描述 Description

The TAC5212 is a high performance Stereo Codec with 2 VRMS differential Input, 118 dB Stereo ADC and 2 VRMS Stereo DAC. The TAC5212 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. TAC5212 can drive up to 62.5 mW into a Headphone Load. The TAC5212 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 TAC5212 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 TAC5212 an excellent choice for space-constrained audio applications.

特性 Features

? ADC channel
? Stereo high performance ADC
? Performance:
? Line differential input dynamic range: 118 dB
? Mic differential input dynamic range: 118 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: 119 dB
? DAC to HP out dynamic range: 115 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