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WM8962B Datasheet(PDF) 217 Page - Wolfson Microelectronics plc

Part # WM8962B
Description  Ultra-Low Power Stereo CODEC with Audio Enhancement DSP, 1W Stereo Class D Speaker Drivers and Ground Referenced Headphone Drivers
PDF  295 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8962B Datasheet(HTML) 217 Page - Wolfson Microelectronics plc

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WM8962
Rev 4.3
217
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R18 (12h)
ALC2
15
ALC_LOCK_ST
S
0
Readback of the ALC Lock Status.
Set when ADC signal = ALC_LVL
14
ALC_THRESH_
STS
0
Readback of the ALC Threshold Level status (when
ALC_LOCK_STS = 0)
0 = ADC signal < ALC_LVL
1 = ADC signal > ALC_LVL
13
ALC_SAT_STS
0
Readback of the ALC saturation status.
0 = ADC signal = ALC_LVL
1 = ADC signal < ALC_LVL but maximum ALC Gain has
been reached
12
ALC_PKOVR_S
TS
0
Readback of the ALC Peak Limiter Overload status.
Set when ADC input signal exceeds -1.16dBFS
11
ALC_NGATE_S
TS
0
Readback of the ALC Noise Gate status.
0 = ADC input signal level > ALC_NGATE_THR
1 = ADC input signal level < ALC_NGATE_THR
7
ALC_ZC
0
ALC Zero Cross Detector
0 = Change gain immediately
1 = Change gain on zero cross only
6:4
ALC_MINGAIN
[2:0]
000
Minimum ALC gain
000 = -23.25dB
001 = -17.25dB
010 = -11.25dB
011 = -5.25dB
100 = +0.75dB
101 = +6.75dB
110 = +12.75dB
111 = +18.75dB
3:0
ALC_HLD [3:0]
0000
ALC Hold time before the gain ramp-up starts
0000 = 0.00ms
0001 = 2.67ms
0010 = 5.33ms
0011 = 10.7ms
0100 = 21.3ms
0101 = 42.7ms
0110 = 85.3ms
0111 = 171ms
1000 = 341ms
1001 = 683ms
1010 = 1.37s
1011 = 2.73s
1100 = 5.46s
1101 = 10.9s
1110 = 21.8s
1111 = 43.7s
Register 12h ALC2



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