TDA7801SM

数字输入四路功放与内置的诊断功能 Digital input quad power amplifier with built-in diagnostics features

Description

The TDA7801 is a new BCD technology quad bridge amplifier for car audio applications. Thanks to the BCD6 technology it is possible to integrate a high performance D/A converter together with powerful MOSFET outputs. The possibility of having the D/A conversion on board allows the performance to reach an outstanding 115 dB S/N ratio with more than 105 dB of dynamic range.

Features

■ Integrated 110 dB D/A conversion

■ I2S digital input 3.3/1.8 V with TDM option

■ Selectable input sampling frequency: 44.1 kHz, 48 kHz, 96 kHz, 192 kHz

■ MOSFET power outputs

■ High output power capability 4x28 W/ 4Ω@ 14.4 V, 1 kHz, 10 % THD

■ Max. output power 4x72 W/2Ω

■ Full I2C bus driving 3.3/5 V:

    – Independent front/rear soft play/ mute

    – Selectable gain four levels for very low noise line-out function

    –I2C bus digital diagnostics including DC and AC load detection

■ Two I2C bus addresses and 8-ch TDM mode only in PowerSO package

■ Optional non I2C bus mode

■ Offset detector play or mute mode

■ Clipping detector selectable level and independent front/rear and diagnostics pin

■ CMOS compatible enable pin 3.3/5 V

■ Full fault protection

■ Four independent short circuit protections

■ Thermal protection four levels

■ ESD protection