器件名称:
SM6453AB_02
功能描述:
3-wire Serial Data Volume Control for Headphone Amplifier IC
文件大小:
354.97KB 共19页
简 介:
SM6453AB 3-wire Serial Data Volume Control for Headphone Amplier IC OVERVIEW The SM6453AB is a stereo headphone amplier IC with built-in electronic volume controlled by 3-wire serial data. Two switchable input systems are supported. It features bass boost function, automatic gain control (AGC) function, power-down function, and beep sound input/output function, making it ideal for use in portable electronic products. FEATURES I I PINOUT (Top view) I I I I I I I I I I I 2 stereo system inputs, selectable 1 output system Headphone amplier function +12dB to -68dB output voltage gain range (GCNT) +12dB headphone amplier gain (GHPA) Attenuation function 1.0dB step width, 81 steps, 0 to –80dB range (GEVR) Mute function Bass boost function (2 boost characteristics controlled by external RC network) Auto gain control function (AGC) Beep sound input/output circuit 26mW+26mW maximum output power (1kHz, THD + N = 10%, 16 load, 2.0V supply voltage) Power-down function 1.8 to 3.6V operating supply voltage range Low current consumption (2.3mA total, 2.4V supply voltage) Silicon-gate CMOS process 32-pin QFN package DVDD1 DVDD2 DVSS LRMXO AGCTC BSTC BSTN MLEN MCK MDT RSTN MUTEN PDN BEEPI VREF1 VREF2 1 2 3 4 5 6 7 8 9 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 10 11 12 13 14 15 16 BSTO BEEPLO LOUT AVSS2 AVDD2 AVDD3 AVSS3 ROUT BEEPRO PACKAGE DIMENSIONS (Unit: mm) ORDERING INFORMATION Device SM6453AB Package 5.00 ± 0.05 5.20 ± 0.1 (Top view) 6.00 ± 0.05 C0 AVDD1 LIN1 LIN……
