Datasheet
PCM3168A
PCM3168A-Q1
SBAS452 – SEPTEMBER 2008 .........................................................................................................................................................................................
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DEC HEX B7 B6 B5 B4 B3 B2 B1 B0
66 42 OPEDA3 OPEDA2 OPEDA1 OPEDA0 FLT3 FLT2 FLT1 FLT0
OPEDA[3:0] DAC Operation control
These bits control the DAC operation mode. In operation disable mode, the DAC output is cut off
from DIN with a fade-out sequence, and the internal DAC data is reset. DAC output is forced into
VCOMDA if PSMDA = 1, or DAC output is forced into AGNDDA and goes into a power-down
state if PSMDA = 0. For normal operating mode, a fade-in sequence is applied on the DAC
output in resume process. The serial mode control is effective during operation disable mode. A
wait time greater than t
DACDLY2
is required for the status change because of power-save control
turning on/off.
Default value: 0000.
OPEDA DAC Operation control
xxx0 DAC1/2 normal operation
xxx1 DAC1/2 operation disable with or without power save
xx0x DAC3/4 normal operation
xx1x DAC3/4 operation disable with or without power save
x0xx DAC5/6 normal operation
x1xx DAC5/6 operation disable with or without power save
0xxx DAC7/8 normal operation
1xxx DAC7/8 operation disable with or without power save
FLT[3:0] DAC Digital filter roll-off control
The FLT[3:0] bits allow users to select the digital filter roll-off that is best suited to their
applications. Sharp and Slow filter roll-off selections are available. The filter responses for these
selections are shown in the Typical Characteristics section of this data sheet.
Default value: 0000.
FLT DAC Digital filter roll-off control
xxx0 DAC1/2 sharp roll-off
xxx1 DAC1/2 slow roll-off
xx0x DAC3/4 sharp roll-off
xx1x DAC3/4 slow roll-off
x0xx DAC5/6 sharp roll-off
x1xx DAC5/6 slow roll-off
0xxx DAC7/8 sharp roll-off
1xxx DAC7/8 slow roll-off
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