PA7493_08 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
DIP-16
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
SOP-16
Lead-free: PA7493L
Halogen-free: PA7493G
* 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
„ ORDERING INFORMATION
Normal
PA7493-D16-T
PA7493-S16-R
PA7493-S16-T
Ordering Number
Lead Free
PA7493L-D16-T
PA7493L-S16-R
PA7493L-S16-T
Halogen Free
PA7493G-D16-T
PA7493G-S16-R
PA7493G-S16-T
Package
DIP-16
SOP-16
SOP-16
Packing
Tube
Tube
Tape Reel
www.unisonic.com.tw
Copyright © 2008 Unisonic Technologies Co., Ltd
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