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TDA7466 Scheda tecnica(PDF) 1 Page - STMicroelectronics |
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1 / 21 page TDA7466 DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SRS SURROUND SOUND AND VOICE CANCELLER 1 STEREO INPUT INPUT ATTENUATION CONTROL IN 0.5dB STEP TREBLE MIDDLE AND BASS CONTROL VOICE CANCELLER IS AVAILABLE STEREO SRS SURROUND SOUND WITH CENTER & SPACE CONTROL IS AVAILABLE THREE STANDARD SURROUND MODES ARE AVAILABLE: - MUSIC IN 4 DIFFERENT SELECTABLE RESPONSES - MOVIE AND SIMULATED IN 256 DIFFERENT SELECTABLE RESPONSES 2 SPEAKERS OUTPUTS - INDEPENDENT ATTENUATORS IN 1dB STEP FOR BALANCE FACILITY - ZERO CROSSING ATTENUATION AVAILABLE - AVAILABILITY OF LOUDSPEAKERS EQUALIZATION FIXED BY EXTERNAL COMPONENTS - INDEPENDENT MUTE FUNCTION 2 RECORD OUTPUTS - INDEPENDENT ATTENUATORS IN 1dB STEP FOR BALANCE FACILITY - MUX AVAILABLE FOR PROCESSES SIGNAL SELECTION - INDEPENDENT MUTE FUNCTION ALL FUNCTIONS PROGRAMMABLE VIA SE- RIAL BUS DESCRIPTION The TDA7466 is a volume tone (bass middle and treble) balance (Left/Right) processors with stereo SRS and voice canceller for quality audio applica- tions in car radio, Hi-Fi, TV systems. It reproduces SRS (Sound Retrieval System) sound by external components and surround sound by using phase shifters and a signal ma- trix. The AC signal setting is obtained by resistor networks and switches combined with operational amplifiers according to the SRS laboratories specification. Control of all the functions is ac- complished by serial bus. Thanks to the used BIPOLAR/CMOS Technology, Low Distortion, Low Noise and DC stepping are obtained. September 2003 ® ORDERING NUMBER: TDA7466 SDIP42 LP LP1 HP1 HP2 VAR_L VAR_R BASSO_L BASSO_R BASS_LO 1 3 2 4 5 6 7 8 9 L_OUT RECOUT_R RECOUT_L NETW2 NETW1 VREFOUT NBLO NBLIN L_IN 37 36 35 34 33 31 32 30 29 D96AU445A 10 11 12 13 14 42 41 40 39 38 VS PS4 PS3 PS2 PS1 R_IN LPVC NBRIN NBRO CREF BASS_LI BASS_RO BASS_RI MIDDLE_LI MIDDLE_LO MIDDLE_RO MIDDLE_RI 15 16 TREBLE_R TREBLE_L AGND SCL SDA DIG_GND R_OUT 28 27 26 24 25 23 22 17 18 19 20 21 PIN CONNECTION The Device incorporates the SRS WOW ® Technology under li- cence from SRS Labs, Inc. 1/21 |
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