TDA1072A

www.DataSheet4U.com TELEFUNKEN Semiconductors TDA 1072 A AM Receiver Circuit Technology: Bipolar Features D Controlled RF preamplifier D Multiplicative balanced mixer D Separate oscillator with amplitude control D IF amplifier with gain control Case: 16 pin dual inline plastic D Balanced full–wave detector D Audio preamplifier D Internal AGC voltage D Amplifier for field–strength indication D Electronic stand–by on/off switch Figure 1 Block diagram and application circuit Preliminary Information 1 TDA 1072 A Absolute maximum ratings Reference point pin 16, unless otherwise specified Parameters Supply voltage Voltage on Pin 2 RF inputs Voltages Reference point 15 Pin 13 Symbol VS V2 "Vi 14/15 Vi –Vi Vi –Vi "Ii Tamb Tstg TELEFUNKEN Semiconductors Value 20 0 to 20 Unit V V Pin 14 Pin 14 Pin 14 Pin 15 Pin 15 Pin 14, 15 12 Vs 0.6 Vi 0.6 200 – 30 to + 80 – 55 to + 150 V V V V V mA °C °C RF inputs Currents Ambient temperature range Storage temperature range Electrical Characteristics VS = 8.5 V, reference point pin 16, fIRF = 1MHz, RG = 50 W, fmod = 0.4 kHz, m = 30%, fIF = 460 kHz, Tamb = + 25 °C, unless otherwise specified Parameters Supply voltage range Supply current, without load, IL = 0 (Pin 11) RF preamplifier and mixer DC input voltages Input impedances Test Conditions / Pin Pin 13 Pin 13 Symbol VS IS Min 7.5 Type 18 23 Max 30 Unit V mA Pin 14, 15 ViRF < 300 µV, ViRF > 10 mV, Pin 14,15 Pin 14, 15 Vi Ri Ci Ri Ci Ro Co DSM 500 VS/2 5.5 25 8.0 22 6.0 6.5 5.0 1....