TDK HHM Series HHM2245SA1 User manual

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001-02 / 20080105 / e761_hhm2245sa1.fm
• All specifications are subject to change without notice.
Multilayer Chip Directional Couplers
For 2.4GHz W-LAN
HHM Series HHM2245SA1
SHAPES AND DIMENSIONS
CIRCUIT DIAGRAM
RECOMMENDED PC BOARD PATTERNS
ELECTRICAL CHARACTERISTICS
∗125°C
∗2Operating temperature
Frequency range 2400 to 2500MHz
Coupling factor –16.0±1.0dB
Insertion loss 0.35dB max.∗1
0.40dB max.∗2
Isolation 25dB 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
450Ωload
5 GND
6 Monitor output
Terminal functions
IN OUT
6
GND
GND 50Ω
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_hhm2245sa1.fm
• All specifications are subject to change without notice.
FREQUENCY CHARACTERISTICS
COUPLING
INSERTION LOSS
ISOLATION
VSWR
–25
–30
–35
–20
–15
–10
–5
0
2400 2450 2500 2550 260023502300
Coupling factor(dB)
Frequency(MHz)
1: 2400MHz
–16.3dB
2: 2500MHz
–16.2dB
12
–40
–1
–0.8
–0.4
–0.6
–0.2
0
Insertion loss(dB)
Frequency(MHz)
1: 2400MHz
–0.13dB
2: 2500MHz
–0.14dB
12
2300 260025502450 250024002350
Isolation(dB)
Frequency(MHz)
1: 2400MHz
–31.1dB
2: 2500MHz
–30.6dB
–20
–30
–40
–50
2300 260025502450 250024002350
–10
0
–60
12
1.2
1.4
1.6
1.8
1.0
2300 2350 26002450 2500 25502400
2.0
VSWR(dB)
Frequency(MHz)
1: 2400MHz
1.10dB
2: 2500MHz
1.11dB
2
1