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參數資料
| 型號： | TDA9874AH |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 接收器 |
| 英文描述： | Digital TV sound demodulator/decoder |
| 中文描述： | AM/FM, AUDIO DEMODULATOR, PQFP44 |
| 封裝： | 14 X 14 MM, 2.20 MM HEIGHT, PLASTIC, SOT-205-1, QFP-44 |
| 文件頁數： | 34/68頁 |
| 文件大?。?/td> | 231K |
| 代理商： | TDA9874AH |
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1999 Dec 03
34
Philips Semiconductors
Preliminary specification
Digital TV sound demodulator/decoder
TDA9874A
10.3.7
D
EMODULATOR
C
ONFIGURATION
R
EGISTER
(DCONR)
This register should not be used when applying ESP. The default setting after power-on reset is ‘0000 0000’.
Table 26
Demodulator configuration register (subaddress 9)
Table 27
Description of the DCONR bits
Table 28
Identification mode
Table 29
Channel 2 receive mode
7
6
5
4
3
2
1
0
IDMOD1
IDMOD0
IDAREA
FILTBW1
CH2MOD1
CH2MOD0
FILTBW0
CH1MODE
BIT
SYMBOL
DESCRIPTION
7
6
IDMOD1
IDMOD0
Identification mode for FM sound:
these bits define the integrator time of the FM
identification. A valid result may be expected after twice this time has expired, at the
latest. The longer the time, the more reliable the identification; see Table 28.
Application area for FM identification:
when IDAREA = 1 it selects the FM
identification frequencies in accordance with the specification for Korea. When
IDAREA = 0, frequencies for Europe are selected (B/G and D/K standard).
selects filter bandwidth in accordance with Table 30
Channel 2 receive mode:
these bits control the hardware for the second sound carrier
in accordance with Table 29. The NICAM mode employs a wider bandwidth of the
decimation filters than the FM mode.
selects filter bandwidth in accordance with Table 30
Channel 1 receive mode:
when CH1MODE = 1 it selects the hardware for the first
sound carrier to operate in AM mode. When CH1MODE = 0 the FM mode is assumed.
This applies to both terrestrial and satellite FM reception.
5
IDAREA
4
3
2
FILTBW1
CH2MOD1
CH2MOD0
1
0
FILTBW0
CH1MODE
IDMOD1
IDMOD0
IDENTIFICATION MODE
0
0
1
1
0
1
0
1
slow
medium
fast
off/reset, recommended during use of high deviation mode
CH2MOD1
CH2MOD0
CHANNEL 2
0
0
1
0
1
0
FM
AM
NICAM
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TDA9874AH/V2,557 | 功能描述:音頻放大器 DIGITAL STEREO DECODER VCR RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA9874AHB | 功能描述:音頻放大器 DIGITAL STEREO DECODER VCR RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA9874APS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital TV sound demodulator/decoder |
| TDA9874H | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital TV sound demodulator/decoder |
| TDA9875 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital TV Sound Processor DTVSP |
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