參數(shù)資料
型號： PCM3060
元件分類： Codec
英文描述： 24-BIT, 96/192-kHz ASYNCHRONOUS STEREO AUDIO CODEC
中文描述： 24位96/192-kHz異步立體聲音頻編解碼
文件頁數(shù)： 36/45頁
文件大小： 394K
代理商： PCM3060
www.ti.com
PCM3060
SLAS533–MARCH 2007
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
Register 70
0
1
0
0
0
1
1
0
AT117
B7
AT116
B6
AT115
B5
AT114
B4
AT113
B3
AT112
B2
AT111
B1
AT110
B0
B15
B14
B13
B12
B11
B10
B9
B8
Register 71
0
1
0
0
0
1
1
1
AT127
AT126
AT125
AT124
AT123
AT122
AT121
AT120
AT1x[7:0]: Digital Attenuation Level Setting (ADC)
where x = 1 or 2, corresponding to the ADC output L-ch part of DOUT (x = 1) or R-ch part of DOUT (x = 2).
Default value: 1101 0111b
AT1x[7:0]
1111 1111b
1111 1110b
1111 1101b
:
1101 1000b
1101 0111b
1101 0110b
:
0001 0000b
0000 1111b
0000 1110b
:
0000 0000b
DECIMAL VALUE
255
254
253
:
216
215
214
:
16
15
14
:
0
ATTENUATION LEVEL SETTING
20 dB
19.5 dB
19 dB
:
0.5 dB
0 dB, no attenuation (default)
–0.5 dB
:
–99.5 dB
–100 dB
Mute
:
Mute
Each ADC channel has a digital attenuator function with 20-dB gain. The attenuation level may be set from 20
dB to –100 dB in 0.5-dB steps, and also may be set to infinite attenuation (mute). The attenuation level change
from the current value to the target value is performed by incrementing or decrementing one by 0.5-dB step at
the timing of zero-cross detection on the input signal which is sampled for every 1/f
S
time interval, or for every
8/f
S
time interval if the zero-cross detection mode is disabled by ZCDD setting. If a zero-crossing is not detected
for 512/f
, actual level change is done for every 1/f
time interval until a zero-crossing is detected again. While
the attenuation level change sequence is in progress, new commands for attenuation level change are not
processed, but the new command overwrites the previous command in the command buffer. The last command
for attenuation level change is performed after the present attenuation level change sequence is finished.
The attenuation level for each channel can be set individually using the following formula, and the above table
shows attenuation levels for various settings:
Attenuation level (dB) = 0.5
×
(AT1x[7:0]
– 215), where AT1x[7:0]
DEC
= 0 through 255 for AT1x[7:0]
DEC
= 0
through 14, the level is set to infinite attenuation (mute).
36
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCM3060PW 功能描述:接口—CODEC 24B 96/192kHz Asynchronous Stereo RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
PCM3060PW 制造商:Texas Instruments 功能描述:LEADED PROCESS COMPATIBLE:YES
PCM3060PWG4 功能描述:接口—CODEC 24bit 96/192kHz Asynch St Aud Codec RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
PCM3060PWR 功能描述:接口—CODEC 24B 96/192kHz Asynchronous Stereo RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
PCM3060PWRG4 功能描述:接口—CODEC 24bit 96/192kHz Asynch St Aud Codec RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
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