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| UTC 7642 DESCRIPTION LINEAR INTEGRATED CIRCUIT ONE CHIP AM RADIO CIRCUIT UTC 7642 is suitable for low voltage portable Radio, cassette system and other wireless AM system. The package of UTC7642 is TO-92. FEATURE *Low operating voltage: Down to VCC=1.3V *Low Quiescent Current:ICCO=0.2mA *Low external component required. 1 TO-92 EQUIVALENT CIRCUIT 3 R3 12K R5 12K R6 12K R9 12K R11 12K R13 12K R15 C4 12K 23pF 2 T1 C1 12pF R4 12K T4 R2 3.3K C2 12pF R7 12K R8 12K T5 T6 R10 12K R12 12K R14 74.6 T10 R1 5.6K T7 T8 T9 T2 T3 1 ABSOLUTE MAXIMUM RATINGS (Tested at Ta=25C, unless otherwise specified) PARAMETERS Supply Voltage Operating Temperature Storage temperature SYMBOLS VCC Topr TSTG MIN. -10 -55 MAX. 6 60 150 UNIT V C C UTC UNISONIC TECHNOLOGIES CO. LTD 1 QW-R110-015,A UTC 7642 PARAMETERS Supply Voltage Quiescent Current Input Resistance Maximum Sensitivity Detector Output Voltage The Range of AGC LINEAR INTEGRATED CIRCUIT SYMBOLS VCC ICCQ RI SM VOD A VOD=3mV VI=10mV VI=0 ELECTRICAL CHARACTERISTICS (Tested at Ta=25C, VCC=1.3V,fm=1KHZ,fO=1MHZ,MOD=30%, unless other specified) TEST CONDITIONS MIN. 1.2 0.14 5 - TYP. 1.3 0.20 3 600 15 30 MAX. 1.6 0.30 30 - UNIT V mA M V mV dB TEST CIRCUIT RAGC 1.5k 100k Vcc 0.01 F 2 Vin 75 UTC 7642 3 1 0.1 F Vout APPLICATION CIRCUIT 100k RAGC 1k 7.5k 57 820 600 H 140pF 7pF 2 UTC 7642 3 1 0.15 F 0.1 F 1.5V 1k 32 0.01 F UTC UNISONIC TECHNOLOGIES CO. LTD 2 QW-R110-015,A |
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