TDK GSM/DCS/PCS-Tx User manual

(1/2)
001-03 / 20080105 / e761_hhm2317b3.fm
• All specifications are subject to change without notice.
Multilayer Chip Dual-Band Directional Couplers
For GSM/DCS/PCS-Tx
HHM Series HHM2317B3
SHAPES AND DIMENSIONS
CIRCUIT DIAGRAM
RECOMMENDED PC BOARD PATTERNS
This width is 50Ω.
CPW for 0.6mm thick Teflon substrate.
Conformity to RoHS Directive
0.95±0.2
1.25±0.15
0.3±0.2
0.2±0.2 0.35±0.1
2.0±0.15
3
48
21
567
0.25±0.2
Dimensions in mm
0.65±0.1
1 Band1 input port
2 GND
3 Band2 input port
450Ωtermination
5 Band2 output port
6 GND
7 Band1 output port
8 Monitor output port
Terminal functions
IN(2)
3
5
OUT(2)6
GND
7
OUT(1)
GND
2
IN(1)
1
50Ω
Monitor
output
48
0.3
1.0
0.3
0.4
ø0.3
ø0.3
Dimensions in mm
•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)
001-03 / 20080105 / e761_hhm2317b3.fm
• All specifications are subject to change without notice.
ELECTRICAL CHARACTERISTICS
∗Isolation between opposite bands is specified over the frequency ranges of both bands.
Isolation in-band is specified over the frequency of the band in frequency.
FREQUENCY CHARACTERISTICS
GSM900
COUPLING
ISOLATION
INSERTION LOSS
VSWR
DCS1800/PCS1900
COUPLING
ISOLATION
INSERTION LOSS
VSWR
Band 12
System GSM DCS PCS
Frequency range (MHz) 880 to 915 1710 to 1785 1850 to 1910
Coupling factor (dB) –19.0±1.0 –14.0±1.0 –13.5±1.0
Insertion loss (dB)max. 0.30 0.45 0.50
Isolation∗
IN1-OUT2(dB)min. 27 27 27
IN2-OUT1(dB)min. 25 25 25
IN1-IN2(dB)min. 22 22 22
IN-Load (dB)min. 27 25 24
VSWR max. 1.3 1.3 1.3
Temperature range Operating (°C) –40 to +85 –40 to +85 –40 to +85
Storage (°C) –40 to +85 –40 to +85 –40 to +85
–30
800 1000950900850
–25
–20
–15
–10
Coupling factor(dB)
Frequency(MHz)
1: 880MHz
–19.2dB
2: 915MHz
–18.9dB
12
–50
–40
–45
–30
–35
–25
–20
800 850 1000950900
Isolation(dB)
Frequency(MHz)
1: 880MHz
–31.9dB
2: 915MHz
–31.6dB
12
800 850 1000950900
Frequency(MHz)
–0.8
–1.0
–0.4
–0.6
–0.2
0
Insertion loss(dB)
1: 880MHz
–0.07dB
2: 915MHz
–0.08dB
12
800 850 1000950900
Frequency(MHz)
1.2
1.4
1.6
1.8
1.0
2.0
VSWR(dB)
1: 880MHz
–27.6dB
2: 915MHz
–26.9dB
2
1
–30
1700 200018501800 195019001750
–25
–20
–15
–10
Coupling factor(dB)
Frequency(MHz)
1: 1710MHz
–14.0dB
2: 1785MHz
–13.7dB
3: 1850MHz
–13.4dB
4: 1910MHz
–13.2dB
1234
1700 200018501800 195019001750
Frequency(MHz)
–50
–40
–45
–30
–35
–25
–20
Isolation(dB)
1: 1710MHz
–32.9dB
2: 1785MHz
–32.6dB
3: 1850MHz
–32.2dB
4: 1910MHz
–31.7dB
1234
1700 200018501800 195019001750
Frequency(MHz)
1: 1710MHz
–0.17dB
2: 1785MHz
–0.20dB
3: 1850MHz
–0.22dB
4: 1910MHz
–0.22dB
–0.8
–1.0
–0.4
–0.6
–0.2
0
Insertion loss(dB)
1234
1700 200018501800 195019001750
Frequency(MHz)
1: 1710MHz
–27.6dB
2: 1785MHz
–28.9dB
3: 1850MHz
–31.4dB
4: 1910MHz
–32.9dB
1.2
1.4
1.6
1.8
1.0
2.0
VSWR(dB)
234
1