Datasheet
PCM5141, PCM5142
SLAS759A –AUGUST 2012–REVISED SEPTEMBER 2012
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FSSP[1:0] f
S
Speed Mode
These bits select the f
S
operation mode, which must be set according to the current audio sampling rate. These
bits are ignored in clock auto set mode.
Default value: 00
00: Single speed (f
S
= 48 kHz)
01: Double speed (48 kHz < f
S
= 96 kHz)
10: Quad speed (96 kHz < f
S
= 192 kHz)
11: Octal speed (192 kHz < f
S
= 384 kHz)
Page 0 / Register 35
Dec Hex b7 b6 b5 b4 b3 b2 b1 b0
35 23 IDAC15 IDAC14 IDAC13 IDAC12 IDAC11 IDAC10 IDAC9 IDAC8
Reset Value 0 0 0 0 0 0 0 1
Page 0 / Register 36
36 24 IDAC7 IDAC6 IDAC5 IDAC4 IDAC3 IDAC2 IDAC1 IDAC0
Reset Value 0 0 0 0 0 0 0 0
IDAC[15:0] IDAC (MSB)
These bits specify the number of DSP clock cycles available in one audio frame. The value should match the
DSP clock f
S
ratio. These bits are ignored in clock auto set mode.
Default value: 0000000100000000
Page 0 / Register 37
Dec Hex b7 b6 b5 b4 b3 b2 b1 b0
37 25 RSV IDFS IDBK IDSK IDCH IDCM DCAS IPLK
Reset Value 0 0 0 0 0 0 0
RSV Reserved
Reserved. Do not access.
IDFS Ignore f
S
Detection
This bit controls whether to ignore the f
S
detection. When ignored, f
S
error will not cause a clock error.
Default value: 0
0: Regard f
S
detection
1: Ignore f
S
detection
IDBK Ignore BCK Detection
This bit controls whether to ignore the BCK detection against LRCK. The BCK must be stable between 32f
S
and 256f
S
inclusive or an error will be reported. When ignored, a BCK error will not cause a clock error.
Default value: 0
0: Regard BCK detection
1: Ignore BCK detection
IDSK Ignore SCK Detection
This bit controls whether to ignore the SCK detection against LRCK. Only some certain SCK ratios within some
error margin are allowed. When ignored, an SCK error will not cause a clock error.
Default value: 0
0: Regard SCK detection
1: Ignore SCK detection
IDCH Ignore Clock Halt Detection
This bit controls whether to ignore the SCK halt (static or frequency is lower than acceptable) detection. When
ignored an SCK halt will not cause a clock error.
Default value: 0
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