UPC2800 NEC, UPC2800 Datasheet

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UPC2800

Manufacturer Part Number
UPC2800
Description
UPC2800PREAMPLIFIER FOR INFRARED REMOTE CONTROL
Manufacturer
NEC
Datasheet

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Document No. S12974EJ6V0DS00 (6th edition)
Date Published October 1998 N CP(K)
Printed in Japan
DESCRIPTION
to a PIN photodiode and integrates a high-gain first-stage amplifier, limiter, bandpass filter, detection circuit,
and waveform shaping circuit to provide a receiver preamplifier on a single chip.
FEATURES
• High reliability due to high-frequency lighting fluorescent lamp
• Internal bandpass filter
• Low external components
• ABLC (Automatic Bias Level Control) circuit
• Open-collector output
ORDERING INFORMATION
The PC2800A is a receiver preamplifier for infrared remote control systems. It can be directly connected
Internal trap circuit
Central frequency variable by external resistor: f
Few variation of central frequency thanks to f
Internal output pull-up resistor and power supply filter resistor
Only low external capacitance required
Controls fluctuation of bias level cause by disturbance from external light
Open-collector output (active low) with pull-up resistor (33 k
Part Number
PC2800AGR
PREAMPLIFIER FOR INFRARED REMOTE CONTROL
8-pin plastic SOP (225 mil)
The information in this document is subject to change without notice.
BIPOLAR ANALOG INTEGRATED CIRCUITS
Package
The mark
DATA SHEET
shows major revised points.
O
trimming
O
= 30 to 80 kHz
TYP.)
PC2800A
©
1992

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UPC2800 Summary of contents

Page 1

... PREAMPLIFIER FOR INFRARED REMOTE CONTROL DESCRIPTION The PC2800A is a receiver preamplifier for infrared remote control systems. It can be directly connected to a PIN photodiode and integrates a high-gain first-stage amplifier, limiter, bandpass filter, detection circuit, and waveform shaping circuit to provide a receiver preamplifier on a single chip. ...

Page 2

... CC2 GND O Pin Name Power input pin CC1 Output pin Power output pin CC2 f BPF frequency setting pin O Ground pin C Detection capacitor connection pin D – IN First-stage amplifier gain setting pin + IN Signal input pin PC2800A CC1 Wave- ...

Page 3

... V CC1 low) with a pull-up resistor (33 k Connect an external pull-up resistor of 2 From waveform shaping circuit Connect a capacitor CC1 this pin to stabilize the supply voltage to the internal circuit. Internal circuit power line Sets the central frequency of the internal bandpass filter by an external resistance (refer to f istics in CHARACTERISTIC CURVE) ...

Page 4

... IN Signal input pin 8 4 Reverse input pin of the first-stage amplifier. 2.5 V Connect a capacitor (0. prevent direct current so that the first stage amplifier operates ABLC amplifier. The gain of the amplifier can be adjusted by an external resistor ( (refer limiter tics in CHARACTERISTIC CURVE) ...

Page 5

... Keep the wiring length between the PIN photodiode and pin 8 as short as possible. • Keep the signal lines of pins 2 and 6 as far away as possible from those of pins 7 and 8. • Commonly ground the anode of the PIN photodiode and the external capacitor connected to pin 7. Separate the GND and power GND of pin 6 from these. ...

Page 6

ELECTRICAL SPECIFICATIONS Absolute Maximum Ratings ( Parameter Symbol Supply voltage V CC Output current I OUT Input voltage V IN Permissible package loss P D Operating temperature T A Storage temperature T stg Caution If ...

Page 7

... Note 1 Note 1. The relation between 5 mended value follows: f (kHz) O 32.7 36.0 36.7 38.0 40.0 56.7 70.0 140 160 180 ( Note 2. This is the value of a resistor that is externally con- nected as follows kHz p 0. Voltage gain = 1.0 PC2800A Characteristics 130 k 2 ...

Page 8

APPLICATION CIRCUIT EXAMPLE (f PIN photodiode Supply voltage Output Note PH302, 302C, 310, 320, etc kHz) O 0.01 F 0.01 F Note – ...

Page 9

PACKAGE DRAWINGS 8 PIN PLASTIC SOP (225 mil NOTE Each lead centerline is located within 0. its true position (T.P.) at maximum material condition. 5 detail of lead end ...

Page 10

... Solder this product under the following recommended conditions. For details of the recommended soldering conditions, refer to information document Semiconductor Device Mounting Technology Manual (C10535E). For soldering methods and conditions other than those recommended, consult NEC. Surface Mount Type PC2800AGR: 8-pin plastic SOP (225 mil) ...

Page 11

PC2800A 11 ...

Page 12

... Specific: Aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems or medical equipment for life support, etc. The quality grade of NEC devices is "Standard" unless otherwise specified in NEC's Data Sheets or Data Books. If customers intend to use NEC devices for applications other than those specified for Standard quality grade, they should contact an NEC sales representative in advance ...

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