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PCM3060 Datasheet(PDF) 32 Page - Texas Instruments

Part # PCM3060
Description  24-BIT, 96/192-kHz ASYNCHRONOUS STEREO AUDIO CODEC
PDF  48 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

PCM3060 Datasheet(HTML) 32 Page - Texas Instruments

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PCM3060
SLAS533B – MARCH 2007 – REVISED MARCH 2008
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
Register 65
0
1
0
0
0
0
0
1
AT217
AT216
AT215
AT214
AT213
AT212
AT211
AT210
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
Register 66
0
1
0
0
0
0
1
0
AT227
AT226
AT225
AT224
AT223
AT222
AT221
AT220
AT2x[7:0]: Digital Attenuation Level Setting (DAC)
Where x = 1 or 2, corresponding to the DAC output VOUTL (x = 1) and VOUTR (x = 2).
Default value: 1111 1111b
AT2x[7:0]
DECIMAL VALUE
ATTENUATION LEVEL SETTING
1111 1111b
255
0 dB, no attenuation (default)
1111 1110b
254
–0.5 dB
1111 1101b
253
–1 dB
:
:
:
1000 0001b
129
–63 dB
1000 0000b
128
–63.5 dB
0111 1111b
127
–64 dB
:
:
:
0011 1000b
56
–99.5 dB
0011 0111b
55
–100 dB
0011 0110b
54
Mute
:
:
:
0000 0000b
0
Mute
Each DAC channel (VOUTL and VOUTR) has a digital attenuator function. The attenuation level may be set from 0
dB to –100 dB in 0.5-dB steps, and also may be set to infinite attenuation (mute). The attenuation level change
from current value to target value is performed by incrementing or decrementing one 0.5-dB step for every 8/fS
time interval. 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 foregoing table
shows attenuation levels for various settings:
Attenuation level (dB) = 0.5
× (AT2x[7:0]
DEC – 255), where AT2x[7:0]DEC = 0 through 255 for AT2x[7:0]DEC = 0
through 54, the level is set to infinite attenuation (mute).
32
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Copyright © 2007–2008, Texas Instruments Incorporated
Product Folder Link(s): PCM3060



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