Details, datasheet, quote on part number: TDA7437T
PartTDA7437T
Category
Description
CompanyN.A.
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Features, Applications

INPUT MULTIPLEXER - FOUR STEREO, ONE MONO INPUT, AND ONE DIFFERENTIAL INPUT - SELECTABLE INPUT GAIN FOR OPTIMAL ADAPTATION TO DIFFERENT SOURCES FULLY PROGRAMMABLE LOUDNESS FUNCTION VOLUME CONTROL IN 1dB STEPS INCLUDING GAIN TO 16dB ZERO CROSSING MUTE, SOFT MUTE AND DIRECT MUTE BASS AND TREBLE CONTROL FOUR SPEAKER ATTENUATORS - FOUR INDEPENDENT SPEAKERS CONTROL IN 1dB STEPS FOR BALANCE AND FADER FACILITIES PAUSE DETECTOR PROGRAMMABLE THRESHOLD ALL FUNCTIONS PROGRAMMABLE VIA SERIAL I2 CBUS DESCRIPTION The audioprocessor is an upgrade of the TDA731X audioprocessor family. PIN CONNECTION

Due to a highly linear signal processing, using CMOS-switching techniques instead of standard bipolar multipliers, very low distortion and very low noise are obtained. Several new features like softmute, and zero-crossing mute are implemented. The soft Mute function can be activated in two ways: 1 Via serial bus (Mute byte, bit D0) 2 Directly on pin 28 through an I/O line of the microcontroller Very low DC stepping is obtained by use of a BICMOS technology.

Symbol AVDD, DVDD Tamb Tstg Operating Supply Voltage Operating Ambient Temperature Storage Temperature Range Parameter Value to 150 Unit V C

Symbol Rth j-amb Parameter Thermal Resistance Junction-pins Max. Value 150 Unit C/W

Symbol AVDD, DVDD VCL THD S/N SC Max. input signal handling Total Harmonic Distortion = 1KHz Signal to Noise Ratio Channel Separation = 1KHz Input Gain 1dB step Volume Control 1dB step Treble Control 2dB step Bass Control 2dB step Middle Control 2dB step Fader and Balance Control 1dB step Loudness Control 1dB step Mute Attenuation Parameter Supply Voltage (AVDD and DVDD must be at the same potential) Min. 6 2.1 Typ. Max. 10.2 Unit V Vrms % dB

MUXOUT_L LOUD(L) MOUT(L) MIN(L) BOUT(L) BIN(L)
STEREOIN4L INGAIN S-MUTE VOLUME + LOUDN TREBLE MIDDLE BASS
STEREOIN3R INGAIN TREBLE MIDDLE VOLUME + LOUDN BASS S-MUTE SPKR ATT RRout
DIFFINRGND MUTE CONTROL SOFT, ZERO SPKR ATT FRout

 

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