描述 Description

The TAC5112 is a low power Stereo Codec with 2 VRMS differential Input, 100 dB Stereo ADC and 2 VRMS Stereo DAC. The TAC5112 supports both differential and Single-ended input and output. The device supports both Microphone and Line In input on the ADC Channel. DAC Output can be configured for either Line Out or Head Phone Load. TAC5112 can drive up to 62.5 mW into a Headphone Load. The TAC5112 integrates programable channel gain, digital volume control, a low-jitter phase-locked loop (PLL), a programmable high-pass filter (HPF), programmable EQ and biquad filters, low-latency filter modes, and allows for sample rates up to 768 kHz. The TAC5112 supports time-division multiplexing (TDM), I2S, or left-justified (LJ) audio formats, and can be controlled with I2C or SPI. These integrated high-performance features, along with a single supply operation, makes TAC5112 an excellent choice for space-constrained audio applications.

特性 Features

ADC channel

Stereo high performance ADC

Performance:

Line differential input dynamic range: 100 dB

Mic differential input dynamic range: 100 dB

THD+N: –95 dB

Channel summing mode supports high SNR



Input voltage:

Differential, 2-VRMS full-scale inputs

Single-ended, 1-VRMS full-scale inputs



Input mix / mux options

Sample rate (fS) = 8 kHz to 768 kHz

Programmable microphone bias (Up to 3V)





DAC channel

Stereo high performance DAC

DAC performance:

DAC to line out dynamic range: 106 dB

DAC to HP out dynamic range: 106 dB

THD+N: –95 dB



Head phone / line Out output voltage:

Differential, 2-VRMS full-scale

Single-ended, 1-VRMS full-scale



DAC sample Rates (fs) = 8 KHz to 768 KHz



Common features

Up to 4 record channels

2 Channel analog + 2 channel digital

1 Channel analog + 3 channel digital

4 Channel digital



Analog input to output by-pass

Voice activity detection

Battery protection

Signal distortion limiter

Thermal foldback

Low latency filter selection

Programmable HPF and biquad filters

I2C & SPI control interface

Audio serial interface

Format: TDM, I2S or left justified

Word length: 16,20,24 or 32 bits



Programmable PLL for flexible clocking

Low power modes

TBD mW for playback

TBD mW for record



Single supply operation: 1.8 V or 3.3 V

I/O supply operation: 1.2 V or 1.8 V or 3.3 V

Temperature grade 1: –40°C ≤ TA ≤ +125°C