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| 5 BAND DUAL GRAPHIC EQ AMP S1A0234B01 INTRODUCTION The S1A0234B01 is a monolithic integrated circuit developed for the tereo 5 band graphic equalizer amplifier. It consists of an operational amplifier, and four resonant circuits with an active filter. It is suitable for radio cassette-tape recorders, car stereos or music centers. 24-SZIP-275 FEATURES * * * * Tone control with independent adjustment of each band through external capacitor Gain control through external variable resistor (Gain = 11dB) Excellent cross talk characteristics (CT = 70dB Typ, at RG = 0) Wide operating supply voltage range: VCC = 3.5V -- 14V ORDERING INFORMATION Device S1A0234B01-Y0B0 Package 24-SZlP-275 Operating Temperature -20C -- + 70C BLOCK DIAGRAM BUFFER OUT OUT2 18 20 NF1 BASE1 2 4 NF2 BASE2 NF3 6 8 10 BASE3 NF4 12 14 BASE4 16 IN2 22 GND 24 BIAS 1 NF1 3 BASE1 5 7 9 NF3 11 13 15 17 19 21 23 GND NF2 BASE2 BASE3 NF4 BASE4 OUT1 BUFFER IN1 OUT 1 S1A0234B01 5 BAND DUAL GRAPHIC EQ AMP ABSOLUTE MAXIMUM RATINGS (Ta = 25C) Characteristic Supply Voltage Power Dissipation Operating Temperature Storage Temperature Symbol VCC PD TOPR TSTG Value 15 500 -20 -- + 70 -40 -- + 125 Unit V mW C C ELECTRICAL CHARACTERISTICS (Ta = 25C, VCC = 8V, RL= 20K, Flat Mode, unless otherwise specified) Test Conditions Characteristic Quiescent Circuit Current Output Voltage Total Harmonic Distortion Channel Balance Cross Talk Output Noise Voltage Flat Symbol ICCQ VO THD CB CT VNO GV (Flat) 1K 1K 1K 1K f(Hz) Conditions VI = 0 THD = 1% - - - Min. 4.0 500 - -1.0 50 - -2.0 Typ. 7.0 600 0.1 0 70 10 -1.5 Max. 10.0 - 0.3 1.0 - 20 1.0 Unit mA mV % dB dB V dB Flat, RG = 2.2K BW(-3 dB) = 10Hz - 30kHz 1K 100 300 VI = 100mV Boost GV (Boost) 1K 3K VI = 100mV 9.0 11.0 14.0 dB Voltage Gain 10 K 100 300 Cut GV (Cut) 1K 3K 10 K VI = 100mV -14.0 -11.0 -9.0 dB 2 5 BAND DUAL GRAPHIC EQ AMP S1A0234B01 TEST CIRCUIT 0.022F 1k 100Hz 50k 300Hz 50k 1kHz 50k 3kHz 50k 10kHz 50k OUT2 1 F 0.033 F 0.33 F 0.01 F 0.1 F 0.0033 F 0.033 F 0.001 F 4.7 F 4.7 F IN2 4.7 F 2 4 6 8 10 12 14 16 18 20 22 24 S1A0234B01 1 3 5 7 9 11 13 15 17 19 21 23 4.7 F 0.033 F 1 F 0.01 F 0.33 F 0.0033 F 0.1 F 0.001 F 0.033 F 220F 50k 50k 100Hz 50k 300Hz 50k 1kHz 50k 3kHz 1k 0.022F 10kHz Vcc 4.7 F IN1 4.7 F OUT1 3 S1A0234B01 5 BAND DUAL GRAPHIC EQ AMP 4 |
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