PTAS6582QPHDRQ1中文資料德州儀器數(shù)據(jù)手冊PDF規(guī)格書

1 Features

? AEC-Q100 qualified for automotive applications

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

? General operation

– 4.5-V to 45-V supply voltage, 50-V load dump

– Support for 1.8-V and 3.3-V I/O’s

– I2C control with 8 address options

– <1.3 W idle power loss at 14.4 V, <8-uA max

VBAT+PVDD shutdown loss

? Integrated DSP processing

– Class-H supply voltage control

– Thermal monitoring and foldback

– Clip detection, PVDD monitoring and foldback

? Output current sensing by channel via I2S/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

? DC and AC Standby load diagnostics

? Audio inputs

– 2 channel I2S or 4-16 channel TDM input

– Input sample rates: 44.1, 48, 96, 192 kHz

– Secondary low latency path, >70 reduced

signal delay at 48 kHz

? Audio outputs

– 2-channel bridge-tied load (BTL), configurable

1-channel parallel BTL (PBTL)

– 384-kHz to 2.1-MHz configurable output

switching frequency

– Up to 10-A channel output current

– 400-VA peak BTL output power

– 118 W (45 V, 8 Ω, 1 THD, BTL)

– 215 W (45 V, 4 Ω, 1 THD, BTL)

? Audio Performance

– THD+N 0.03 (8 Ω, 1 W, 1 kHz)

– 111 dB SNR

– 37 μV (14.4 V), 80 μV (45 V) output noise

? Protection

– Output short protection

– DC offset, undervoltage and overvoltage

– Configurable overtemperature warning and

individual channel shutdown

– I2C temperature and supply voltage readout

? Easily meet CISPR25-L5 EMC specification

– Advanced spread-spectrum

2 Applications

? Automotive external amplifier

? Automotive head unit

3 Description

The TAS6582-Q1 is a two-channel, digital-input, highvoltage,

Class-D audio amplifier that supports up

to 45-V supply voltage. In combination with up to

10-A output current, this device delivers maximum

output power and high fidelity audio in high and low

impedance loads. The device provides two channels

at 118 W (45 V, 8 Ω, 1 THD, BTL) and 215 W (45 V,

4 Ω, 1 THD, BTL).

The TAS6582-Q1 integrates DC and AC load

diagnostics to determine the status of the connected

loads before enabling the output stage. During audio

playback, the status can be monitored through output

current sense which is available for each channel and

reports the measurement to a host processor through

TDM with minimal delay. The device monitors the

output load condition while playing audio using realtime

load diagnostics which operate independent from

host and audio input.

To optimize system efficiency, the integrated DSP of

the TAS6582-Q1 enables Class-H envelope tracking

control, eliminating the need for development of

complex tracking software and making local boost

voltage control possible without the need for an

external microcontroller.

The TAS6582-Q1 device features an additional lowlatency

signal path for each channel, providing up to

70 faster signal processing at 48 kHz which enables

time-sensitive Active Noise Cancellation (ANC), Road

Noise Cancellation (RNC) applications.

The device is offered in a 64-pin QFP package with

the exposed thermal pad up.