(1/2)
001-02 / 20130901 / rf_balun_hhm1548e1_en.fm
• All specifications are subject to change without notice.
Multilayer Chip Baluns
For 3.7GHz
HHM Series HHM1548E1
SHAPES AND DIMENSIONS
CIRCUIT DIAGRAM
RECOMMENDED PC BOARD PATTERNS
ELECTRICAL CHARACTERISTICS
Unbalanced impedance 50
Balanced impedance 200
Frequency range 3200 to 3925MHz
Unbalanced port return loss 10dB min.
Phase imbalance at balanced port 180±10deg.
Amplitude imbalance at balanced port 0±1.0dB
Insertion loss 1.2dB max.
Temperature range Operating –40 to +85°C
Storage –40 to +85°C
Packaging style and quantities 2000pieces/reel
Conformity to RoHS Directive
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
3 Balanced port
4 Balanced port
5 GND
6 N.C.
Terminal functions
123
564
Unbalanced
input
50Ω
Balanced
output
200Ω
0.35
0.30
Dimensions in mm
0.80
0.50
•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.
(2/2)
001-02 / 20130901 / rf_balun_hhm1548e1_en.fm
• All specifications are subject to change without notice.
FREQUENCY CHARACTERISTICS
Unbalance 50/Balance 200
RETURN LOSS
INSERTION LOSS
AMPLITUDE BALANCE
PHASE BALANCE
–30
–25
2500 45004000 42503250 35003000 37502750
–20
–15
–10
–5
0
Return loss(dB)
Frequency(MHz)
1: 3200.0MHz
–14.05dB
2: 3562.5MHz
–22.40dB
3: 3925.0MHz
–13.49dB
2500 45004000 42503250 35003000 37502750
0
–3.0
–2.5
–2.0
–1.5
–1.0
–0.5
0.0
Insertion loss(dB)
Frequency(MHz)
1: 3200.0MHz
–0.71dB
2: 3562.5MHz
–0.39dB
3: 3925.0MHz
–0.53dB
2500 45003750 4000 42503250 35002750 3000
2
1
3
–3
–1
–2
0
Amplitude balance(dB)
Frequency(MHz)
1: 3200.0MHz
0.11dB
2: 3562.5MHz
–0.36dB
3: 3925.0MHz
–0.46dB