TDA7430 STMicroelectronics

TDA7430 TDA7431 DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX AND VOICE CANCELLER 1FEATURES Figure 1. Package 1 STEREO (4STEREO) INPUT + 1 MIXER INPUT INPUT ATTENUATION CONTROL IN 0.5dB SDIP42 TQFP44 STEP VOICE CANCELLER IS AVAILABLE Table 1. Order Codes TREBLE MIDDLE AND BASS CONTROL Part Number Package THREE SURROUND MODES ARE TDA7431S SDIP42 AVAILABLE TDA7430 TQFP44 MUSIC: 4 SELECTABLE RESPONSES TDA7430TR Tape & Reel MOVIE AND SIMULATED: 256 SELECTABLE RESPONSES 2 DESCRIPTION 2 SPEAKERS AND 2 RECORD The TDA7430/TDA7431 is volume tone (bass middle ATTENUATORS: and treble) balance (Left/Right) processors voice 2 INDEPENDENT SPEAKERS AND 2 INDE- canceller for quality audio applications in car radio PENDENT RECORD CONTROL and Hi-Fi systems. IN 1dB STEP FOR BALANCE FACILITY They reproduce surround sound by using pro- grammable phase shifters and a signal matrix. AVAILABILITY OF LOUDSPEAKER EQUAL- IZATION FIXED BY EXTERNAL COMPO- Control of all the functions is accomplished by se- NENTS rial bus. The AC signal setting is obtained by resis- tor networks and switches combined with INDEPENDENT MUTE FUNCTION operational amplifiers. Thanks to the used BIPO- ALL FUNCTIONS PROGRAMMABLE VIA LAR/CMOS Technology, SERIAL BUS Low Distortion, Low Noise and DC stepping are obtained. Figure 2. Pin Connection (TDA7430) 44 43 42 41 40 39 38 37 36 35 34 1 LP1 33 R IN1 2 HP1 32 MIX 3 HP2. 31 L IN1 4 REAROUT 30 L IN2 5 REARIN 29 L IN3 6 VAR L 28 L IN4 7 BASSO L 27 RECOUT L 8 VAR R 26 RECOUT R 9 BASSO R 25 L OUT BASS LO 10 24 R OUT BASS LI 11 23 DIG GND 12 13 14 15 16 17 18 19 20 21 22 D95AU220B REV. 10 June 2004 1/23 BASS RO LP BASS RI PS1 MIDDLE LO PS2 MIDDLE LI PS3 MIDDLE RO PS4 MIDDLE RI V S TREBLE R CREF TREBLE L R IN4 AGND R IN3 SDA R IN2 SCL LPVCTDA7430 - TDA7431 Figure 3. Pin Connection (TDA7431) PS4 1 42 V S PS3 2 41 CREF PS2 3 40 NBRO PS1 4 39 NBRIN LP 5 38 LPVC LP1 6 37 R IN HP1 7 36 MIX HP2 8 35 L IN VOUTREF 9 34 NBLIN VAR L 10 33 NBLO BASSO L 11 32 RECOUT L VAR R 12 31 RECOUT R BASSO R 13 30 L OUT BASS LO 14 29 R OUT BASS LI 15 28 DIG GND BASS RO 16 27 SCL BASS RI 17 26 SDA MIDDLE LO 18 25 ADDR MIDDLE LI 19 24 AGND MIDDLE RO 20 23 TREBLE L MIDDLE RI 21 22 TREBLE R D95AU219B Table 2. Absolute Maximum Ratings Symbol Parameter Value Unit V Operating Supply Voltage 11 V S T Operating Ambient Temperature 0 to 70 C amb T Storage Temperature Range -55 to 150 C stg Table 3. Quick Reference Data Symbol Parameter Min. Typ. Max. Unit V Supply Voltage 7 9 10.2 V S V Max Input Signal Handling 2 V CL RMS THD Total Harmonic Distortion V = 0.1Vrms 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 Treble Control (2dB step) -14 14 dB Middle Control (2dB step) -14 14 dB Bass Control (2dB step) -14 14 dB Balance Control 1dB step (LCH, RCH) -79 0 dB Mute Attenuation 100 dB Table 4. Thermal Data Symbol Parameter Value Unit R Thermal Resistance Junction-pins 85 C/W th j-pin 2/23