(1/2)
Conformity to RoHS Directive
Multilayer Chip Directional Couplers
For 2.4GHz W-LAN
HHM Series HHM2245SA1
SHAPES AND DIMENSIONS
1.6 0.1
5
0.6 0.1
6
4
3
Terminal functions
1
2
1
2
3
4
5
6
Input
GND
Output
50Ω load
GND
Monitor output
0.55 0.1
0.3 0.1
Dimensions in mm
0.1 0.1
CIRCUIT DIAGRAM
50Ω
Monitor GND
output
6
5
4
2
1
IN
3
OUT
GND
RECOMMENDED PC BOARD PATTERNS
0.25
0.25
This width is 50Ω.
Micro-strip line for 0.4mm thick
glass-epoxy substrate.
0.3
0.3
ø0.3 Through-hole
Dimensions in mm
ELECTRICAL CHARACTERISTICS
Frequency range
Coupling factor
2400 to 2500MHz
–16.0 1.0dB
0.35dB max.∗1
0.40dB max.∗2
25dB min.
Insertion loss
Isolation
VSWR
1.3 max.
Operating
Storage
–40 to +85°C
–40 to +85°C
Temperature range
∗1 25°C
∗2 Operating temperature
• 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.
• All specifications are subject to change without notice.
001-02 / 20080105 / e761_hhm2245sa1.
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