CS42L51-CNZR Cirrus Logic Inc, CS42L51-CNZR Datasheet - Page 67

• Manufacturer Part Number: CS42L51-CNZR
• Description: IC LV Stereo Codec F/Digital Audio Apps
• Manufacturer: Cirrus Logic Inc
• Type: Stereo Audior

Specifications of CS42L51-CNZR

• Data Interface: PCM Audio Interface
• Resolution (bits): 24 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: Yes
• Dynamic Range, Adcs / Dacs (db) Typ: 98 / 98
• Voltage - Supply, Analog: 1.8V, 2.5V
• Voltage - Supply, Digital: 1.8V, 2.5V
• Operating Temperature: -10°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 32-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1005 - BOARD EVAL FOR CS42L51 CODEC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q3956082

DS679A2
6.22
NOTE: The DATA_SEL[1:0] bits in reg09h must be set to ‘01’b to enable function control in this register.
6.23
ALC_ENB
Reserved
7
7
Limiter RELEASE Rate (RRATE[5:0])
Default: 111111
Function:
Sets the rate at which the limiter releases the digital attenuation from levels below the minimum setting in
the limiter threshold register, and returns the analog output level to the AOUTx_VOL[7:0] setting.
The limiter release rate is user selectable but is also a function of the sampling frequency, Fs, and the
DAC_SZC setting unless the disable bit is enabled.
Limiter Attack Rate Register (Address 1Bh)
Limiter Attack Rate (ARATE[5:0])
Default: 000000
Function:
Sets the rate at which the limiter attenuates the analog output from levels above the maximum setting in the
limiter threshold register.
The limiter attack rate is user-selectable but is also a function of the sampling frequency, Fs, and the
DAC_SZC setting unless the disable bit is enabled.
ALC Enable & Attack Rate (Address 1Ch)
ALC Enable (ALC_ENX)
Default: 0
0 - Disabled
1 - Enabled
Function:
Enables automatic level control for ADC channel x.
Note:
Binary Code
Binary Code
000000
111111
000000
111111
ALC_ENA
When the ALC is enabled, the Attenuator and PGA volume is automatically controlled and should
not be adjusted manually.
Reserved
···
···
6
6
ALC_ARATE5 ALC_ARATE4 ALC_ARATE3 ALC_ARATE2 ALC_ARATE1 ALC_ARATE0
ARATE5
5
5
Slowest Release
Fastest Release
Release Time
Slowest Attack
Attack Time
Fastest Attack
···
···
ARATE4
4
4
ARATE3
3
3
ARATE2
2
2
ARATE1
1
1
CS42L51
ARATE0
0
0
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