TDK HHM2245SA1 User Manual

(1/2)

Multilayer Chip Directional Couplers
For 2.4GHz W-LAN

HHM Series HHM2245SA1

SHAPES AND DIMENSIONS

1.6± 0.1

654

123

0.15± 0.1

0.55± 0.1

0.1±0.1

CIRCUIT DIAGRAM

GND

Monitor
output

6

54

13

IN

GND

0.6± 0.1

0.8± 0.1

Terminal functions

0.3± 0.1

50

Ω

2

OUT

1 Input
2 GND
3 Output
450Ω load
5 GND
6 Monitor output

Dimensions in mm

Conformity to RoHS Directive

RECOMMENDED PC BOARD PATTERNS

0.25

0.25
This width is 50Ω.

Micro-strip line for 0.4mm thick
glass-epoxy substrate.

0.6

0.6 0.3

0.7

0.3

0.3

ø0.3 Through-hole

Dimensions in mm

ELECTRICAL CHARACTERISTICS

Frequency range 2400 to 2500MHz
Coupling factor –16.0±1.0dB

Insertion loss

Isolation 25dB min.
VSWR 1.3 max.

Temperature range

∗1

25°C

∗2

Operating temperature

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

0.35dB max.

0.40dB max.

∗1

∗2

• 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.fm

FREQUENCY CHARACTERISTICS

COUPLING

0

–5

)

dB

–10

(

–15

–20

–25

–30

Coupling factor

–35

–40

1

2400 2450 2500 2550 260023502300

Frequency(MHz

2

)

1: 2400MHz
–16.3dB
2: 2500MHz
–16.2dB

ISOLATION

0

–10

)

–20

dB

(

–30

–40

Isolation

–50

–60

2300 260025502450 250024002350

1

Frequency(MHz

(2/2)

1: 2400MHz
–31.1dB
2: 2500MHz
–30.6dB

2

)

INSERTION LOSS

0

)

–0.2

dB

(

–0.4

–0.6

–0.8

Insertion loss

–1

2300 260025502450 250024002350

1

Frequency(MHz

VSWR

1: 2400MHz

2

)

–0.13dB
2: 2500MHz
–0.14dB

2.0

1.8

)

1.6

dB

(

1.4

VSWR

1.2

1.0
2300 2350 26002450 2500 25502400

1

Frequency(MHz

1: 2400MHz

1.10dB
2: 2500MHz

1.11dB

2

)

• All specifications are subject to change without notice.

001-02 / 20080105 / e761_hhm2245sa1.fm