TDA9874AHB データシートの表示（PDF） - NXP Semiconductors.

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TDA9874AHB

Digital TV sound demodulator/decoder

NXP Semiconductors. 

Philips Semiconductors

Digital TV sound demodulator/decoder

Product specification

TDA9874A

2.1.3 SATELLITE SYSTEMS

An important specification for satellite TV reception is the Astra specification. The TDA9874A is suitable for the reception

of Astra and other satellite signals, with sound carrier frequencies from 4 to 9.2 MHz.

Table 4 FM satellite sound

CARRIER TYPE

Main

Sub

CARRIER

FREQUENCY

(MHz)

6.50(1)

7.02/7.20

7.38/7.56

7.74/7.92

8.10/8.28

MODULATION

INDEX

0.26

0.15

MAXIMUM

FM DEVIATION

(kHz)

85(2)

50

MODULATION

mono

m/st/d(4)

Notes

1. For other satellite systems, frequencies of e.g. 5.80, 6.60 or 6.65 MHz can also be received.

2. Main channels with high deviation can also be handled.

3. A de-emphasis of 60 µs, or in accordance with J17, is available.

4. m/st/d = mono or stereo or dual language sound.

5. Adaptive de-emphasis is compatible to transmitter specification.

BANDWIDTH/

DE-EMPHASIS

(kHz/µs)

15/50(3)

15/adaptive(5)

3 ORDERING INFORMATION

TYPE NUMBER

TDA9874APS

TDA9874AH

NAME

SDIP42

QFP44

PACKAGE

DESCRIPTION

plastic shrink dual in-line package; 42 leads (600 mil)

plastic quad flat package; 44 leads (lead length 2.35 mm);

body 14 × 14 × 2.2 mm

VERSION

SOT270-1

SOT205-1

2000 Aug 04

5

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