CDB53L21 Cirrus Logic Inc, CDB53L21 Datasheet - Page 53

• Manufacturer Part Number: CDB53L21
• Description: BOARD EVAL FOR CS53L21 ADC
• Manufacturer: Cirrus Logic Inc

Specifications of CDB53L21

• Number Of Adc's: 2
• Number Of Bits: 24
• Sampling Rate (per Second): 96k
• Data Interface: Serial
• Inputs Per Adc: 3 Single Ended
• Input Range: ±2.5 V
• Power (typ) @ Conditions: 22.45mW @ 48kSPS, 2.5 V
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -10°C ~ 70°C
• Utilized Ic / Part: CS53L21
• Product: Audio Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 598-1550

DS700PP1
6.15
MAX2
7
Function:
Sets the rate at which the ALC releases the PGA & digital attenuation from levels below the minimum setting
in the ALC threshold register, and returns the input level to the PGA_VOL[4:0] & ADCx_ATT[7:0] setting.
The ALC release rate is user selectable, but is also a function of the sampling frequency, Fs, and the SOFTx
& ZCROSS bit settings unless the disable bit for each function is enabled.
ALC Threshold (Address 1Eh)
Maximum Threshold (MAX[2:0])
Default: 000
Function:
Sets the maximum level, relative to full scale, at which to limit and attenuate the input signal at the attack
rate.
Minimum Threshold (MIN[2:0])
Default: 000
Function:
Sets the minimum level at which to disengage the ALC’s attenuation or amplify the input signal at a rate set
in the release rate register until levels again reach this minimum threshold. The ALC uses this minimum as
a hysteresis point for the input signal as it maintains the signal below the maximum as well as below the
minimum setting. This provides a more natural sound as the ALC attacks and releases.
MAX[2:0] Threshold
MIN[2:0]
000
001
010
100
101
000
001
010
100
101
011
110
111
011
110
111
MAX1
6
Threshold
Setting
Setting
(dB)
(dB)
-12
-18
-24
-30
-12
-18
-24
-30
-3
-6
-9
-3
-6
-9
0
0
MAX0
5
MIN2
4
MIN1
3
MIN0
2
Reserved
1
CS53L21
Reserved
0
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