PA3632G-P14-R Datasheet, PDF (1/9 Pages) Unisonic Technologies – Stereo Direct Audio Line driver

UNISONIC TECHNOLOGIES CO., LTD
PA3632
Preliminary
DIRECT 2-VRMS AUDIO LINE
DRIVER WITH ADJUSTABLE
GAIN
CMOS IC
 DESCRIPTION
The UTC PA3632 is a pop-free stereo line driver with the integrated
charge pump generating the negative supply rail which allows the
removal of the output DC-blocking capacitors. The UTC PA3632
provides a clean, pop-free ground-biased audio signal. The UTC
PA3632 is capable of driving 2VRMS into a 10kΩ load with 3.3V supply
voltage. The device has differential inputs and uses external resistors
for flexible gain setting. Gain can be configured individually for each
channel.
The UTC PA3632 has built-in active-mute control for pop-free audio
on/off control. The UTC PA3632 has an external under-voltage detector
that mutes the output when monitored voltage drop below set value.
The device has differential inputs and uses external gain-setting
resistors to support a gain range of ±1V/V to ±10V/V, and gain can be
configured individually for each channel. Line outputs have ±8-Kv
(HBM) IEC ESD protection, requiring just a simple resistor-capacitor
ESD protection circuit.
Using the UTC PA3632 in audio products can reduce component
count considerably compared to traditional headphone amplifiers.
 FEATURES
* Low THD+N<0.01% at 2Vrms Into 10kΩ
* Stereo Direct Audio Line driver
2Vrms Into 10KΩ With 3.3V Supply
* Integrated Charge Pump Generates Negative Supply Rail
* High SNR, >90dB
* Ground-Referenced Outputs Eliminate DC-Blocking
Capacitors
* Differential Input and Single-Ended Output
* Adjustable Gain by External Gain-Setting Resistors
* Pop-Free Under-Voltage Protection
* Short-Circuit Protection
* Click- and Pop-Reduction Circuitry
* Active Mute Control for Pop-Free Audio On/Off
Control
 ORDERING INFORMATION
Ordering Number
PA3632G-P14-R
Package
TSSOP-14
Packing
Tape Reel
www.unisonic.com.tw
Copyright © 2016 Unisonic Technologies Co., Ltd
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