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GL3276AのメーカーはHynix Semiconductorです、この部品の機能は「Less changes of malfunction associated with a high-frequency lighting fluorscent lamp internal trap circuit.」です。 |
部品番号 | GL3276A |
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部品説明 | Less changes of malfunction associated with a high-frequency lighting fluorscent lamp internal trap circuit. | ||
メーカ | Hynix Semiconductor | ||
ロゴ | |||
このページの下部にプレビューとGL3276Aダウンロード(pdfファイル)リンクがあります。 Total 4 pages
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.
Features
• 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.
Block Diagram
Pin configuration
(SOP)
VCC1
Out
VCC2
fo
18
27
GL3276A
36
45
IN+
IN-
CD
GND
4
f0
3 VCC2
RS
1 VCC1
IN+
20
ABLC
Initial
Stage
amplifier
IN-
7
R1
C1
Limiter
BPF
+
TRAP
Detector
GND
5
CD
20
C2
RL
OUT
2
OUTPUT
1
1 Page GL3276A
Pin Description
NO. SYMBOL
1 VCC1
3 VCC2
5 GND
Power input
Power output
Ground
8 IN + Input
7
IN -
Initial amplifier
Gain setup
BPF
4 fo frequency
setup
6
CD
Detection
capacitor
2
OUT
Output
PIN FUNCTION
• Apply a voltage of 5V ¡ ¾10 % to pin 1.
As the power is output to pin 3 through the internal
power filter resistance, connect an electrolytic
capacitor to pin 3.
• With an internal impedance of 110 K§ Ù(typ.) pin 8
can accept a PIN photodiode directly. An automatic
bias level control (ABLC) circuit prevents the input
from being saturated by external light,
assuring bias level stability for the input pin.
• Initial amplifier differential inverted output. Its gain
can be set up with an external impedance.
• The central frequency of the band-pass filter can be
varied with an external resistance. A built-in trap
circuit prevents malfunctions associated with a high-
frequency lighting fluorescent lamp.
• Pin to which a detection capacitor is connected.
• Open collector output with pull-up resistance.
Its capability to drive a CMOS or TTL makes for easy
connection with a receiving microcomputer.
The GL3276A has an active low output.
Sample Application Circuits
8 Pin Plastic
SOP
Photo diode
C1 1500pF 0.01µF
R1 0 to 1k
87
IN + IN -
65
CD GND
GL3276A
VCC1
1
OUT
2
VCC2
3
f0
4
Power
supply
Output
130 k§ Ù(R2)
47 µF
3
3Pages | |||
ページ | 合計 : 4 ページ | ||
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PDF ダウンロード | [ GL3276A データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
GL3276 | Less changes of malfunction associated with a high-frequency lighting fluorscent lamp internal trap circuit. | Hynix Semiconductor |
GL3276A | Less changes of malfunction associated with a high-frequency lighting fluorscent lamp internal trap circuit. | Hynix Semiconductor |