TDK HHM Series HHM2245SA1 User manual

(1/2)

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

GND

GND 50Ω

Monitor

output

0.3

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

2400 2450 2500 2550 260023502300

Coupling factor(dB)

Frequency(MHz)

1: 2400MHz

–16.3dB

2: 2500MHz

–16.2dB

–40

–1

–0.8

–0.4

–0.6

–0.2

Insertion loss(dB)

Frequency(MHz)

1: 2400MHz

–0.13dB

2: 2500MHz

–0.14dB

2300 260025502450 250024002350

Isolation(dB)

Frequency(MHz)

1: 2400MHz

–31.1dB

2: 2500MHz

–30.6dB

–20

–30

–40

–50

2300 260025502450 250024002350

–10

–60

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

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