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 C2 12pF R7 12KΩ R8 12KΩ T5 T6 R10 12KΩ R12 12KΩ R14 74.6Ω T10 R2 3.3KΩ 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 57Ω 820Ω 600 µH 140pF 7pF 2 UTC 7642 3 1 0.15 µF 0.1 µF 1.5V 1kΩ 32Ω 0.01 µF UTC UNISONIC TECHNOLOGIES CO. LTD 2 QW-R110-015,A UTC 7642 LINEAR INTEGRATED CIRCUIT UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UTC UNISONIC TECHNOLOGIES CO. LTD 3 QW-R110-015,A