TDA7440D013TR STMicroelectronics

TDA7440 TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR 1 FEATURES Figure 1. Package INPUT MULTIPLEXER 4 STEREO INPUTS SELECTABLE INPUT GAIN FOR OPTIMAL ADAPTATION TO DIFFERENT SOURCES SO-28 ONE STEREO OUTPUT TREBLE AND BASS CONTROL IN 2.0dB Table 1. Order Codes STEPS Order code Package VOLUME CONTROL IN 1.0dB STEPS TDA7440D SO-28 TWO SPEAKER ATTENUATORS: TDA7440D013TR Tape & Reel TWO INDEPENDENT SPEAKER CONTROL IN 1.0dB STEPS FOR BALANCE FACILITY INDEPENDENT MUTE FUNCTION Selectable input gain is provided. Control of all the ALL FUNCTION ARE PROGRAMMABLE VIA functions is accomplished by serial bus. SERIAL BUS The AC signal setting is obtained by resistor net- works and switches combined with operational 2 DESCRIPTION amplifiers. The TDA7440D is a volume tone (bass and treble) Thanks to the used BIPOLAR/CMOS Technology, balance (Left/Right) processor for quality audio Low Distortion, Low Noise and DC stepping are applications in Hi-Fi systems. obtained Figure 2. Block Diagram MUXOUTL INL TREBLE(L) BIN(L) BOUT(L) 4 8 9 18 14 15 L-IN1 100K R B 5 L-IN2 100K 27 SPKR ATT 6 G VOLUME TREBLE BASS LOUT LEFT L-IN3 100K 7 L-IN4 100K 21 0/30dB SCL 2 I CBUS DECODER + LATCHES 22 2dB STEP 3 SDA R-IN1 20 DIG GND 100K 2 R-IN2 100K 26 SPKR ATT G VOLUME TREBLE BASS ROUT RIGHT 1 R-IN3 V REF 100K 24 28 V S R-IN4 SUPPLY 25 INPUT MULTIPLEXER AGND R B 100K + GAIN 10 11 19 12 13 23 D98AU883 MUXOUTR INR TREBLE(R) BIN(R) BOUT(R) CREF REV. 4 April 2010 1/17TDA7440 Figure 3. Pin Connection (Top view) R IN3 1 28 R IN4 R IN2 2 27 LOUT R IN1 3 26 ROUT L IN1 4 25 AGND L IN2 5 24 V S L IN3 6 23 CREF L IN4 7 22 SDA MUXOUTL 8 21 SCL IN(L) 9 20 DIG-GND MUXOUT(R) 10 19 TREBLE(R) IN(R) 11 18 TREBLE(L) BIN(R) 12 17 N.C. BOUT(R) 13 16 N.C. BIN(L) 14 15 BOUT(L) D98AU884 Table 2. Absolute Maximum Ratings Symbol Parameter Value Unit V Operating Supply Voltage 10.5 V S T Operating Ambient Temperature 0 to 70 C amb T Storage Temperature Range -55 to 150 C stg Table 3. Thermal Data Symbol Parameter Value Unit R Thermal Resistance Junction-pins 85 C/W th j-pin Table 4. Quick Reference Data Symbol Parameter Min. Typ. Max. Unit V Supply Voltage 6 9 10.2 V S V Max. input signal handling 2 Vrms CL THD Total Harmonic Distortion V = 1Vrms f = 1KHz 0.01 0.1 % S/N Signal to Noise Ratio V = 1Vrms (mode = OFF) 106 dB out S Channel Separation f = 1KHz 90 dB C Input Gain in (2dB step) 0 30 dB Volume Control (1dB step) -47 0 dB Treble Control (2dB step) -14 +14 dB Bass Control (2dB step) -14 +14 dB Balance Control 1dB step -79 0 dB Mute Attenuation 100 dB 2/17