CS4222-KS Cirrus Logic Inc, CS4222-KS Datasheet - Page 20

• Manufacturer Part Number: CS4222-KS
• Description: Audio CODECs IC 20-Bit Stereo Codec w/Vol Cntrl
• Manufacturer: Cirrus Logic Inc

Specifications of CS4222-KS

• Number Of Adc Inputs: 2
• Number Of Dac Outputs: 2
• Conversion Rate: 48 KSPs
• Interface Type: Serial (I2C, SPI)
• Resolution: 20 bit
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Package / Case: SSOP-28
• Minimum Operating Temperature: - 10 C
• Number Of Channels: 2 ADC, 2 DAC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Output Attenuator Data Byte (3, 4)
ATT7-ATT0
This register defaults to 00h.
DSP Port Mode Byte (5)
DEM2-0
DSCK
DDO
DDI2-DDI0
This register defaults to 00h.
20
DEM2 DEM1 DEM0 DSCK DDO DDF2 DDF1 DDF0
ATT7 ATT6 ATT5 ATT4 ATT3 ATT2 ATT1 ATT0
B7
B7
B6
B6
Sets attenuator level
0 - No attenuation
227 - 113.5 dB attenuation
>227 - DAC muted
ATT0 represents 0.5 dB of attenuation
Selects de-emphasis control source
0 - De-emphasis controlled by pins
1 - 44.1 kHz de-emphasis setting
2 - 48 kHz de-emphasis setting
3 - 32 kHz de-emphasis setting
4 - De-emphasis disabled
5 - Not used
6 - Not used
7 - Not used
Set the polarity of clocking data
0 - Data valid on rising edge of SCLK
1 - Data valid on falling edge of SCLK
Data output format
0 - I
1 - Left justified
Data input format
0 - I
1 - Left justified
2 - Right justified, 20-bit
3 - Right justified, 18-bit
4 - Right justified, 16-bit
5 - Not used
6 - Not used
7 - Not used
B5
B5
2
2
S compatible
S compatible
B4
B4
B3
B3
B2
B2
B1
B1
B0
B0
Converter Status Report Byte (Read Only) (6)
ACCR-ACCL Acceptance bit
LVL2-0,LVR2-0 Left and Right ADC output level
LVL2-0 and LVR2-0 bits are ’sticky’. They constantly
monitor the ADC output for the peak levels and hold
the maximum output. They are reset to 0 when read.
This register is read only.
ACCR ACCL LVR2 LVR1 LVR0 LVL2
B7
B6
0 - ATT7-0 has been accepted
1 - New setting waiting for zero crossing
0 - Normal output levels
1 - -6 dB level
2 - -5 dB level
3 - -4 dB level
4 - -3 dB level
5 - -2 dB level
6 - -1 dB level
7 - Clipping
B5
B4
B3
B2
CS4222
LVL2
B1
DS236PP3
LVL0
B0