TAS6501-Q1中文资料德州仪器数据手册PDF规格书

1 Features

• AEC-Q100 qualified for automotive applications

– Temperature grade 1: –40°C to +125°C, TA

• General operation

– 4.5V to 19V supply voltage, 40V load dump

– Support for 1.8V and 3.3V I/O’s

– I2C control with 8 address options

– <0.5W idle power loss at 14.4V, <5uA max

PVDD shutdown loss

• Output current sensing via I2S or TDM

– No need for external circuitry

• Real-time load diagnostics

– Monitor output conditions while playing audio

– Open load, Shorted load, Short-to-power,

Short-to-ground detection

• Integrated DSP processing

– Thermal monitoring and foldback

– PVDD monitoring and foldback

– Clip detection

– Low Latency Path, >70% reduced signal delay

at 48kHz

• DC and AC Standby load diagnostics

• Audio inputs

– I2S and TDM support up to TDM16

– Input sample rates: 16, 32, 44.1, 48, 96,

192kHz

• Audio outputs

– 384kHz to 2MHz configurable output switching

frequency

– 15W (14.4V, 4Ω, 10% THD+N)

• Audio Performance

– THD+N <0.02% (4Ω, 1W, 1kHz)

– 105dB SNR

– Output noise: 41μVRMS at 14.4V, A-weighting

• Protection

– Output short protection

– Speaker GuardTM Pro power limiter

– Configurable overtemperature warning and

shutdown

– I2C temperature and supply voltage readout

– DC offset, undervoltage and overvoltage

• Easily meet CISPR25-L5 EMC specification

– Advanced spread-spectrum

2 Applications

• Acoustic vehicle alerting system (AVAS)

• Emergency call (eCall)

• Automotive head unit

• Telematics control unit

• Automotive cluster display

3 Description

The TAS6501-Q1 is a mono-channel, digital-input,

Class-D audio amplifier that supports 2MHz switching

frequency enabling a cost and size-optimized singlechannel

audio amplifier design. The device operates

from 4.5V to 19V and delivers up to 15W (14.4V, 4Ω,

10% THD+N). The device integrates DC and AC load

diagnostics to determine the status of the connected

load before enabling the output stage. Additionally,

the device can monitor the output load condition while

in PLAY mode with or without audio using real-time

load diagnostics which operates independently from

the host and audio input.

TAS6501-Q1 can monitor the output current, PVDD

voltage, and temperature of the device and can

report this data through TDM or I2S. The integrated

DSP of the TAS6501-Q1 enables advanced protection

features such as PVDD foldback, thermal foldback,

and Speaker Guard™ Pro power limiter. The DSP

also enables an additional low-latency signal path,

providing up to 70% faster signal processing at 48kHz

for time-sensitive Active Noise Cancellation (ANC)

and Road Noise Cancellation (RNC) applications.

The device is available in a small pad-down TSSOP

and QFN with wettable flanks packages, enabling a

heatsink-free audio amplifier design.