TDK HHM Series HHM2208SB1 Specifications
(1/2)
001-02 / 20080105 / e761_hhm2208sb1.fm
• All specifications are subject to change without notice.
Multilayer Chip Directional Couplers
For DCS-PCS/Tx
HHM Series HHM2208SB1
SHAPES AND DIMENSIONS
CIRCUIT DIAGRAM
RECOMMENDED PC BOARD PATTERNS
ELECTRICAL CHARACTERISTICS
∗1
25°C
∗2
Operating temperature
Frequency range 1710 to 1910MHz
Coupling factor –14.0±1.0dB
Insertion loss
0.40dB max.
∗1
0.45dB max.
∗2
Isolation 35dB min.
VSWR 1.3 max.
Temperature range
Operating –40 to +85°C
Storage –40 to +85°C
Conformity to RoHS Directive
0.6±0.1
0.8±0.1
0.3±0.1
0.1±0.1
1.6±0.1
654
123
0.15±0.1
Dimensions in mm
0.55±0.1
1 Input
2 GND
3 Output
450Ω load
5 GND
6 Monitor output
Terminal functions
IN
OUT
6
GND
GND
50
Ω
54
13
2
Monitor
output
0.3
0.25
0.25
0.6 0.3
0.6
ø0.3 Through-hole
Dimensions in mm
0.7
0.3
This width is 50Ω.
Micro-strip line for 0.4mm thick
glass-epoxy substrate.
• 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 / 20080105 / e761_hhm2208sb1.fm
• All specifications are subject to change without notice.
FREQUENCY CHARACTERISTICS
COUPLING
INSERTION LOSS
ISOLATION
VSWR
–25
–30
–35
–20
–15
–10
–5
0
1700 1800 1900 200016001500
Coupling factor
(
dB
)
Frequency(MHz
)
1: 1710MHz
–14.2dB
2: 1785MHz
–13.9dB
3: 1850MHz
–13.6dB
4: 1920MHz
–13.3dB
1
3
4
2
–40
–1
–0.8
–0.4
–0.6
–0.2
0
Insertion loss
(
dB
)
Frequency(MHz
)
1: 1710MHz
–0.24dB
2: 1785MHz
–0.25dB
3: 1850MHz
–0.25dB
4: 1920MHz
–0.25dB
1
2
1500 20001800 190017001600
3
4
Isolation
(
dB
)
Frequency(MHz
)
1: 1710MHz
–40.5dB
2: 1785MHz
–39.5dB
3: 1850MHz
–39.1dB
4: 1920MHz
–37.9dB
–30
–40
–50
1500 20001800 190017001600
–20
–10
0
–60
1
2
3
4
1.2
1.4
1.6
1.8
1.0
1500 1600 20001800 19001700
2.0
VSWR
(
dB
)
Frequency(MHz
)
1: 1710MHz
1.25dB
2: 1785MHz
1.25dB
3: 1850MHz
1.27dB
4: 1920MHz
1.29dB
2
1
3
4
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