TDK HHM Series HHM1727D1 Specifications

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001-02 / 20080106 / e751_hhm1727d1.fm

• All specifications are subject to change without notice.

Multilayer Chip Baluns
For WiMAX

HHM Series HHM1727D1

SHAPES AND DIMENSIONS

0.6±0.1

0.8±0.1

0.3±0.1

0.1±0.1 0.25 ±0.1

1.6±0.1

654

123

Dimensions in mm

0.55±0.1

1 Unbalanced port
2 GND
3 Balanced port
4 Balanced port
5 GND
6 N.C.

Terminal functions

CIRCUIT DIAGRAM

123

564

Unbalanced
input

50

Ω

Balanced
output

50Ω

RECOMMENDED PC BOARD PATTERNS

Unbal port Bal port

0.250.250.3

0.5

0.5

0.85

0.2

0.3

0.950.15

ø0.3 Through-hole

Dimensions in mm

Land

Line width be designed to match 50Ω characteristic impedance depending on
PCB material and thickness.

ELECTRICAL CHARACTERISTICS

Unbalanced impedance 50Ω
Balanced impedance 50Ω
Frequency range 00 to 33 3900MHz
Unbalanced port return loss 10dB min.
Phase imbalance at balanced port 180±15deg
Amplitude imbalance at balanced port 0±1.5dB
Insertion loss 1.2dB

Attenuation

[800 to 960MHz] 11dB min.
[1700 to 1900MHz] 4dB min.
[1900 to 1980MHz] 3.5dB min.(4dB typ.)

Powe r capacity 0.5W max.

Temperature range

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

Packaging style and quantities 4000pieces/reel

Conformity to RoHS Directive

• 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.

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001-02 / 20080106 / e751_hhm1727d1.fm

• All specifications are subject to change without notice.

FREQUENCY CHARACTERISTICS

Unbalance 50Ω/Balance 50Ω

RETURN LOSS

–40

500

1500 20001000 2500 3000 3500 40004500 5000

–20

–25

–30

–35

–15

–10

–5

0

Return loss

(

dB

)

Frequency(MHz

)

1: 3300.0MHz
–14.14dB
2: 3600.0MHz
–20.18dB
3: 3900.0MHz
–24.30dB

1

2

3

INSERTION LOSS

500

1500 20001000 2500 3000 3500 40004500 5000

Frequency(MHz

)

1: 3300.0MHz
–0.77dB
2: 3600.0MHz
–0.63dB
3: 3900.0MHz
–0.65dB

–40

–20

–25

–30

–35

–15

–10

–5

0

Insertion loss

(

dB

)

1

2

3

AMPLITUDE BALANCE

–5

1

0
–1
–2
–3
–4

2

3

4

5

Amplitude balance

(

dB

)

500

1500 20001000 2500 3000 3500 40004500 5000

Frequency(MHz

)

1: 3300.0MHz
–0.21dB
2: 3600.0MHz
–0.17dB
3: 3900.0MHz
–0.09dB

1

2

3

PHASE BALANCE

500

1500 20001000 2500 3000 3500 40004500 5000

Frequency(MHz

)

1: 3300.0MHz

177.50deg.
2: 3600.0MHz

177.64deg.
3: 3900.0MHz

177.98deg.

160

180

170

190

200

Phase balance

(

deg.

)

1

2

3