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參數(shù)資料
| 型號(hào)： | 935263704557 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類(lèi)： | 接收器 |
| 英文描述： | AM/FM, AUDIO DEMODULATOR, PQFP44 |
| 封裝： | PLASTIC, QFP-44 |
| 文件頁(yè)數(shù)： | 45/71頁(yè) |
| 文件大小： | 304K |
| 代理商： | 935263704557 |
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2000 Aug 04
5
Philips Semiconductors
Product specication
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.
2. Main channels with high deviation can also be handled.
3. A de-emphasis of 60
s, 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.
3
ORDERING INFORMATION
CARRIER TYPE
CARRIER
FREQUENCY
(MHz)
MODULATION
INDEX
MAXIMUM
FM DEVIATION
(kHz)
MODULATION
BANDWIDTH/
DE-EMPHASIS
(kHz/
s)
Main
6.50(1)
0.26
85(2)
mono
15/50(3)
Sub
7.02/7.20
0.15
50
m/st/d(4)
15/adaptive(5)
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 at package; 44 leads (lead length 2.35 mm);
body 14
× 14 × 2.2 mm
SOT205-1
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