TA2056FN

TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA2056FN 1.5V Cordless Headphone Receiver TA2056FN The TA2056FN is an infrared ray linear audio signal receiver IC developed for IR cordless headphone systems. It is two built in FM receivers for stereo and muting function etc. Features · Two built−in FM receivers for stereo (f = 2.3 / 2.8MHz) · Excellent spurious radiation by direct detection type · Built−in muting function (retuned noise detection type) · Built−in buffer amplifier for muting signal detection · Built−in muting amplifier · Built−in detector circuit · Muting attenuation (VCC = 1.2V, Ta = 25°C) ATT = 65dB (typ.) · Two built−in RF amplifiers · Low supply current (VCC = 1.2V, Ta = 25°C) ICC = 4.0mA (typ.) · Operating supply voltage range (Ta = 25°C) VCC (opr) = 0.95~2.2V Weight: 0.14g (typ.) (*) Handle with care to prevent devices from deterioration by static electricity. 1 2002-10-30 TA2056FN Block Diagram BPF −+ INA INA RF RF RF LIM GNDA OUTA VCCA INA GND VREF HPF MT IN OUT HPF IN DET OUT QUADA 24 23 22 21 20 19 18 17 16 15 14 13 RFA LIMA MUTE + BUF − BUFA DETA LIMB DETA RFB MUTE DET AFB AFA 1 2 3 4 5 6 7 8 9 10 11 12 INB INB RF RF RF LIM GNDB OUTB VCCB INB VCC MT OUT DET IN LPF QUADB OUTB OUTA OUTA OUTB −+ −+ BPF VCC BPF We recommended 2.3MHz: TH353BFI-8300 (TOKO, INC.) 2.8MHz: TH353BFI-8301 (TOKO, INC.) 2 2002-10-30 TA2056FN Terminal Explanation Terminal Voltage: Typical Voltage at no Signal with Te...