PA7493

DESCRIPTION

UTC PA7493 provides precise DC volume control, and a stereo

bridged audio power amplifiers capable of producing 2W into 4Ω as

a monolithic integrated circuit. In stand-by the power consumption

is very low. UTC PA7493 combines a stereo single-end (SE) mode

for headphone drive into a single chip and a stereo bridge-tied

loads (BTL) mode for speaker drive(both modes are easily

switched by the SE/BTL input control signal) to simplify the audio

system design. Package size is not occupies PCB space cause the

built-in over-temperature protection. It is suitable for small or

portable products.

FEATURES

* Stereo switch able bridged/single-ended power amplifiers

* Output power 2W × 2 (V CC =6V, THD=1%, R L =4Ω)

* Low harmonics distortion

* Include 32 steps volume controller by DC voltage with ysteresis

* “Click and pop” suppression circuitry

* Low current consumption in SHUTDOWN Mode(0.7μA)

* Thermal shutdown

规格书PA7493