TDK HHM Series HHM1518A3 User manual

(1/2)

001-02 / 20080106 / e751_hhm1518a3.fm

• All specifications are subject to change without notice.

Multilayer Chip Baluns

For DCS-PCS/Tx & Rx

HHM Series HHM1518A3

SHAPES AND DIMENSIONS

0.95±0.1

1.25±0.15

0.65±0.2 0.3±0.2

0.2±0.2 0.35±0.2

2.0±0.15

654

123

Dimensions in mm

0.25+0.1

–0.2

1 Unbalanced port

2 GND or DC feed+ RF GND

3 Balanced port

4 Balanced port

5 GND

6 N.C.

Terminal functions

CIRCUIT DIAGRAM

123

564

Unbalanced

input

50Ω

Balanced

output

150Ω

RECOMMENDED PC BOARD PATTERNS

0.2

0.3

0.8 0.6

0.7

ø0.3 Through-hole

This width is 50Ω.

Micro-strip line for 0.4mm thick

glass-epoxy substrate.

Dimensions in mm

654

123

0.8

ELECTRICAL CHARACTERISTICS

Unbalanced impedance 50Ω

Balanced impedance 150Ω

Frequency range 1710 to 1990MHz

Unbalanced port return loss 10dB min.

Phase imbalance at balanced port 180±10deg.

Amplitude imbalance at balanced port 0±1.0dB

Insertion loss 1.0dB max.

Temperature range Operating –40 to +85°C

Storage –40 to +85°C

Packaging style and quantities 2000pieces/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.

(2/2)

001-02 / 20080106 / e751_hhm1518a3.fm

• All specifications are subject to change without notice.

FREQUENCY CHARACTERISTICS

Unbalance 50Ω/Balance 150Ω

RETURN LOSS

–50

1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100

–20

–25

–30

–35

–40

–45

–15

–10

–5

Return loss(dB)

Frequency(MHz)

1: 1710MHz

–20.71dB

2: 1850MHz

–19.68dB

3: 1990MHz

–19.87dB

123

INSERTION LOSS

–5.0

–4.0

–4.5

–3.0

–3.5

–2.0

–2.5

–1.0

–1.5

–0.5

0.0

Insertion loss(dB)

Frequency(MHz)

1: 1710MHz

–0.544dB

2: 1850MHz

–0.580dB

3: 1990MHz

–0.611dB

123

1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100

AMPLITUDEBALANCE

–4

–5

–2

–3

–1

Amplitude balance(dB)

Frequency(MHz)

1: 1710MHz

0.265dB

2: 1850MHz

0.222dB

3: 1990MHz

0.101dB

1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100

PHASE BALANCE

155

160

170

180

190

165

175

185

195

205

200

Phase balance(deg.)

1: 1710MHz

177.8deg.

2: 1850MHz

178.9deg.

3: 1990MHz

179.8deg.

123

Frequency(MHz)

1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100

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