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TDA7442D013TR Datasheet(PDF) 1 Page - STMicroelectronics |
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TDA7442D013TR Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 17 page 1/17 TDA7442 TDA7442D June 2004 1FEATURES ■ 4 STEREO INPUTS ■ INPUT ATTENUATION CONTROL IN 0.5dB STEP ■ TREBLE AND BASS CONTROL ■ TWO SURROUND MODE AVAILABLE WITH 4 SELECTABLE RESPONSES: –MUSIC – SIMULATED STEREO ■ TWO SPEAKER ATTENUATORS: – 2 INDEPENDENT SPEAKER CONTROLS IN 1dB STEPS FOR BALANCE FACILITY – INDEPENDENT MUTE FUNCTION ■ ALL FUNCTIONS PROGRAMMABLE VIA SERIAL BUS ■ 2 MONITOR OUTPUT (ONLY FOR TDA7442) 2DESCRIPTION The TDA7442/42D is volume tone (bass and tre- ble) balance (Left/Right) processors for quality au- dio applications in TV and Hi-Fi systems. It reproduces surround sound by using a program- mable phase shifter. Control of all the functions is accomplished by serial bus. The AC signal setting is obtained by resistor net- works and switches combined with operational amplifiers. Thanks to the BIPOLAR/CMOS Technology used, Low Distortion, Low Noise and DC stepping are obtained. TONE CONTROL AND SURROUND DIGITALLY CONTROLLED AUDIO PROCESSOR Figure 2. Pin Connections (Top views) L_IN3 L_IN4 MUXOUTL IN(L) MUXOUT(R) BIN(R) IN(R) BOUT(R) BIN(L) 1 3 2 4 5 6 7 8 9 BOUT(L) LP PS1 TREBLE(R) TREBLE(L) SCL SDA DIG-GND CREF 23 22 21 20 19 17 18 16 15 D98AU948 10 11 12 13 14 28 27 26 25 24 R_IN3 R_IN2 R_IN1 L_IN1 L_IN2 VS AGND ROUT LOUT R_IN4 L-IN2 L-IN3 L-IN4 MUXOUT(L) IN(L) N.C. MUXOUT(R) IN(R) BIN(R) 1 3 2 4 5 6 7 8 9 PS1 TREBLE-L N.C. DIGGND TREBLE-R SCL SDA CREF VS 27 26 25 24 23 21 22 20 19 D01AU1247 10 11 12 13 14 32 31 30 29 28 R-IN2 R-IN1 MONITOR(L) MONITOR(R) L-IN1 AGND R-OUT L-OUT R-IN4 R-IN3 BIN(L) BOUT(L) 17 16 BOUT(R) LP 18 15 SO28 SDIP32 Figure 1. Packages Table 1. Order Codes Part Number Package TDA7442 SDIP-32 TDA7442D SO-28 TDA7442D013TR Tape & Reel SO-28 SDIP-32 REV. 2 |
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