TA7642

Silicore ONE CHIP AM RADIO CIRCUIT z DESCRIPTION The CD7642 CS is suitable for low voltage po rtable www.DataSheet4U.com CD7642CP Outline Drawing Radio, cassette system and other wireless AM system. The package of CD7642CS is TO-92. FEATURE z z z Low operating voltage: Down to V C C =1.3V Low Quiescent Cu rrent: I C C O =0.2 mA Low external component requ ired. EQUIVALENT CIRCUIT 1 ABSOLUTE MAXIMUM RATINGS (Ta=25 ° C) Characteristic Supply Vo ltage Operating Te mperature Storage Temp erature Symbol Vcc Topr Tstg Value 6 -10~60 -55~150 Unit w w w t a .D S a e h U 4 t e .c m o 3 2 SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn CHMC w w w .D at h S a U 4 t °C e e °C 1/3 V m o .c Silicore ELECTRICAL CHARACTERISTICS CD7642CS (Unless otherwise specified: Ta=2 5 ° C, Vcc=1.3V, fm=1kHz, fo=1MHz,MOD=30%) Characteristics Supply Voltage Quiescent Current www.DataSheet4U.com Test conditions Vi=0 V O D =3 mV Vi=10 mV Symbol Vcc Icco Ri SM VOD ∆A Min. 1.2 0.14 Typ. 1.3 0.2 3 600 Max. 1.6 0.3 Unit V mA MΩ µV Input Resistance Maximu m Sensitivity Detector Ou tput Vo ltage The Range of AGC 5 15 30 30 mV dB TEST CIRCUIT 100K 0.1uF 2 CD7642CS 3 Vin 50 1 R AGC 1.5K Vcc Vout 0.1uF APPLICATION CIRCUIT R AGC 820K 100K 1.5K 7.5K Vcc=1.2~1.5V 30K 32 1K 600uH 140pF 7pF 2 CD7642CS 3 1 0.01uF 0.15uF 0.1uF Circuit 1 SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn 2/3 CHMC Silicore R AGC 100K 1K 1.5M 50pF 0.1uF 0.15uF 57 CD7642CS...