UTC7642

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 12KΩ R5 12KΩ R6 12KΩ R9 12KΩ R11 12KΩ R13 12KΩ R15 C4 12KΩ 23pF 2 T1 C1 12pF R4 12KΩ T4 R2 3.3KΩ C2 12pF R7 12KΩ R8 12K Ω T5 T6 R10 12K Ω R12 12K Ω R14 74.6 Ω T10 R1 5.6KΩ T7 T8 T9 T2 T3 1 ABSOLUTE MAXIMUM RATINGS (Tested at Ta=25°C, 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=25°C, 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 MΩ µV mV dB TEST CIRCUIT RAGC 1.5kΩ 100kΩ Vcc 0.01 µF 2 Vin 75 Ω UTC 7642 3 1 0.1 µF Vout APPLICATION CIRCUIT 100kΩ RAGC 1kΩ 7.5kΩ 57 Ω 820 Ω 600 µH 140pF 7pF 2 UTC 7642 3 1 0.15 µF 0.1 µF 1.5V 1kΩ 32 Ω 0.01 µF UTC UNISONIC TECHNOLOGIES CO. LTD 2 Q...