7429

TDA7429L 3 BAND EQUALIZER AUDIO PROCESSOR WITH SUBWOOFER CONTROL s s s 3 STEREO INPUTS AUXILIARY MONO INPUT INPUT ATTENUATION CONTROL IN 0.5dB STEP TREBLE MIDDLE AND BASS CONTROL FOUR SPEAKERS ATTENUATORS: - 4 INDEPENDENT SPEAKERS CONTROL IN 1dB STEPS FOR BALANCE FACILITY - INDEPENDENT MUTE FUNCTION SUBWOOFER OUTPUT (L+R) CONTROLLED IN 1dB STEP INPUTS ALL FUNCTIONS PROGRAMMABLE VIA SERIAL BUS an additional subwoofer control. The AC signal setting is obtained by resistor networks and switches combined with operational amplifiers. Thanks to the used BIPOLAR/CMOS Technology, Low Distortion, Low Noise and DC stepping are obtained. SDIP42 ORDERING NUMBER: TDA7429L s s s s DESCRIPTION The TDA7429L is volume tone (bass middle and treble) balance (Left/Right) processors for quality audio applications in TV and Hi-Fi systems, providing also Figure 1. Test Circuit 2.2µF BASSO_R L+R OUTPUT N.C. N.C. N.C. N.C. N.C. LP 100nF 9 1 2 3 4 7 5 34 33 42 35 14 VAR_R 13 BASSO_L 12 2.2 µF 0.47µF VAR_L 11 MONO INPUT 10 0.47µF R_IN3 40 0.47µF R_IN2 39 38 36 R_IN1 0.47µF MONITOR_L L_IN1 0.47µF 0.47µF 0.47µF L_IN2 L_IN3 VS 10µF LP1 6 100nF 5.6nF 100nF 22µF 220nF TREBLE_R TREBLE_L 23 24 41 8 37 15 19 20 16 HP2 BASS_LO CREF 100nF MONITOR_R 22nF 18nF MIDDLE_LI 22nF MIDDLE_RO MIDDLE_RI 21 22 32 31 30 29 R_OUT 28 27 26 SDA 25 AGND MIDDLE_LO 100nF 100nF BASS_LI 100nF 2.7K 5.6K 17 BASS_RO 18nF 2.7K 100nF 18 BASS_RI 5.6K AUXOUT_L AUXOUT_R L_OUT DIG_GND SCL D99AU1029 March 2000 1/16...