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TDA9874AH Datasheet(PDF) 5 Page - NXP Semiconductors

No. de pieza TDA9874AH
Descripción Electrónicos  Digital TV sound demodulator/decoder
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Fabricante Electrónico  PHILIPS [NXP Semiconductors]
Página de inicio  http://www.nxp.com
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TDA9874AH Datasheet(HTML) 5 Page - NXP Semiconductors

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1999 Dec 03
5
Philips Semiconductors
Preliminary specification
Digital TV sound demodulator/decoder
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
Notes
1. For other satellite systems, frequencies of e.g. 5.80, 6.60 or 6.65 MHz can also be received. A de-emphasis of 60
µs,
or in accordance with J17, is available.
2. Main channels with high deviation can also be handled.
3. m/st/d = mono or stereo or dual language sound.
4. Adaptive de-emphasis is compatible to transmitter specification.
3
ORDERING INFORMATION
CARRIER TYPE
CARRIER
FREQUENCY
(MHz)
MODULATION
INDEX
MAXIMUM
FM DEVIATION
(kHz)
MODULATION
BANDWIDTH/
DE-EMPHASIS
(kHz/
µs)
Main
6.50(1)
0.26
85(2)
mono
15/50(1)
Sub
7.02/7.20
0.15
50
m/st/d(3)
15/adaptive(4)
7.38/7.56
7.74/7.92
8.10/8.28
TYPE NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA9874APS
SDIP42
plastic shrink dual in-line package; 42 leads (600 mil)
SOT270-1
TDA9874AH
QFP44
plastic quad flat package; 44 leads (lead length 2.35 mm);
body 14
× 14 × 2.2 mm
SOT205-1


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