TDK HHM Series HHM1522B1 User manual

(1/2)
001-02 / 20080106 / e751_hhm1522b1.fm
• All specifications are subject to change without notice.
Multilayer Chip Baluns
For EGSM/Tx & Rx
HHM Series HHM1522B1
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
50Ω
Balanced
output
50Ω
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 50Ω
Frequency range 880 to 960MHz
Unbalanced port return loss 12dB min.
Phase imbalance at balanced port 180±10deg.
Amplitude imbalance at balanced port 0±1.0dB
Insertion loss 1.3dB 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.

(2/2)
001-02 / 20080106 / e751_hhm1522b1.fm
• All specifications are subject to change without notice.
FREQUENCY CHARACTERISTICS
Unbalance 50Ω/Balance 50Ω
RETURN LOSS
–40
700 800 900 1000 1100 1200
–20
–25
–30
–35
–15
–10
–5
0
Return loss(dB)
Frequency(MHz)
1: 880MHz
–23.68dB
2: 920MHz
–24.99dB
3: 960MHz
–22.03dB
123
INSERTION LOSS
–5.0
–4.0
–4.5
–3.0
–3.5
–2.0
–2.5
–1.0
–1.5
–0.5
0.0
Insertion loss(dB)
Frequency(MHz)
1: 880MHz
–0.96dB
2: 920MHz
–0.96dB
3: 960MHz
–0.97dB
700 800 900 1000 1100 1200
123
AMPLITUDEBALANCE
2
1
4
3
5
–4
–5
–2
–3
–1
0
Amplitude balance(dB)
Frequency(MHz)
1: 880MHz
0.45dB
2: 920MHz
0.47dB
3: 960MHz
0.49dB
700 800 900 1000 1100 1200
123
PHASE BALANCE
700 800 12001000 1100900
Frequency(MHz)
1: 880MHz
180.74deg.
2: 920MHz
180.75deg.
3: 960MHz
180.84deg.
23
1
160
200
190
180
170
Phase balance(deg.)