PC BOARD PATTERNS
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
ELECTRICAL CHARACTERISTICS
Unbalanced impedance 50Ω
Balanced impedance 200Ω
Frequency range to 824 894MHz
Unbalanced port return loss 10.0dB min.
Phase imbalance at balanced port 180±10deg.
Amplitude imbalance at balanced port 0±1.0dB
Insertion loss 1.0dB 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.
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001-02 / 20080105 / e751_hhm1564a4.fm
• All specifications are subject to change without notice.
FREQUENCY CHARACTERISTICS
Unbalance 50Ω/Balance 200Ω
RETURN LOSS
–50
750 790 810770 830 850 870 890 910 930 950
–20
–25
–30
–35
–40
–45
–15
–10
–5
0
Return loss
(
dB
)
Frequency
(
MHz
)
1: 824.0MHz
–22.6dB
2: 859.0MHz
–26.46dB
3: 894.0MHz
–20.48dB
1
2
3
INSERTION LOSS
750 790 810770 830 850 870 890 910 930 950
Frequency
(
MHz
)
1: 824.0MHz
–0.66dB
2: 859.0MHz
–0.62dB
3: 894.0MHz
–0.63dB
–5.0
–2.0
–2.5
–3.0
–3.5
–4.0
–4.5
–1.5
–1.0
–0.5
0.0
Insertion loss
(
dB
)
1
2
3
AMPLITUDE BALANCE
750 790 810770 830 850 870 890 910 930 950
Frequency
(
MHz
)
1: 824.0MHz
0.31dB
2: 859.0MHz
0.32dB
3: 894.0MHz
0.338dB
–5
1
0
–1
–2
–3
–4
2
3
4
5
Amplitude balance
(
dB
)
1
2 3
PHASE BALANCE
750 790 810770 830 850 870 890 910 930 950
Frequency
(
MHz
)
1: 824.0MHz
178.2deg.
2: 859.0MHz
178.0deg.
3: 894.0MHz
177.8deg.
160
180
175
170
165
185
190
195
200
Phase balance
(
deg.
)
1
2
3
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