TDK HHM Series HHM1521 Manuale utente

(1/2)

001-03 / 20080106 / e751_hhm1521.fm

• All specifications are subject to change without notice.

Multilayer Chip Baluns

For Bluetooth & 2.4GHz W-LAN

HHM Series HHM1521

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

200Ω

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 200Ω

Frequency range 2400 to 2500MHz

Unbalanced port return loss 10dB min.

Phase imbalance at balanced port 180±10deg.

Amplitude imbalance at balanced port 0±2.0dB

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)

001-03 / 20080106 / e751_hhm1521.fm

• All specifications are subject to change without notice.

FREQUENCY CHARACTERISTICS

Unbalance 50Ω/Balance 200Ω

RETURN LOSS

–30

2100 2200 2300 2400 2500 2600 2700

–20

–25

–15

–10

–5

Return loss(dB)

Frequency(MHz)

1: 2400MHz

–13.08dB

2: 2500MHz

–14.96dB

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: 2400MHz

–0.82dB

2: 2500MHz

–0.76dB

2100 2200 2300 2400 2500 2600 2700

AMPLITUDEBALANCE

–4

–5

–2

–3

–1

Amplitude balance(dB)

Frequency(MHz)

1: 2400MHz

–0.45dB

2: 2500MHz

–0.57dB

2100 2200 2300 2400 2500 2600 2700

PHASE BALANCE

155

175

185

195

170

165

160

180

190

200

205

Phase balance(deg.)

1: 2400MHz

180.7deg.

2: 2500MHz

181.3deg.

Frequency(MHz)

2100 2200 2300 2400 2500 2600 2700

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