CDB53L21 Cirrus Logic Inc, CDB53L21 Datasheet - Page 54

• 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

54
6.16
NG_ALL
7
Noise Gate Configuration & Misc. (Address 1Fh)
Noise Gate Channel Gang (NG_ALL)
Default: 0
0 - Disabled
1 - Enabled
Function:
Gangs the noise gate function for channel A and B. When enabled, both channels must fall below the thresh-
old setting for the noise gate attenuation to take effect.
Noise Gate Enable (NG_EN)
Default: 0
0 - Disabled
1 - Enabled
Function:
Enables the noise gate. Maximum attenuation is relative to all gain settings applied.
Noise Gate Boost (NG_BOOST) and Threshold (THRESH[3:0])
Default: 000
Function:
Sets the threshold level of the noise gate. Input signals below the threshold level will be attenuated to -96
dB. NG_BOOST = ‘1’b adds 30 dB to the threshold settings.
Noise Gate Delay Timing (NGDELAY[1:0])
Default: 00
00 - 50 ms
01 - 100 ms
10 - 150 ms
11 - 200 ms
Function:
Sets the delay time before the noise gate attacks. Noise gate attenuation is dictated by the SOFTx &
ZCROSS bit settings unless the disable bit for each function is enabled.
THRESH[2:0]
NG_EN
000
001
010
100
101
011
110
111
6
NG_BOOST
(NG_BOOST = ‘0’b)
Minimum Setting
5
Reserved
Reserved
-64 dB
-67 dB
-70 dB
-73 dB
-76 dB
-82 dB
THRESH2
4
(NG_BOOST = ‘1’b)
Minimum Setting
THRESH1
-34 dB
-37 dB
-40 dB
-43 dB
-46 dB
-52 dB
-58 dB
-64 dB
3
THRESH0
2
NGDELAY1
1
CS53L21
NGDELAY0
DS700PP1
0