|Datasheet||Download TDA7460 datasheet
DEVICE INCLUDES AUDIO PROCESSOR, STEREO DECODER, NOISEBLANKER AND HIGHCUT FUNCTIONS. HIGH PERFORMANCE SIGNAL PROCESSOR NO EXTERNAL COMPONENTS REQUIRED FULLY PROGRAMMABLE VIA I2C BUS LOW DISTORTION LOW NOISE DESCRIPTION The is a high performance signal processor specifically designed for car radio applications. The device includes a complete audioprocessor and a stereo decoder with noiseblanker, stereoblend and all signal processing functions necessary for state-of-the-art as well as future car radio systems. Switching-capacitors design technique allows to obtain all these features without external compoBLOCK DIAGRAM
nents or adjustments. This means that higher quality and reliability walks alongside an overall cost saving. The CSP is fully programmable by I2C bus interface allowing to customize key device parameters and especially filter characteristics. The BICMOS process combined with the optimized signal processing assure low noise and low distortion performances.CASS R CASS L PHONE (MPIN) PHONE GND (MPOUT)
This is preliminary information on a new product now in development. Details are subject to change without notice.
Symbol VS Tamb Tstg Operating Supply Voltage Operating Ambient Temperature Range Operating Storage Temperature Range Parameter Value to 150 Unit V °C
Symbol VS IS SVRR Parameter Supply Voltage Supply Current Ripple Rejection = 9V Audioprocessor (all filters flat) Stereodecoder + Audioprocessor Test Condition Min. 7.5 Typ. Max. 10 Unit mA dBCASS R CASS L CDR CDGND CDL PHGND (MPOUT) PHONE (MPIN) AM MPX LEVEL
Symbol Rth j-pins Parameter Thermal Resistance Junction-pins Max Value 85 Unit °C/W
AUDIO PROCESSOR PART Input Multiplexer Fully differential or quasi-differential CD Stereo input Cassette stereo input AM mono or stereo input Phone differential or single ended input Internal beep with 2 frequencies (selectable) Mixable phone and beep signals Loudness Second order frequency response Programmable center frequency and quality factor Selectable flat-mode (constant attenuation) Volume control 1dB attenuator Max. gain 20dB Max. attenuation 79dB Soft-step gain control
Bass Control 2nd order frequency response Center frequency programmable in 4(5) steps DC gain programmable x 2dB steps Treble Control 2nd order frequency response Center frequency programmable in 4 steps x 2dB steps Speaker Control 4 independent speaker controls (1dB steps with 50dB control range) Mute Functions Direct mute Digitally controlled softmute with 4 programmable time constantsELECTRICAL CHARACTERISTICS (VS = 9V; Tamb = 10K; all gains = 1KHz; unless otherwise specified).
Symbol Parameter Test Condition Min. Typ. Max. Unit K VRMS dB µV
R in VCL SIN GIN MIN GIN MAX GSTEP VDC Input Resistance Clipping Level Input Separation Min. Input Gain Max. Input Gain Step Resolution DC Steps Adjacent Gain Step GMIN to GMAX 80 -1 All inputs except Phone
R in CMRR GIN MAX Input Resistance Common Mode Rejection Ratio Max. Input Gain Differential mode Common Mode VCM @ 1KHz VCM to 20KHz flat; all stages 0dBR in CMRR Input Resistance Common Mode Rejection Ratio Differential Common Mode VCM @ 1KHz VCM K dB
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