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參數(shù)資料
| 型號(hào)： | TDA9875AH/V2,557 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | PLASTIC, QFP |
| 文件頁(yè)數(shù)： | 73/96頁(yè) |
| 文件大小： | 324K |
| 代理商： | TDA9875AH/V2,557 |
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1999 Dec 20
75
Philips Semiconductors
Product specication
Digital TV Sound Processor (DTVSP)
TDA9875A
10.3.38 BEEPER FREQUENCY CONTROL REGISTER
This register is used to select from sample beeper oscillator frequencies. The beeper output signal is added to the Main
and Auxiliary channel output DAC.
Due to the frequency response of the audio DACs upsampling filters, the 25 kHz beep is approximately 5 dB louder than
the 390 Hz beep.
Table 81 Subaddress 43 (note 1)
Note
1. The default setting at power-up is 0000 0000.
10.3.39 BEEPER VOLUME CONTROL REGISTER
This register is used to set the beeper volume. The gain setting is relative to digital full-scale at the input to the Main and
Auxiliary channel output DACs. The beeper volume is independent of any other volume setting.
The beeper signal is added to the Main and Auxiliary channel output signals in the 2
× fs domain. The beeper volume
should be set with great care, when the audio signals in the Main and Auxiliary channels are close to digital full-scale, to
avoid output signal distortion due to overload.
MSB
LSB
GENERATED FREQUENCY (Hz)
B7
B6
B5
B4
B3
B2
B1
B0
00000111
25000
00000110
7040
00000101
3580
00000100
1770
00000011
1270
00000010
900
00000001
640
00000000
390
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相關(guān)代理商/技術(shù)參數(shù) |
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| TDA9881HN/V2,118 | 功能描述:調(diào)節(jié)器/解調(diào)器 IF MODULATOR RoHS:否 制造商:Texas Instruments 封裝 / 箱體:PVQFN-N24 封裝:Reel |
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