TDK DVB-H/ISDB-T Manuale utente

(1/2)

001-01 / 20080105 / e751_hhm1591a2.fm

• All specifications are subject to change without notice.

Multilayer Chip Baluns

For DVB-H/ISDB-T

HHM Series HHM1591A2

SHAPES AND DIMENSIONS

CIRCUIT DIAGRAM

RECOMMENDED PC BOARD PATTERNS

ELECTRICAL CHARACTERISTICS

Unbalanced impedance 50Ω

Balanced impedance 100Ω

Frequency range 350 to 950MHz

Unbalanced port return loss 4.5dB min.

Phase imbalance at balanced port 180±20deg.

Amplitude imbalance at balanced port 0±2.0dB

Insertion loss 2.8dB max.

Temperature range Operating –40 to +85°C

Storage –40 to +85°C

Packaging style and quantities 2000pieces/reel

Conformity to RoHS Directive

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

123

564

Unbalanced

input

50Ω

Balanced

output

100Ω

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

•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)

001-01 / 20080105 / e751_hhm1591a2.fm

• All specifications are subject to change without notice.

FREQUENCY CHARACTERISTICS

Unbalance 50Ω/Balance 100Ω

RETURN LOSS

INSERTION LOSS

AMPLITUDE BALANCE

PHASE BALANCE

–40

300 400 500 600 700 800 900 100011001200

–20

–25

–30

–35

–15

–10

–5

Return loss(dB)

Frequency(MHz)

1: 350.0MHz

–6.73dB

2: 650.0MHz

–17.05dB

3: 950.0MHz

–12.20dB

300 400 500 600 700 800 900 100011001200

Frequency(MHz)

1: 350.0MHz

–2.20dB

2: 650.0MHz

–0.92dB

3: 950.0MHz

–1.30dB

–5.0

–2.0

–2.5

–3.0

–3.5

–4.0

–4.5

–1.5

–1.0

–0.5

0.0

Insertion loss(dB)

300 400 500 600 700 800 900 100011001200

Frequency(MHz)

1: 350.0MHz

–0.43dB

2: 650.0MHz

0.19dB

3: 950.0MHz

0.61dB

–5

–1

–2

–3

–4

Amplitude balance(dB)

123

300 400 500 600 700 800 900 100011001200

Frequency(MHz)

1: 350.0MHz

178.43deg.

2: 650.0MHz

176.25deg.

3: 950.0MHz

174.96deg.

160

180

170

190

200

Phase balance(deg.)

123

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