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參數(shù)資料
| 型號(hào)： | 935263513551 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, PQFP64 |
| 封裝： | PLASTIC, QFP-64 |
| 文件頁數(shù)： | 18/55頁 |
| 文件大?。?/td> | 387K |
| 代理商： | 935263513551 |
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1999 May 10
25
Philips Semiconductors
Preliminary specication
Universal Serial Bus (USB) CODEC
UDA1325
Internal registers
Table 17 PGA gain registers
Table 18 ADIF control registers
ADDRESS
REGISTER
COMMENTS
BIT
VALUE
0800h
PGA gain register
reserved
7
X
PGA input selection
6
0 (do not change it)
PGA gain right channel
5, 4 and 3 000 =
3dB
001 = 0 dB
010 = 3 dB
011=9dB
100 = 15 dB
101 = 21 dB
110=27dB
111=27dB
PGA gain left channel
2, 1 and 0 000 =
3dB
001 = 0 dB
010 = 3 dB
011=9dB
100 = 15 dB
101 = 21 dB
110=27dB
111=27dB
ADDRESS
REGISTER
COMMENTS
BIT
VALUE
0801h
ADIF control register
reserved
7
X
number of bits per audio sample
to be transmitted to the host
6 and 5
00 = reserved
01 = 8 bits audio samples
10 = 16 bits audio samples
11 = 24 bits audio samples
mono/stereo selection
4
0 = mono
1 = stereo
selection audio input recording
channel
3
0 = digital serial audio input
1 = analog input
selection high-pass lter of
ADIF (DC-lter)
2
0 = high-pass lter off
1 = high-pass lter on
I2S-bus input serial input format
recording channel
1 and 0
00 = I2S-bus
01 = 16-bit LSB justied
10 = 18-bit LSB justied
11 = 20-bit LSB justied
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