A2232 Datasheet | AiT Semiconductor

DESCRIPTION The A2232 is a stereo audio power amplifier that drives 3W/channel of continuous RMS power into a 3Ω load. Advanced DC volume control minimizes external ponents and allows BTL (speaker) volume control and SE (headphone) volume control. Notebook and pocket PCs benefit from the integrated feature set that minimizes external ponents without sacrificing functionality. To simplify design, the speaker volume level is adjusted by applying a DC voltage to the VOLUME terminal. Likewise, the delta between speaker volume and headphone volume can be adjusted by applying a DC voltage to the SEDIFF terminal. To avoid an unexpected high volume level through the headphones, a third terminal, SEMAX, limits the headphone volume level when a DC voltage is applied. Finally, to ensure a smooth transition between active and shutdown modes, a fade mode ramps the volume up and down. The A2232 is available in P-TSSOP24 package. FEATURES - Advanced DC Volume Control With 2-d B Steps, From -40 d B to 20 d B -Fade Mode -Maximum Volume Setting for SE Mode -Adjustable SE Volume Control - - - - - Referenced to BTL Volume Control 3 W Into 3Ω Speakers Stereo Input MUX Differential Inputs Available in P-TSSOP24 Package APPLICATION - - - Notebook PC LCD Monitors Pocket PC TYPICAL APPLICATION ORDERING INFORMATION Package Type P-TSSOP24 Note TMXP24 Part Number A2232TMXP24R A2232TMXP24VR V: Halogen free Package R: Tape & Reel Typical A2232 application Circuit Using Single-Ended Inputs And Input MUX Ai T provides all Ro HS products Suffix “ V “ means Halogen free Package REV1.2 - AUG 2011 RELEASED, JUL 2012 UPDATED - -1- Free Datasheet http://.datasheetlist./ Ai T Semiconductor Inc. .ait-ic. AUDIO AMPLIFIER 3W STEREO WITH ADVANCED DC VOLUME CONTROL PIN DESCRIPTION Top View Pin # 1,13 2 3,11 4 5 6 7 8 9 10 12 Symbol PGND ROUTPVDD RHPIN RLINEIN RIN VDD LIN LLINEIN LHPIN LOUTI/O O I I I I I I O Power ground Right channel negative audio output Supply voltage terminal for power...