Capless 2Vrms to 3Vrms Audio Driver with Adjustable Gain WS742128, Designed to Optimize the Audio Driver Circuit Performance and Reduce the BOM Cost

2023-11-26 WILLSEMI
Audio Driver,WS742128,WS742128M-10/TR,WS742128D-10/TR

The WS742128 Audio Driver is an integrated solution for a Set-top box and high definition player and is designed to optimize the audio driver circuit performance while reducing the BOM cost by eliminating the peripheral discrete components for noise reduction. WS742128 features a 3Vrms stereo audio driver that is designed to allow for the removal of output AC-coupling capacitors. Featuring a single-ended input mode, a gain range of ±1V/V to ±10V/V can be achieved via an external gain resistor setting. The WS742128 is able to offer 3Vrms output at 600Ω load with a 5V supply. Meanwhile, the WS742128 offers built-in shut-down control circuitry for optimal pop-free performance. Under the under-voltage condition, WS742128 is able to detect it and mute the output. WS742128 satisfies MSL3 level requirements.


Features

● Single Supply Voltage: 3.0V~5.5V
● THD+N : >100dB
● SNR : >112dB
● -40℃ to 85℃ Operation Range
● Voltage Output at 600Ω Load
2Vrms with 3.3V supply voltage
3Vrms with 5.0V supply voltage
● No Pop/Clicks Noise when Power ON/OFF
● No Need Output DC-Blocking Capacitors
● Optimized Frequency Response between 20Hz~20kHz
● Accepting Differential Input
● Featuring external under voltage mute
● Ultra Low noise and THD


Applications
Set-Top Boxes
High Definition DVD Players
Car Entertainment System
Medical


Absolute Maximum Ratings

ESD, Electrostatic Discharge Protection

Order Information

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