SC7314 Datasheet | Silan Microelectronics

4-CH OUTPUT STEREO AUDIO PROCESSOR WITH 4 STEREO INPUTS AND TONE/VOLUME CONTROL DESCRIPTION The SC7314 is a volume, tone (bass and treble), balance (left/ right) and fader (front/rear) processor for quality audio applications in car radio and Hi-Fi systems. Selectable input gain and external loudness function are provided. Control is acplished by serial I2C bus microprocessor interface. The AC signal settings is obtained by resistor networks and switches bined with operational amplifiers. Due to the Used CMOS technology, low distortion, low noise and low DC stepping are obtained. Features - Input multiplexer: --4 stereo inputs --Selectable input gain for optimal adaptation to different sources - Four speaker attenuators: --4 independent speakers control in 1.25d B steps for balance and fader facilities --Independent mute function - All functions programmable via serial I C Bus - Loudness function - Volume control in 1.25d B steps - Treble and bass control - Input and output for external equalizer or noise reduction system .. ORDERING INFORMATION Device SC7314 SC7314S SC7314D Package DIP-28-600-2.54 SOP-28-375-1.27 SDIP-28-400-1.778 BLOCK DIAGRAM 18 6 17 12 20 19 3 24 L 16 L1 L2 15 L3 14 L4 13 R1 8 R2 9 10 11 28 R3 R4 CREF Volume & Loudness Bass Treble Speaker ATT/Mute Volume & Loudness Input Selection & Gain Control Speaker ATT/Mute SCL Bass Treble Serial Bus Decoder + Latches DGND Supply R 1 2 5 7 22 21 4 23 HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: .silan..cn REV:1.1 2007.09.25 Page 1 of...