TA2022AFN

TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA2022AFN TA2022AFN 1.5V AM / FM IF + MPX TA2022AFN is the AM / FM IF + MPX system IC, which is developed for headphone radio in 1.5V use. This is included many functions and this can be used for digital tuning system with IF counter. Features · Suitable for combination with digital tuning system which is included IF counter. · Built−in AM / FM IF count output for IF counter of digital tuning system. FM: 10.7MHz AM: 450kHz · Adjustable for stop pulse sensitivity (in FM mode) · For adopting ceramic discriminator, it is not necessary to adjust the FM QUAD detector circuit. · Built−in AM IF output for AM stereo · MPX input for main signal is independent of that for pilot signal. (MPX input for pilot signal is shared with AM input) · MPX output is high−impedance in power off mode. · Built−in power switch · Low supply current (VCC = 1.2V, Ta = 25°C) FM mode: ICC2 = 5.5mA (typ.) AM mode: ICC3 = 3.7mA (typ.) · Operating supply voltage range (Ta = 25°C) VCC (opr) = 0.95~2.2V · Stereo operating supply voltage range (Ta = 25°C) VCC (opr) = 1.0~2.2V Weight: 0.14 g (typ.) 1 2002-10-30 TA2022AFN 2 2002-10-30 TA2022AFN Terminal Explanation Terminal Voltage: Typical Terminal Voltage at no Signal with The Test Circuit 1 (VCC = 1.2V, Ta = 25°C) Terminal No. Name Function Internal Circuit Terminal Voltage (V) AM FM Referential voltage 1 VREF Bypass terminal for AM RF and FM IF amplifier 0.9 0.9 2 OSC AM OSC 4 MIX Outp...