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GL6840B Datasheet(PDF) 6 Page - Hynix Semiconductor

Part # GL6840B
Description  Electronic Two Tone Ringer
PDF  8 Pages
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Manufacturer  HYNIX [Hynix Semiconductor]
Direct Link  http://www.skhynix.com/kor/main.do
Logo HYNIX - Hynix Semiconductor

GL6840B Datasheet(HTML) 6 Page - Hynix Semiconductor

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GL6840
6
Block Diagram
Pin Description
Threshold
Detector
Sweep Frequency
Oscillator
Tone Generation
Oscillator
Output
Stage
Overvoltage
Protection
Bridge
Diode
8
1
3
4
5
6
7
2
PIN
NAME
DESCRIPTION
1,8
LINE
Input terminals to bridge diode. The AC ringing signal from the
telephone line drives the ringer through bridge.
2
GND
Ground
3
Sweep Rate
Control Capacitor
This pin is connected to external capacitor to control the sweeping
frequency(fSWEEP)
4
Output Frequency
Control Resistor
This pin is connected to external resistor to control the two tone
frequency(f1, f2)
5,6
Buzzer
The tone ringer output terminals which have inverse output phase
each others.
7
Rectifier
Capacitor
This pin is connected to external capacitor to change AC ringing
signal into DC voltage.



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