PA7493 Datasheet, PDF (1/7 Pages) Unisonic Technologies – 2W X 2 CLASS AB AUDIO POWER AMPLIFIER (WITH DC_VOLUME CONTROL)

UNISONIC TECHNOLOGIES CO., LTD
PA7493
2W X 2 CLASS AB AUDIO
POWER AMPLIFIER (WITH
DC_VOLUME CONTROL)
CMOS IC
„ 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 hysteresis
* “Click and pop” suppression circuitry
* Low current consumption in SHUTDOWN Mode(0.7µA)
* Thermal shutdown
„ ORDERING INFORMATION
Ordering Number
Normal
Lead Free Plating
PA7493-D16-T
PA7493L-D16-T
Package
DIP-16
*Pb-free plating product number: PA7493L
Packing
Tube
www.unisonic.com.tw
Copyright © 2007 Unisonic Technologies Co., Ltd
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