器件名称:
SM6451B
功能描述:
Audio Variable Volume IC
文件大小:
162.15KB 共12页
简 介:
SM6451B Audio Variable Volume IC OVERVIEW The SM6451B is a 3-wire serial-controlled electronic variable volume IC for audio applications. It provides electronic volume control for a stereo system (left and right channels), and independent channel attenuation and muting, with greatly enhanced digital zip noise suppression. The chip address function allows up to four SM6451B devices to be connected and individually controlled over the 3-wire control interface from a single CPU. It is available in 16-pin TSSOP packages. FEATURES I I PINOUT (Top view) I I I I I I I Stereo inputs and outputs Attenuation function 2-channel independent control 1.0dB/step over 80 steps 0 to 80dB range Mute function 3-wire serial data control (MDT, MCK, MLEN) Chip addressing (up to 4 devices can be connected in parallel) Low noise 0.003% THD + noise 12Vrms residual noise 2.5 to 3.6V single power supply Silicon-gate CMOS process Package: 16-pin TSSOP (Pb free) RSTN ADRS1 ADRS2 DVDD LOUT LIN AVDD VRL 1 16 MDT MCK MLEN DVSS ROUT RIN AVSS 8 9 VRR APPLICATIONS I PACKAGE DIMENSIONS (Unit: mm) Weight: 0.07g Audio equipment ORDERING INFORMATION Device SM6451BT Package 16-pin TSSOP 4.40 ± 0.1 6.40 ± 0.2 0.44TYP 1.00TYP 0 to 8 0.225TYP 0.65 0.08 + 0.08 0.22 0.07 0.50 ± 0.10 5.20MAX 5.00 ± 0.08 0.17 ± 0.05 + 0.03 0.07 0.04 0.13 M NIPPON PRECISION CIRCUITS INC.—1 + 0.03 1.07 0.07 1.00 ± 0.05 SM6451B BLOCK DIAGRAM DVDD DVSS Attenuation Control 1/2VDD LIN LOUT MLEN MCK MDT RST……
