CS43L21-DNZ Cirrus Logic Inc, CS43L21-DNZ Datasheet - Page 44
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CS43L21-DNZ
Manufacturer Part Number
CS43L21-DNZ
Description
CS43L21-DNZ MS Audio Portable Part.
Manufacturer
Cirrus Logic Inc
Datasheet
1.CS43L21-CNZ.pdf
(63 pages)
Specifications of CS43L21-DNZ
Number Of Bits
24
Data Interface
Serial
Number Of Converters
2
Voltage Supply Source
Analog and Digital
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
32-QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
598-1282 - BOARD EVAL FOR CS43L21 DAC
Power Dissipation (max)
-
Settling Time
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
44
6.7
Note: The DATA_SEL[1:0] bits in reg09h must be set to ‘01’b to enable function control in this register.
PCMMIXx
MUTE_
7
Soft Ramp
Soft Ramp allows level changes, either by gain changes, attenuation changes or muting, to be implemented
by incrementally ramping, in 1/8 dB steps, from the current level to the new level at a rate of 0.5 dB per 4
left/right clock periods.
Soft Ramp on Zero Crossing
This setting dictates that signal-level changes, either by gain changes, attenuation changes or muting, will
occur in 1/8 dB steps and be implemented on a signal zero crossing. The 1/8 dB level change will occur
after a timeout period between 512 and 1024 sample periods (10.7 ms to 21.3 ms at 48 kHz sample rate) if
the signal does not encounter a zero crossing. The zero cross function is independently monitored and im-
plemented for each channel. Note: The LIM_SRDIS bit is ignored.
PCMX Mixer Volume Control:
PCMA (Address 10h) & PCMB (Address 11h)
PCMX Mixer Channel Mute (MUTE_PCMMIXX)
Default = 1
0 - Disabled
1 - Enabled
Function:
The PCM channel X input to the output mixer will mute when enabled. The muting function is affected by
the DACX Soft and Zero Cross bits (DACX_SZC[1:0]).
PCMX Mixer Volume Control (PCMMIXX_VOL[6:0])
Default: 000 0000
Function:
The level of the PCMX input to the output mixer can be adjusted in 0.5 dB increments as dictated by the
DACX Soft and Zero Cross bits (DACX_SZC[1:0]) from +12 to -51.5 dB. Levels are decoded as described
in the table above.
Binary Code
001 1000
000 0000
001 1001
111 1111
111 1110
PCMMIXx_
···
···
VOL6
6
PCMMIXx_
VOL5
Volume Setting
5
+12.0 dB
-51.5 dB
-0.5 dB
-1.0 dB
0 dB
···
···
PCMMIXx_
VOL4
4
PCMMIXx_
VOL3
3
PCMMIXx_
VOL2
2
PCMMIXx_
VOL1
1
CS43L21
PCMMIXx_
DS723A1
VOL0
0