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Datasheet File OCR Text: |
DUAL EQ AMP WITH ALC S1A0241A01 INTRODUCTION 9-SIP The S1A0241A01 is a monolithic integrated clrcuit consisting of a dual equalizer amplifier with ALC, and it is suitable for stereo radio cassette-tape recorders. FEATURES * * * * * * * Dual equalizer amplifier with built-in ALC circuit Low noise; VNI = 1.0V (Typ) High open loop voltage gain: 80dB (Typ) Wide operating supply voltage range: VCC = 4.5V - 14V Good ALC response balance between channels Input coupling capacitor unnecessary Diode or transistor for ALC unnecessary Minimum number of external parts required ORDERING INFORMATION] Device S1A0241A01-I0B0 Package 9-SlP Operating Temperature -20C -- + 75C BLOCK DIAGRAM - + - + ALC ALC CONT ALC 1 NF1 2 INPUT1 3 OUTPUT1 4 GND 5 ALC CONT 6 VCC 7 OUTPUT2 8 INPUT2 9 NF2 1 S1A0241A01 DUAL EQ AMP WITH ALC ABSOLUTE MAXIMUM RATINGS (Ta = 25C) Characteristic Supply Voltage Power Dissipation Operating Temperature Storage Temperature Symbol VCC PD TOPR TSTG Value 16 (NOTE) 550 Unit V mW C C -20 -- +75 -20 -- +125 NOTE: Derated above Ta = 25 C in the propotion of 5.5 mW/C ELECTRICAL CHARACTERISTICS (Ta = 25C, VCC = 7V, f = 1kHz, unless otherwise specified) Characteristic Quiescent Circuit Current Open Loop Voltage Gain Closed Loop Voltage Gain Output Voltage Total Harmonic Distortion Equivalent Input Noise Voltage Input Resistance ALC Range ALC Balance Symbol ICCQ GVO GVC VO THD VNI RI VALC CBALC VI = 0 VO = 0.3V VO = 0.3V THD = 1% VO = 0.3V R G=2.2k, BW (-3dB)=20Hz - 20kHz - R G = 3.9k, THD = 10% VI = 1mV Test Conditions Min. Typ. Max. Unit 1.5 70 45 0.6 - - 15 40 - 3.5 80 48 1.2 0.1 1.0 25 45 0 4.5 - 50 - 0.3 2.0 45 - 2.5 mA dB dB V % V k dB dB 2 DUAL EQ AMP WITH ALC S1A0241A01 TEST CIRCUIT S1A0241A01 1 2 3 4 5 6 7 8 9 SW2 4.3k 120k 1 SW3 18k SW1 39 A 3.9k 100 F 2 1M 0.027 F 22F 0.027 F SW10 SW6 SW9 2 18k 39 B 3.9k 100 F SW11 1 120k 4.3k 220 10 F Vcc 330 F 10F 10k SW4 C SW7 D SW8 2 1 2.2k 10k SW5 2 1 2.2k SG 3 3 SG 3 S1A0241A01 DUAL EQ AMP WITH ALC TEST METHOD Symbol ICCQ GVO GVC THD VO VNI VALC CH -1 CH -1 CH -1 CH -1 CH -2 CH -1 S1 ON ON OFF OFF OFF OFF ON OFF OFF S2 OFF OFF ON ON ON ON OFF OFF OFF S3 1 1 1 1 1 1 1 2 2 S4 ON ON ON ON ON ON ON OFF OFF S5 3 1 1 1 1 2 3 1 1 S6 ON ON ON ON ON ON ON OFF OFF S7 ON ON ON ON ON ON ON ON OFF S8 3 3 3 3 3 3 2 3 1 S9 1 1 1 1 1 1 1 1 2 S10 OFF OFF OFF OFF OFF OFF ON OFF OFF S11 ON ON ON ON ON ON OFF ON OFF CBALC 4 DUAL EQ AMP WITH ALC S1A0241A01 APPLICATION CIRCUIT - + - + ALC ALC CONT ALC 1 18K 2 3 4 5 6 7 8 9 220 18K Vcc 7V R1 R2 39 3.9K + 3.9K 39 100 + + + 22 10 1M + + + + 10 INPUT2 330 10 10 100 OUTPUT2 OUTPUT2 INPUT2 NOTE:ON playback, connect the time constant circuit as shown below, instead of R1 of Pins 1, 3 and R2 of Pins 7, 9, which are used in the NAB. 120k 4.3k PIN 1, PIN 7 0.027 PIN 3, PIN 9 5 S1A0241A01 DUAL EQ AMP WITH ALC APPLICATION CIRCUIT 1 S1A0241A01 1 120k 22F/16V 2 3 4 5 6 7 8 120k 9 1M R 10 F/16V P 0.022 F (M) 10 F/16V 4.7k 22k 100 F/16V 120k 100 F/16V 4.7k 22k 39 10 F/16V P 0.022 F (M) 10 F/16V R GND 0.0022F(M) 39 100 F/16V 220 2.7k R 0.0022F(M) 2.7k 85KHz 0.0022 F(M) 15k R P 85KHz 120k GND 220 15k R Bias OSC 220pF R 1000pF 0.015 F(M) R 0.022 F (M) P M P 10k 100 F/16V 0.022 F(M) C1008 POWER ON/OFF 22 GND VCC - P : PLAY - R : RECORD 6 PB OUT 0.0022 F(M) L REC IN L |
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