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參數(shù)資料
| 型號(hào)： | 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(shù)： | 50/68頁 |
| 文件大?。?/td> | 231K |
| 代理商： | TDA9874AH |
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1999 Dec 03
50
Philips Semiconductors
Preliminary specification
Digital TV sound demodulator/decoder
TDA9874A
10.3.23 E
ASY
S
TANDARD
P
ROGRAMMING
(ESP)
REGISTER
This register is used to simplify the setting of different TV
sound standards via the I
2
C-bus. Writing to this register
will overwrite the contents of registers 3 to 10 with the
settings needed to demodulate one of the standards
shown in Table 70. After power-up, the default setting has
no effect on the settings of registers 3 to 10. Old values of
registers 3 to 10 are not stored. Demodulators filter the
bandwidth and identification time constants are also set
independently from the chosen standard selected in this
register.
This means for I
2
C-bus refreshing: using the ESP option,
registers 3 to 10 should not be overwritten during a
refresh.
If ESP is not used, the ESP register should not be
accessed in the refresh routine.
Demodulators filter bandwidth and identification time
constants are also set independently in this register.
The default setting after power-on reset is ‘0000 0000’.
For a description of bits IDMOD0 and IDMOD1 (FM
identification mode), FILTBW0 and FILTBW1
(demodulator filter bandwidth) refer to Section 10.3.7. Bits
IDMOD0andIDMOD1(FMidentificationmode),FILTBW0
and FILTBW1 (demodulator filter bandwidth) are identical
in registers 255 and 9.
Table 69
Easy standard programming register (subaddress 255)
Table 70
Available standards for easy standard programming
7
6
5
4
3
2
1
0
FILTBW1
FILTBW0
IDMOD1
IDMOD0
EPB3
EPB2
EPB1
EPB0
EPB3
EPB2
EPB1
EPB0
STANDARD
NUMBER
NAME
0
0
0
0
0
0
0
0
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
0
1
2
3
4
5
6
7
8
9
A2, B/G
A2, M (Korea)
A2, D/K (1)
A2, D/K (2)
A2, D/K (3)
NICAM, I
NICAM, B/G
NICAM, D/K
NICAM, L
reserved
reserved
reserved
Astra satellite stereo
(7.02/7.20 MHz)
reserved
reserved
reserved
10
11
12
1
1
1
1
1
1
0
1
1
1
0
1
13
14
15
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|---|---|
| TDA9874AH/V2,557 | 功能描述:音頻放大器 DIGITAL STEREO DECODER VCR RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)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(chǎn)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(fēng)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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