CS35L32 Datasheet - Cirrus Logic

CS35L32 Boosted Class D Amplifier

The CS35L32 is a low-quiescent power-integrated audio IC, with a mono full-bridge Class D speaker amplifier operating with a self-boosted Class G supply. Audio input is received differentially. Pop-and-click reduction is achieved with zerocrossing transitions at turn-on, turn-off and upon gain chan.

CS35L32 Boosted Class D Amplifier with Speaker-Protection Monitoring and Flash LED Drivers Mono Class D Speaker Amplifier Two-level Class G operation: Boosted: 5 V nominal Bypassed: battery voltage is supplied directly 2.5-mA quiescent current, monitors powered down 1.7 W into 8 (@ 10% THD+N) 102-dB signal-to-noise ratio (SNR, A-weighted) Idle channel noise 25 Vrms (A-weighted) 90% efficiency Audio Input and Gai.

CS35L32 Features

* continue on page 2) SPKR VA VP VBST SW IREF+ SUPPLY FILT+ IN+ IN

*  ADC Current Sense Bandgap Voltage Generation VCOM Current Mode Synchronous Boost Controller Soft Ramp Low Battery Management VREF Generation VREF +

* 9,12,15, or 18 dB + Mute Class G I2C Class G Override

CS35L32-CirrusLogic.pdf