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| UTC KA22241 LINEAR INTEGRATED CIRCUIT DUAL EQUALIZER AMPLIFIER WITH ALC DESCRIPTION The UTC KA22241 is a monolithic integrated circuit, consisting of 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(Typical) *High open loop voltage gain: Gv=80dB(Typical) *Good ALC response balance between channels *Not necessary the input coupling capacitor *Not necessary the diode or transistor for ALC *Built in power supply muting circuit *Minimum number of external parts required SIP-9 BLOCK DIAGRAM channel 1 mute channel 2 ALC 1 NF1 2 IN1 3 OUT1 4 GND 5 ALC 6 Vcc 7 OUT2 8 IN2 9 NF2 ABSOLUTE MAXIMUM RATING(Ta=25C) PARAMETER Supply Voltage Operating Temperature Storage Temperature Power Dissipation SYMBOL VCC TOPR TSTG PD VALUE 16 -20 to 75 -20 to 125 550 UNIT V C C mW UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R110-001,A UTC KA22241 PARAMETER Quiescent Circuit Current Open Loop Voltage Gain Closed Loop Voltage Game Output Voltage Total Harmonic Distortion Input Noise Voltage Input Resistance ALC Range ALC Balance VO THD VNI RI LINEAR INTEGRATED CIRCUIT TEST CONDITIONS VI=0 VO=0.3V VO=0.3V THD=1% VO=0.3V RO=2.2K BW(-3dB)=20HZ 20KHZ 15 RO=3.9K,THD=10% VI=1mV 40 ELECTRICAL CHARACTERISTICS(Ta=25C, VCC=7V, f=1KHZ, unless otherwise specified) SYMBOL ICCQ GVO GVC MIN 1.5 70 45 0.6 TYP 3.5 80 48 1.2 0.1 1.0 25 45 0 MAX 4.5 50 UNIT mA dB dB V 0.3 2.0 45 2.5 % V k dB dB | VALC CBALC TEST CIRCUIT UTC KA22241 1 2 0.027 F SW 2 4.3k 120k 15k SW 3 10 F 3 4 2.2 F 5 SW 6 1M 6 330 F 7 8 0.027 F 9 SW 4 SW 7 SW 9 120k SW 10 4.3k 15k 3.9k 2.2k SW 5 A 100 F 10k 220 SW 8 2.2k SW 1 39 C D 3.9k 10 F 39 100 F SW 11 B 10k ~ Vcc ~ UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R110-001,A UTC KA22241 TEST METHOD SYMBOL ICCQ GVO GVC THD VO VNI-1 VNI-2 VALC CBALC SW1 ON ON OFF OFF OFF OFF ON OFF OFF SW2 OFF OFF ON ON ON ON OFF OFF OFF LINEAR INTEGRATED CIRCUIT SW3 1 1 1 1 1 1 1 2 2 SW4 ON ON ON ON ON ON ON OFF OFF SW5 3 1 1 1 1 2 3 1 1 SW6 ON ON ON ON ON ON ON OFF OFF SW7 ON ON ON ON ON ON ON ON OFF SW8 3 3 3 3 3 3 2 3 1 SW9 SW10 SW11 1 OFF ON 1 OFF ON 1 OFF ON 1 OFF ON 1 OFF ON 1 OFF ON 1 ON OFF 1 OFF ON 2 OFF ON APPLICATION CIRCUIT channel 1 mute channel 2 ALC 1 2 R1 15k 10 F 3.9k 3 4 5 330 F 6 7 8 9 Vcc=7V 220 100 F 39 10 F 3.9k Note: On playback, connect the time constant circuit as follows below, instead of R1, R2 of PINS 1-3, 7-9, which are used in the NAB. 120k PIN1-3 4.3k PIN7-9 0.027F UTC UNISONIC TECHNOLOGIES CO., LTD. 100 F 39 10 F 22 F 1M 10 F R1 15k 3 QW-R110-001,A |
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