NJW1149A

NJW1149A www.DataSheet4U.com Audio Processor with Sound Enhancement and TruSurround 5.1ch Virtualizer s GENERAL DESCRIPTION The NJW1149A 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 surround and simulated stereo functions. All of 2 internal status and variables are controlled by I C BUS. The NJW1149 is available for Virtual Dolby Surround or Virtual Dolby Digital with Dolby Pro Logic or Dolby Digital system*. *For use in Virtual Dolby Surround(VDS) and/or Virtual Dolby Digital(VDD) products, please contact Dolby Laboratories for licensing information. Dolby and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation. Licensing and application information may be obtained from Dolby Lab. s PACKAGE OUTLINE NJW1149AFH1 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-H1 s BLOCK DIAGRAM TONE-Ha TONE-La BBE-Ha BBE-La TS FIL2 CTS1 CTS2 OUTa LFINa LFOUTa TS FIL1 eala Fil AGC Vol1 + BBE Tone Vol2 Buffer ATT ATT TruSurround RL IN RRIN C IN SW IN Vol1 eala - BBE Tone Vol...