TDA7312

® TDA7312 DIGITAL CONTROLLED STEREO AUDIO PROCESSOR INPUT MULTIPLEXER: - 4 STEREO INPUTS FOUR SELECTABLE ADDRESSES TWO DIGITAL CONTROL OUTPUTS INPUT AND OUTPUT FOR EXTERNAL EQUALIZER OR NOISE REDUCTION SYSTEM VOLUME CONTROL IN 1.25dB STEPS TREBLE AND BASS CONTROL TWO SPEAKER ATTENUATORS: - INDEPENDENT SPEAKERS CONTROL IN 1.25dB STEPS - INDEPENDENT MUTE FUNCTION ALL FUNCTIONS PROGRAMMABLE VIA SERIAL I2C BUS DESCRIPTION The TDA7312 is a volume, tone (bass and treble) balance (Left/Right) processor for quality audio applications. SDIP30 ORDERING NUMBER: TDA7312 Control is accomplished by serial I2C bus microprocessor interface. The AC signal setting is obtained by resistor networks andswitches combined with operationalamplifiers. Thanks to the used BIPOLAR/CMOS Tecnology, Low Distortion, Low Noise and Low DC stepping are obtained. PIN CONNECTION (Top view) November 1999 1/13 TDA7312 TEST CIRCUIT THERMAL DATA Symbol R th j-pins Description Thermal Resistance Junction-pins m ax SDIP30 85 Unit °C/W ABSOLUTE MAXIMUM RATINGS Symbol VS T amb Tstg Operating Supply Voltage Operating Ambient Temperature Storage Temperature Range Parameter Value 10.2 0 to 70 -40 to 150 Unit V °C °C QUICK REFERENCE DATA Symbol VS VCL THD S/N SC Supply Voltage Max. input signal handling Total Harmonic Distortion V = 1Vrms f = 1KHz Signal to Noise Ratio Channel Separation f = 1KHz Volume Control 1.25dB step 2db step 1.25dB step -78.75 -14 -38.75 100 Bass and Treble Control Mute Attenuation Paramet...