Datasheet

TLV320AIC3100
www.ti.com SLAS667A –NOVEMBER 2009–REVISED MAY 2012
Page 0 / Register 89: AGC Attack Time
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7–D3 R/W 0000 0 0000 0: AGC attack time = 1 × (32/f
S
), where f
S
is the ADC sample rate
0000 1: AGC attack time = 3 × (32/f
S
), where f
S
is the ADC sample rate
0001 0: AGC attack time = 5 × (32/f
S
), where f
S
is the ADC sample rate
0001 1: AGC attack time = 7 × (32/f
S
), where f
S
is the ADC sample rate
0010 0: AGC attack time = 9 × (32/f
S
), where f
S
is the ADC sample rate
...
1111 0: AGC attack time = 61 × (32/f
S
), where f
S
is the ADC sample rate
1111 1: AGC attack time = 63 × (32/f
S
), where f
S
is the ADC sample rate
D2–D0 R/W 000 000: Multiply factor for the programmed AGC attack time = 1
001: Multiply factor for the programmed AGC attack time = 2
010: Multiply factor for the programmed AGC attack time = 4
...
111: Multiply factor for the programmed AGC attack time = 128
Page 0 / Register 90: AGC Decay Time
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7–D3 R/W 0000 0 0000 0: AGC decay time = 1 × (512/f
S
)
0000 1: AGC decay time = 3 × (512/f
S
)
0001 0: AGC decay time = 5 × (512/f
S
)
0001 1: AGC decay time = 7 × (512/f
S
)
0010 0: AGC decay time = 9 × (512/f
S
)
...
1111 0: AGC decay time = 61 × (512/f
S
)
1111 1: AGC decay time = 63 × (512/f
S
)
D2–D0 R/W 000 000: Multiplication factor for the programmed AGC decay time = 1
001: Multiplication factor for the programmed AGC decay time = 2
010: Multiplication factor for the programmed AGC decay time = 4
...
111: Multiplication factor for the programmed AGC decay time = 128
Page 0 / Register 91: AGC Noise Debounce
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7–D5 R/W 000 Reserved. Write only zeros to these bits.
D4–D0 R/W 0 0000 0 0000: AGC noise debounce = 0/f
S
0 0001: AGC noise debounce = 4/f
S
0 0010: AGC noise debounce = 8/f
S
0 0011: AGC noise debounce = 16/f
S
0 0100: AGC noise debounce = 32/f
S
0 0101: AGC noise debounce = 64/f
S
0 0110: AGC noise debounce = 128/f
S
0 0111: AGC noise debounce = 256/f
S
0 1000: AGC noise debounce = 512/f
S
0 1001: AGC noise debounce = 1024/f
S
0 1010: AGC noise debounce = 2048/f
S
0 1011: AGC noise debounce = 4096/f
S
0 1100: AGC noise debounce = 2 × 4096/f
S
0 1101: AGC noise debounce = 3 × 4096/f
S
0 1110: AGC noise debounce = 4 × 4096/f
S
...
1 1110: AGC noise debounce = 20 × 4096/f
S
1 1111: AGC noise debounce = 21 × 4096/f
S
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