TLV320AIC26_07 Datasheet, PDF (40/74 Pages) Texas Instruments – LOW POWER STEREO AUDIO CODEC WITH HEADPHONE/SPEAKER AMPLIFIER AND 12-BIT BATTERY / TEMPERATURE / AUXILIARY ADC

TLV320AIC26
SLAS412− DECEMBER 2003
PAGE 2 CONTROL REGISTER MAP
REGISTER 00H: Audio Control 1
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BIT
D15−D14
NAME
ADCHPF
D13−D12 ADCIN
D11−D10
WLEN
D9−D8
DATFM
D7−D6
D5−D3
DACFS
D2−D0
ADCFS
READ/ RESET
WRITE VALUE
FUNCTION
R/W
00 ADC High Pass Filter
00 => Disabled
01 => −3dB point = 0.0045 x Fs
10 => −3dB point = 0.0125 x Fs
11 => −3dB point = 0.025 x Fs
Note: Fs is ADC sample rate
R/W
00 ADC Input Mux
00 => ADC Input = Single-ended input MIC
01 => ADC Input = Single-ended input AUX
10 => ADC Input = Differential input MICIN and AUX
11 => ADC Input = Differential input MICIN and AUX
R/W
00 Codec Word Length
00 => Word length = 16 bit
01 => Word length = 20 bit
10 => Word length = 24 bit
11 => Word length = 32 bit
R/W
00 Digital Data Format
00 => I2S mode
01 => DSP mode
10 => Right justified
11 => Left justified
Note: Right justified, valid only when the ratio between DAC and ADC sample rate is an integer.
e.g., ADC = 32 kHz and DAC = 24 kHz or vice-versa is invalid for right-justified mode.
R
00 Reserved
R/W
000 DAC Sampling Rate
000 => DAC FS = Fsref/1
001 => DAC FS = Fsref/(1.5)
010 => DAC FS = Fsref/2
011 => DAC FS = Fsref/3
100 => DAC FS = Fsref/4
101 => DAC FS = Fsref/5
110 => DAC FS = Fsref/(5.5)
111 => DAC FS = Fsref/6
Note: Fsref can be set between 39 kHz and 53 kHz
R/W
000 ADC Sampling Rate
000 => ADC FS = Fsref/1
001 => ADC FS = Fsref/(1.5)
010 => ADC FS = Fsref/2
011 => ADC FS = Fsref/3
100 => ADC FS = Fsref/4
101 => ADC FS = Fsref/5
110 => ADC FS = Fsref/(5.5)
111 => ADC FS = Fsref/6
Note: Fsref can be set between 39 kHz and 53 kHz
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