Details, datasheet, quote on part number: TDA7466
PartTDA7466
CategoryMultimedia => Audio
DescriptionDigitally Controlled Audio Processor With SRS Surround Sound And Voice CANceller
CompanyST Microelectronics, Inc.
DatasheetDownload TDA7466 datasheet
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Features, Applications

DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SRS SURROUND SOUND AND VOICE CANCELLER
The Device incorporates the SRS WOW® Technology under licence from SRS Labs, Inc.

1 STEREO 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 SERIAL BUS

DESCRIPTION The is a volume tone (bass middle and treble) balance (Left/Right) processors with stereo SRS and voice canceller for quality audio applications 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 matrix. 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 acSeptember 2003

HP1 HP2 VAR_L BASSO_L VAR_R BASSO_R BASS_LO BASS_LI BASS_RO BASS_RI MIDDLE_LO MIDDLE_LI MIDDLE_RO MIDDLE_RI

CREF NBRO NBRIN LPVC R_IN VREFOUT L_IN NBLIN NBLO NETW2 NETW1 RECOUT_L RECOUT_R L_OUT R_OUT DIG_GND SCL SDA AGND TREBLE_L TREBLE_R

complished by serial bus. Thanks to the used BIPOLAR/CMOS Technology, Low Distortion, Low Noise and DC stepping are obtained.

MIXING AMP FIX + 3BAND FIX REAR SURR REC ATT MUTE 30K CENTER 33 22 TREBLE-R NETW2 SPACE RB 16 BASS-RO 79dB CONTROL BASSO-R 13 12 VAR-R 40 NBRIN 41 NBRO


2.2µF NB2 VAR-L NBLIN 34 NBLO 10 35 NB-LA NB-LB PS1 5 MIX SW RPS1 FIX 31 79dB CONTROL SURR REC ATT 79dB CONTROL SPKR ATT MUTE PS3 PS4 TREBLE-L BASS-LI BASS-LO BASSO-L PS1 90Hz MUSIC MOVIE/ SIM SRS FIX PS4 400Hz RECOUT-L 29 L-OUT 25 27 SCL SDA DIG_GND 79dB CONTROL SPKR ATT MUTE 30 28 R-OUT RECOUT-R NB3 NB-RB NB4

Symbol Rth j-pins Thermal Resistance Junction-pins Description Max. Value 85 Unit °C/W

Symbol VS Tamb Tstg Operating Supply Voltage Operating Ambient Temperature Storage Temperature Range Parameter Value to +150 Unit V °C

Symbol VS VCL THD S/N SC Supply Voltage Max. input signal handling Total Harmonic Distortion = 1KHz Signal to Noise Ratio V out = 1Vrms (mode = OFF) Channel Separation = 1KHz Input Attenuation Control (0.5dB) Treble Control (2db step) Middle Control (2db step) Bass Control (2dB step) Balance Control 1dB step (LCH, RCH) Mute Attenuation Parameter Min. Typ. 9 Max. 10.2 Unit V Vrms % dB

ELECTRICAL CHARACTERISTICS (refer to the test circuit Tamb = 10K, Vin = 600, all controls flat = 0dB), Effect Ctrl = -6dB, MODE = OFF; = 1KHz unless otherwise specified)

Symbol Parameter Test Condition Min. Typ. Max. Unit
VS IS SVR Supply Voltage Supply Current Ripple Rejection LCH / RCH out, Mode = OFF dB K Vrms mV dB

RIN VCL ARANGE AVMIN AVMAX ASTEP VDC AVO1 AVO2 Input Resistance Clipping Level Attenuation Range Min. Attenuation Max. Attenuation Step Resolution DC Steps Voice Canceller Output 1 Voice Canceller Output 2 Adjacent att. step LIN = RIN, RIN = ON, Vmix = 0V FIX, 0dB attenuation LIN = RIN = 0V Vmix = 1Vrms FIX, 0dB attenuation THD


 

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