Datasheet
Table Of Contents
- FEATURES
- DESCRIPTION
- DEVICE INFORMATION
- ABSOLUTE MAXIMUM RATINGS
- DISSIPATION RATINGS
- RECOMMENDED OPERATING CONDITIONS
- ELECTRICAL CHARACTERISTICS
- TYPICAL CHARACTERISTICS
- OVERVIEW
- HARDWARE RESET
- DIGITAL CONTROL SERIAL INTERFACE
- I2C CONTROL INTERFACE
- DIGITAL AUDIO DATA SERIAL INTERFACE
- RIGHT JUSTIFIED MODE
- LEFT JUSTIFIED MODE
- I2S MODE
- DSP MODE
- TDM DATA TRANSFER
- AUDIO DATA CONVERTERS
- AUDIO CLOCK GENERATION
- STEREO AUDIO ADC
- AUTOMATIC GAIN CONTROL (AGC)
- STEREO AUDIO DAC
- DIGITAL AUDIO PROCESSING
- DIGITAL INTERPOLATION FILTER
- DELTA-SIGMA AUDIO DAC
- AUDIO DAC DIGITAL VOLUME CONTROL
- ANALOG OUTPUT COMMON-MODE ADJUSTMENT
- AUDIO DAC POWER CONTROL
- AUDIO ANALOG INPUTS
- ANALOG INPUT BYPASS PATH FUNCTIONALITY
- ADC PGA SIGNAL BYPASS PATH FUNCTIONALITY
- INPUT IMPEDANCE AND VCM CONTROL
- PASSIVE ANALOG BYPASS DURING POWER DOWN
- MICBIAS GENERATION
- ANALOG FULLY DIFFERENTIAL LINE OUTPUT DRIVERS
- ANALOG HIGH POWER OUTPUT DRIVERS
- SHORT CIRCUIT OUTPUT PROTECTION
- CONTROL REGISTERS
- Output Stage Volume Controls
RIGHT_LOP
RIGHT_LOM
LINE1R
LINE2R
SW-R0
SW-R1
SW-R2
LEFT_LOP
LEFT_LOM
LINE1L
LINE2L
SW-L0
SW-L1
SW-L2
MIC1R/LINE1R
LINE1R
MIC2R/LINE2R
LINE2R
MIC1L /LINE1L
LINE1L
MIC2L /LINE2L
LINE2L
MICBIAS GENERATION
TLV320AIC32
SLAS479C – AUGUST 2005 – REVISED DECEMBER 2008 .............................................................................................................................................
www.ti.com
In general, connecting two switches to the same output pin should be avoided, as this error shorts two input
signals together, which would likely cause distortion of the signal as the two signal are in contention. Poor
frequency response would also likely occur.
Figure 30. Passive Analog Bypass Mode Configuration
The TLV320AIC32 includes a programmable microphone bias output voltage (MICBIAS), capable of providing
output voltages of 2.0 V or 2.5 V (both derived from the on-chip bandgap voltage) with 4-mA output current drive.
In addition, the MICBIAS may be programmed to be switched to AVDD directly through an on-chip switch, or it
can be powered down completely when not needed, for power savings. This function is controlled by register
programming in Page-0/Reg-25.
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Product Folder Link(s): TLV320AIC32