NJW1149

www.DataSheet4U.com PRELIMINARY NJW1149 Audio Processor with Sound Enhancement and TruSurround 5.1ch Virtualizer s GENERAL DESCRIPTION The NJW1149 is an audio processor with BBE sound enhancement and SRS Labs' TruSurround 5.1 channel virtualizer. It includes all of functions processing audio signal for TV, such as volume, balance, mute, tone control, eala NJRC original surround and simulated stereo 2 functions. All of internal status and variables are controlled by I C BUS. s FEATURES q Operating Voltage 8 to 10 V 2 q I C BUS Interface q TruSurround 5.1ch. / 4ch. / 2ch. Inputs q BBE 0dB to +15dB(0.5dB/step) q eala (surround effect ; 2 steps) and Simulated Stereo qVolume 0 to -80dB, MUTE (0.33dB/step) qBalance 0 to -30dB, MUTE (1dB/step) qTone Control -15dB to +15dB(0.5dB/step) q Bi-CMOS Technology q Package Outline QFP64-C2 s PACKAGE OUTLINE NJW1149FC2 DataSheet4U.com DataShee s BLOCK DIAGRAM TONE-Ha TONE-La BBE-Ha BBE-La TS FIL2 CTS1 CTS2 OUTa LFINa LFOUTa TS FIL1 eala Fil AGC LTS Vol1 + BBE Tone Vol2 Buffer ATT ATT TruSurround RL IN RRIN C IN SW IN Vol1 eala - BBE Tone Vol2 Buffer Bias V+ GND TONE-Hb TONE-Lb LFOUTb Center Space1 Space2 BBE-Hb BBE-Lb TS FIL3 Vrefo RTS Outb DataSheet4U.com –1– LFINb Vref I2C Bus Interface L IN R IN FL IN FR IN SCL SDA CBH CBL CVA CVB CTH CTL CSR AGC www.DataSheet4U.com NJW1149 s PIN FUNCTION PRELIMINARY 51 33 52 32 64 20 1 19 et4U.com No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1...