GL3276A

GL3276A GL3276A Description The GL3276A is a bipolar analog ICs specifically developed for use in infrared remote control system receiving preamplifiers. Capable of accepting a photodiode directly, these ICs house a high gain initial amplifier, a limiter, a band-pass filter, a detection circuit and a waveform shaping circuit assembled on a single chip. Pin configuration (SOP) Less changes of malfunction associated with a high-frequency lighting fluorscent lamp internal trap circuit. The central frequency can be varied with an external resistance: fo=30 to 80KHz fo rimming reduce central frequency variance. Few external parts. Internal pull-up resistance and power filter resistance. Lower-capacitance external capacitor Open collector output Open collector output with a pull-up resistance. Features VCC1 Out VCC2 fo 1 2 GL3276A 3 4 8 7 6 5 IN+ INCD GND Block Diagram 4 3 f0 VCC2 RS 1 VCC1 20 BPF Initial Stage amplifier Limiter + TRAP Waveform shaper IN+ Detector RL OUT 2 OUTPUT ABLC IN7 GND 5 CD 20 R1 C1 C2 1 GL3276A Absolute Maximum Ratings(Ta=25 ¡ ) É SYMBOL VCC IOUT PD TOPR TSTG PARAMETER Supply voltage Output Current Allowable power dissipation Operating temperature Storage temperature VALUE 6.0 2.5 270 - 20 to +75 -40 to +125 UNIT V mA mW ¡ É ¡ É Recommended Operating Condition SYMBOL VCC fIN PARAMETER Supply voltage Input frequency MIN 4.5 30 TYP 5.0 38 MAX 5.5 80 UNIT V KHz Electrical characteristics (VCC = 5.0V, Ta = 2.5¡ ) É SYMBOL ...