Automotive, 45V, 13A, digital-input, two-channel Class-D audio amplifier with current sense | PHD | 64 | -40 to 125

The TAS6682-Q1 is a two-channel,

digital-input, high-voltage, Class-D audio amplifier that supports

up to 45V supply voltage. Combined with up to 13A output current,

this device delivers maximum output power and high fidelity audio in

high and low impedance loads. The device provides two channels at

118W (45V, 8Ω, 1% THD+N, BTL) and 218W (45V, 4Ω, 1% THD+N, BTL).

The TAS6682-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 the output current sense and temperature of

each channel 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

real-time load diagnostics which operate independently from the host

and audio input.

To optimize system efficiency, the integrated DSP of the TAS6682-Q1

enables Class-H envelope tracking control, eliminating the need for

complex tracking software and making local boost voltage control

possible without an external microcontroller.

The TAS6682-Q1 device features an

additional low-latency signal path for each channel, providing up to

70% faster signal processing at 48kHz and support an audio signal

path latency of < 100us at 96kHz sample rate, which enables

time-sensitive active noise cancellation (ANC), road noise

cancellation (RNC) applications.

The TAS6682-Q1 is offered in a 64-pin

QFP package with the exposed thermal pad up, pin-to-pin, and

software compatible with TAS6684A-Q1.