PA7493

UNISONIC TECHNOLOGIES CO., LTD PA7493 2W X 2 CLASS AB AUDIO POWER AMPLIFIER (WITH DC_VOLUME CONTROL)  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 (VCC=6V, THD=1%, RL=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 Ordering Number Lead Free Halogen Free PA7493L-D16-T PA7493G-D16-T - PA7493G-S16-R Package DIP-16 SOP-16 CMOS IC DIP-16 SOP-16 Packing Tube Tape Reel  MARKING DIP-16 SOP-16 www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd 1 of 7 QW-R502-113.D PA7493  PIN CONFIGURATION SHUTDOWN 1 VCC 2 DC Vol 3 VOUT1 4 VIN1 5 VIN2 6 VOUT2 7 GND 8 UTC PA7493 16 +OUT1 15 VCC 14 -OUT1 13 BYPASS 12 SE/BTL 11 -OUT2 10 VCC 9 +OUT...