NJW1298

NJW1298 8-CHANNEL ELECTRONIC VOLUME WITH INPUT SELECTOR Q GENERAL DESCRIPTION The NJW1298 is a 8-channel electronic volume with Input Selector. It includes 13-in 4-out stereo audio selector , REC Output and Multi-channel inputs. The NJW1298 performs low noise and low distortion characteristics with resistance ladder circuit. All of functions are controlled via three-wired serial bus. Selectable 2-Chip address is available for using two chips on same serial bus line. The NJW1298 is suitable for multi-channel audio system, such as AV amplifier, DVD receiver, and others. Q PACKAGE OUTLINE NJW1298FU1 Q FEATURES O Operating Voltage ±4.5 to ±7.5V O 3-Wired Serial Control Chip Address Select Function O 13-input 4-output stereo selector O Multi-Channel input (8ch x 2) O Input Selector Gain Control Gain : 0 to -21dB / 3dB step O Volume +31.5 to –95dB / 0.5dB step, Mute O SWch, Cch, LS/RSch output addition to L/R ch output O LB/RBch output addition to LS/RS ch output O Zero Cross Detection O Bi-CMOS Technology O Package Outline QFP100-U1 Q BLOCK DIAGRAM REC A REC B REC C Stereo Lin (×13) REC_A REC_B REC_C Main REC_A REC_B REC_C Main Input Selector Stereo Rin (×13) Input Selector Main REC_C REC_B REC_A Main REC_C REC_B REC_A + Zero Cross Detection (8ch) Multi-Lin Multi-Rin Input Selector Gain: 0 to -21dB / 3dB step Multi-Cin Lout for ADC Multi-LSin Rout for ADC Multi-RSin Multi-LBin Multi-RBin Multi-SWin Main Volume: +31.5 to -95dB/0.5dB step Co...