TDK HHM2317B3, GSM-DCS-PCS-Tx User Manual

(1/2)

Multilayer Chip Dual-Band Directional Couplers
For GSM/DCS/PCS-Tx

HHM Series HHM2317B3

SHAPES AND DIMENSIONS

8

0.3± 0.2

1

7
OUT(1

0.95± 0.2

Dimensions in mm

)

Monitor
output

8

)

Terminal functions

1.25± 0.15

1 Band1 input port
2 GND
3 Band2 input port
450Ω termination
5 Band2 output port
6 GND
7 Band1 output port
8 Monitor output port

2.0± 0.15

21

3

4

0.25± 0.2

567

0.65± 0.1

0.2± 0.2 0.35± 0.1

CIRCUIT DIAGRAM

)

IN(2

50Ω

3

4

OUT(2

GND2IN(1

5

6

)

GND

Conformity to RoHS Directive

RECOMMENDED PC BOARD PATTERNS

0.3

ø0.3

ø0.3

0.4

0.3

This width is 50Ω.
CPW for 0.6mm thick Teflon substrate.

1.0

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.

• All specifications are subject to change without notice.

001-03 / 20080105 / e761_hhm2317b3.fm

ELECTRICAL CHARACTERISTICS

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

IN1-OUT2 (dB)min. 27 27 27

Isolation

∗

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

∗

Isolation between opposite bands is specified over the frequency ranges of both bands.

Operating (°C) –40 to +85 –40 to +85 –40 to +85
Storage (°C) –40 to +85 –40 to +85 –40 to +85

Isolation in-band is specified over the frequency of the band in frequency.

FREQUENCY CHARACTERISTICS

GSM900

COUPLING

–10

)

dB

–15

(

–20

–25

Coupling factor

–30

800 1000950900850

2

1

Frequency(MHz

1: 880MHz
–19.2dB
2: 915MHz
–18.9dB

)

DCS1800/PCS1900

COUPLING

–10

)

dB

–15

1

(

–20

–25

Coupling factor

–30

1700 200018501800 195019001750

2

Frequency(MHz

1: 1710MHz

4

3

)

–14.0dB
2: 1785MHz
–13.7dB
3: 1850MHz
–13.4dB
4: 1910MHz
–13.2dB

(2/2)

ISOLATION

–20

–25

)

–30

dB

(

–35

–40

Isolation

–45

–50

800 850 1000950900

INSERTION LOSS

0

)

–0.2

dB

(

–0.4

–0.6

–0.8

Insertion loss

–1.0

800 850 1000950900

VSWR

2.0

1.8

)

1.6

dB

(

1.4

VSWR

1.2

1.0
800 850 1000950900

2

1

Frequency(MHz

1

2

Frequency(MHz

2

1

Frequency(MHz

ISOLATION

1: 880MHz
–31.9dB
2: 915MHz
–31.6dB

)

–20

–25

)

–30

dB

(

–35

–40

Isolation

–45

–50

1700 200018501800 195019001750

1: 1710MHz
–32.9dB
2: 1785MHz
–32.6dB

1

2

Frequency(MHz

)

4

3

3: 1850MHz
–32.2dB
4: 1910MHz
–31.7dB

INSERTION LOSS

1: 880MHz
–0.07dB
2: 915MHz
–0.08dB

)

0

)

–0.2

dB

(

–0.4

–0.6

–0.8

Insertion loss

–1.0

1700 200018501800 195019001750

1: 1710MHz

1

2

3

Frequency(MHz

4

)

–0.17dB
2: 1785MHz
–0.20dB
3: 1850MHz
–0.22dB
4: 1910MHz
–0.22dB

VSWR

1: 880MHz
–27.6dB
2: 915MHz
–26.9dB

)

2.0

1.8

)

1.6

dB

(

1.4

VSWR

1.2

1.0

1

1700 200018501800 195019001750

2

3

Frequency(MHz

4

)

1: 1710MHz
–27.6dB
2: 1785MHz
–28.9dB
3: 1850MHz
–31.4dB
4: 1910MHz
–32.9dB

• All specifications are subject to change without notice.

001-03 / 20080105 / e761_hhm2317b3.fm