UPC2807A Datasheet | NEC

DESCRIPTION The µ PC2807 and 2807A are semiconductors integrated circuit developed as preamplifiers for the receiver module of infrared remote controllers. These preamplifiers can be directly connected to a PIN photodiode, and integrate a high-gain first stage amplifier, limiter, bandpass filter, detector circuit, and waveform-shaping circuit on a single chip. FEATURES - Only PIN photodiode required as an external ponent. - Following carrier frequencies (f O) selectable (five types): µ PC2807 : f O = 32.7, 36.0, 36.7, 37.9 k Hz µ PC2807A : f O = 40.0 k Hz - Fixed trap frequency f T = 54 k Hz - Active-low output - Supplied in form of wafer APPLICATION - Receiver module of infrared remote controller ORDERING INFORMATION Part Number Condition in shipment Wafer Wafer µ PC2807W µ PC2807AW Contact an NEC sales representative in advance since a memorandum on product quality need to be prepared for shipment in the form of wafer. The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version. Not all devices/types available in every country. Please check with local NEC representative for availability and additional information. Document No. S13198EJ1V0DS00 (1st edition) Date Published May 2000 NS CP (K) Printed in Japan The mark 5 shows major revised points. 1998, 2000 µ PC2807, 2807A BLOCK DIAGRAM VCC 6 ABLC First-stage Limiter amplifier amplifier TRAP BPF Detector PAD1 3 Waveform-shaping circuit 22 kΩ 5 OUT I/V Carrier elimination TRAP skip Trimming circuit f O setting 4 S3 2 S2 1 S1 PAD6 PAD4 PAD5 PAD3 GND2 GND1 Data Sheet S13198EJ1V0DS00...