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

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)

OUT(2)6

GND

OUT(1)

GND

IN(1)

50Ω

Monitor

output

0.3

1.0

0.3

0.4

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

–50

–40

–45

–30

–35

–25

–20

800 850 1000950900

Isolation(dB)

Frequency(MHz)

1: 880MHz

–31.9dB

2: 915MHz

–31.6dB

800 850 1000950900

Frequency(MHz)

–0.8

–1.0

–0.4

–0.6

–0.2

Insertion loss(dB)

1: 880MHz

–0.07dB

2: 915MHz

–0.08dB

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

–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

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

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