NJW1146A

NJW1146A www.DataSheet4U.com Audio Processor with BBE s GENERAL DESCRIPTION NJW1146A is an audio processor with BBE, which also includes Master volume, Balance, Tone Control, eala(NJRC surround), Mute, and Output 2 filter amplifier. All of internal status and variables are controlled by I C BUS. s FEATURES q Operating Voltage 2 q I C Bus interface q BBE q eala & simulated stereo q Master Volume q Balance qTone Control q Bi-CMOS q Package Outline 8 to 13 V 0 to +15dB(0.5dB/step) 0 to -80dB, MUTE(0.33dB/step) 0 to -30dB, MUTE(1dB/step) -15 to +15dB(0.5dB/step) SSOP32 NJW1146AV s PACKAGE OUTLINE s BLOCK DIAGRAM TONEHa TONELa eala Fil OUTa LFINa LFOUTa AGC BBEHa BBELa SCL SDA Ina AGC Vol1 BBE Tone Vol2 Buffer CBH CBL CVA CVB CTH CTL CSR Inb Vol1 BBE Tone Vol2 Buffer I2C Bus Interface eala Bias V+ GND TONEHb TONELb LFOUTb BBEHb BBELb OUTb LFINb Vref –1– NJW1146A www.DataSheet4U.com s PIN FUNCTION 32 17 1 16 No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 SYMBOL INa ealaFil BBE1a BBE2a TONE-Ha TONE-La OUTa LFINa LFOUTa AGC CVA CVB SDA SCL GND N.C. FUNCTION A ch Input eala Filter Capacitor Ach BBE High-Pass Filter Capacitor Ach BBE Low-Pass Filter Capacitor Ach TONE Treble Filter Capacitor Ach TONE Bass Filter Capacitor Ach Output Buffer Input for Ach Low Pass Filter Buffer Output for Ach Low Pass Filter AGC Smoothing Filter Capacitor Ach Volume switching noise rejection Capacitor Bch Volume switching noise rejection Capacitor I2C Data Input I2C ...