GL3277

GL3277 GL3277 PREAMPLIFIER FOR REMOTE CONTROL USE Description Pin Configurations The GL3277 is a bipolar analog ICs specifically developed for use in infrared remote control system VCC receiving preamplifiers. Features CAGC Enhanced immunity against all kinds of disturbance light OUT No occurence of disturbance pulses at the output Output active low DGND Simple applications Support RC-5 code , NEC code Operating frequency : 38kHz¡ ¾ 2.5kHz @ Vcc=5V, Ta=25¡ É Block Diagram NC 7 NC 8 VCC 1 1 2 3 4 8 7 6 5 NC NC AGND IN 8 SOP RL BIAS IN Output stage Input stage Variable amp BPF AGC OUT 3 5 Photo diode 6 AGND 2 CAGC 4 DGND The information in this document is subject to change without notice. 1 GL3277 Absolute Maximum Ratings (Ta=25¡ Characteristics Power Supply Voltage Storage Temperature Range , unless otherwise noted) É Pin 1 - Symbol VCC Tstg Value 6 -40 to +125 Unit Vdc ¡ É Recommended Operating Condition Characteristics Operating Supply Voltage Operating Temperature Range Pin 1 Symbol VCC Ta Value 4.5 to 5.5 0 to 70 Unit Vdc ¡ É Electrical Characteristics Characteristics Operating Supply Current Input Voltage (VCC=5V, Ta=25 ¡ É , foper=38kHz, unless otherwise noted) Symbol Icc VIN Av_max Conditions No Signal MIN 0.3 3.6 0.8 80 40 440 440 4.8 TYP 0.7 4.1 1.3 5 600 600 0.2 5.0 MAX 1.7 4.6 1.8 110 80 770 Unit mA V dB dB kHz REMARK Voltage Gain Av_min BPF Bandwidth ( -3dB ) fBW tpw1 Output Pulse Width tpw2 Low Level Output Voltage Hi...