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TDA9874H Datasheet(PDF) 5 Page - NXP Semiconductors |
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TDA9874H Datasheet(HTML) 5 Page - NXP Semiconductors |
5 / 56 page 1998 Apr 27 5 Philips Semiconductors Preliminary specification Digital TV sound demodulator/decoder TDA9874H 2.1.3 SATELLITE SYSTEMS An important specification for satellite TV reception is the Astra specification. The TDA9874H is suited 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 MHz, 6.60 MHz or 6.65 MHz can also be received. A de-emphasis of 60 µs or in accordance with J17 is available. 2. m/st/d = mono or stereo or dual language sound. 3. Adaptive de-emphasis = 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 mono 15/50(1) Sub 7.02/7.20 0.15 50 m/st/d(2) 15/adaptive(3) Sub 7.38/7.56 0.15 50 m/st/d(2) 15/adaptive(3) Sub 7.74/7.92 0.15 50 m/st/d(2) 15/adaptive(3) Sub 8.10/8.28 0.15 50 m/st/d(2) 15/adaptive(3) TYPE NUMBER PACKAGE NAME DESCRIPTION VERSION TDA9874H QFP44 plastic quad flat package; 44 leads (lead length 2.35 mm); body 14 × 14 × 2.2 mm SOT205-1 |
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