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GL6851

Hynix Semiconductor
Part Number GL6851
Manufacturer Hynix Semiconductor
Description TWO TONE RINGER
Published Mar 23, 2005
Detailed Description GL6851 GL6851 TWO TONE RINGER Description The GL6851 tone ringer is a monolithic device, which incorporates two oscilla...
Datasheet PDF File GL6851 PDF File

GL6851
GL6851

Overview
GL6851 GL6851 TWO TONE RINGER Description The GL6851 tone ringer is a monolithic device, which incorporates two oscillators, an output amplifier and a power supply control circuit.
The oscillator frequencies can be adjusted over a wide range by selection of external components.
One oscillator, normally operated at a low frequency, causes the second oscillator to alternate between its nominal frequency, and a related higher frequency.
The resulting output is a distinct warbling tone.
The output amplifier will drive either a transformer coupled loudspeaker or a piezo-ceramic transducer.
The device can be powered from a telephone line or a fixed d.
c.
supply.
The GL6851 has provision for adjustment of the supply initiation current.
Pin Configuration VCC 1 RSL 2 8 OUTPUT 7 HIGHOSC_2 GL6851 LOWOSC_1 3 LOWOSC_2 4 6 5 HIGHOSC_1 GND Features • • • • • • • • Low current consumption.
Designed for telephone bell replacement.
Small size MINIDIP package.
Adjustable 2- frequency tone.
Built-in h...


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