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TDA9874AH Datasheet(PDF) 5 Page - NXP Semiconductors |
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TDA9874AH Datasheet(HTML) 5 Page - NXP Semiconductors |
5 / 68 page 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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