PA7468

DESCRIPTION

As an audio power amplifier with DC volume control, UTC

PA7468 is a stereo bridged audio power amplifier. In normal operation

it can produce 2.6Ω (1.8W) into 4W with less than 10% (1.0%)

THD+N.

In UTC PA7468, the attenuator range of the volume control is

from 20dB (@DC_V OL =0V) to -80dB (@DC_V OL =3.54V) with 32

steps. Besides, the UTC PA7468 includes the depop circuitry and the

thermal shutdown protection circuitry (to reduce pops and clicks noise

during power up or shutdown mode operation).

The UTC PA7468 has a BTL mode for speaker drive and a SE

mode for headphone drive. These tow modes can be quickly chosen

by the SE/ BTL input control pin signal.

FEATURES

* Low Operating Current: 9mA

*Two Output Modes Allowable with BTL and SE Modes(chosen by

SE/ BTL pin)

*Low Current Consumption :1mA(in Shutdown Mode)

*With Short Circuit Protection

*With Thermal Shutdown Protection

*With Over Current Protection Circuitry

*Eliminating Turn-on and Turn-off Transients in Outputs by Improved

Depop Circuitry to.

*Very High PSRR

*32 Steps Volume Adjustable

*BTL Mode :2.6W per Channel Output Power into 4Ω Load at 5V

规格书PA7468