TAC5412-Q1中文资料Automotive stereo audio codec with 110-dB dynamic range ADC, 120-dB DAC, HV-input and diagnostics数据手册TI规格书

描述 Description

The TAC5412-Q1 is a high performance Stereo Codec with 10VRMS differential Input, 108dB Stereo ADC and 2VRMS Stereo DAC Channels. The TAC5412-Q1 supports both differential and Single Ended input and output. Device supports both Microphone and Line In input on ADC Channel. DAC Output can be configured for either Line Out or Head Phone Load. TAC5412-Q1 can drive up to 62.5mW into a Headphone Load. The device also offers an integrated high-voltage, programmable microphone bias, and input diagnostic circuitry that allows direct connection to microphone-based automotive systems with full fault diagnostic capability for direct-coupled inputs. The TAC5412-Q1 integrates an efficient boost converter to generate a high voltage microphone bias using an external, low-voltage, 3.3V supply, The device can also directly use an external high-voltage supply (HVDD), which is a readily available supply in the system to generate the high-voltage, programmable microphone bias. The TAC5412-Q1 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. It allows for sample rates up to 768kHz. The TAC5412-Q1 supports time-division multiplexing (TDM), I2S, or left-justified (LJ) audio formats, and can be controlled with I2C. These integrated high-performance features, along with a single, 3.3V supply operation, makes TAC5412-Q1 an excellent choice for space-constrained automotive systems.

特性 Features

AEC-Q100 qualified for automotive applications

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





ADC Channel

Performance:

Line differential input dynamic range: 108dB

Mic differential input dynamic range: 108dB

THD+N: –95dB

Channel summing mode supports high SNR



Input voltage:

Differential, 10-VRMS full-scale inputs

Single-ended, 5-VRMS full-scale inputs



Sample rate (fS) = 8kHz to 768kHz

Programmable microphone bias (5V to 10V):

With an integrated efficient boost converter, or

With external high voltage HVDD supply



Programmable microphone input fault diagnostics:

Open inputs or shorted inputs

Short to ground, MICBIAS or VBAT

Microphone bias over current protection







DAC Channel

DAC performance:

DAC to Line Out Dynamic Range: 119dB

DAC to HP Out Dynamic Range: 115dB

THD+N: –95dB



Head Phone/Line Out output voltage:

Differential, 2-VRMS full-scale

Single-ended, 1-VRMS full-scale



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



Common Features

Low Latency Filter Selection

Programmable HPF and Biquad Filters

I2C Control Interface

Audio Serial Interface

Format: TDM, I2S or Left Justified

Word Length: 16,20,24 or 32 Bits



Programmable PLL for Flexible Clocking

Single Supply Operation: 3.3V

I/O Supply Operation: 1.2V, 1.8V or 3.3V