Datasheet

TLV320AIC3120
www.ti.com
SLAS653A FEBRUARY 2010REVISED MAY 2012
Page 0 / Register 93 (0x5D): AGC Gain-Applied Reading
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7–D0 R XXXX XXXX 1110 1000: ADC channel AGC gain = –12 dB
1110 1001: ADC channel AGC gain = –11.5 dB
...
0000 0000: ADC channel AGC gain = 0 dB
...
0111 0110: ADC channel AGC gain = 59 dB
0111 0111: ADC channel AGC gain = 59.5 dB
Page 0 / Register 94 (0x5E) Through Page 0 / Register 101 (0x65): Reserved
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7–D0 R/W XXXX XXXX Reserved. Do not write to these registers.
Page 0 / Register 102 (0x66): ADC DC Measurement 1
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7 R/W 0 0: DC measurement is disabled for mono ADC channel.
1: DC measurment is enabled for mono ADC channel.
D6 R/W 0 Reserved. Write only reset value.
D5 R/W 0 0: DC measurement is done based on first-order sinc filter with averaging of 2
D
.
1: DC measurment is done based on first-order low-pass IIR filter whose coefficients are calculated
based on D value.
D4–D0 R/W 0 0000 DC Meaurement D setting:
0 0000: Reserved. Do not use.
0 0001: D = 1
0 0010: D = 2
...
1 0011: D = 19
1 0100: D = 20
1 0101 to 1 1111: Reserved. Do not use.
Page 0 / Register 103 (0x67): ADC DC Measurement 2
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7 R/W 0 Reserved. Write only reset value.
D6 R/W 0 0: DC measurement data update is enabled.
1: DC measurment data update is disabled. User can read the last updated data without any data
corruption.
D5 R/W 0 0: For IIR based DC measurement, the measurment value is the instantaneous output of the IIR filter
1: For IIR based DC measurement, the measurment value is update before periodic clearing of the IIR
filter
D4–D0 R/W 0 0000 IIR-Based DC Measurment, Average Time Setting:
0 0000: Infinite average is used.
0 0001: Averaging time is 2
1
ADC modulator clock periods.
0 0010: Averaging time is 2
2
ADC modulator clock periods.
...
1 0011: Averaging time is 2
19
ADC modulator clock periods.
1 0100: Averaging time is 2
20
ADC modulator clock periods.
1 0101 to 1 1111: Reserved. Do not use.
Page 0 / Register 104 (0x68): ADC DC Measurement Output 1
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7–D0 R 0000 0000 ADC DC Measurement Output (23:16)
Page 0 / Register 105 (0x69): ADC DC Measurement Output 2
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7–D0 R 0000 0000 ADC DC Measurement Output (15:8)
Copyright © 2010–2012, Texas Instruments Incorporated REGISTER MAP 101
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