gl6851 Hynix Semiconductor, gl6851 Datasheet

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gl6851

Manufacturer Part Number
gl6851
Description
Two Tone Ringer
Manufacturer
Hynix Semiconductor
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
GL6851
Quantity:
5 510
Part Number:
GL6851
Manufacturer:
HYNIX/海力士
Quantity:
20 000
Description
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.
adjustment of the supply initiation current.
Features
Block Diagram
The GL6851 tone ringer is a monolithic device,
Low current consumption.
Designed for telephone bell replacement.
Small size MINIDIP package.
Adjustable 2- frequency tone.
Built-in hysteresis prevents false triggering and rotary dial CHIRPS.
Alarms or other alerting devices.
Adjustable for reduced supply initiation current
Include ESD protection.
The
GL6851
(WITH HYSTERESIS)
CONTROL CIRCUIT
POWER SUPPLY
has
5
4
provision
LOW FREQUENCY
OSCILLATOR
6
3
for
1
HIGH FREQUENCY
OSCILLATOR
2
7
LOWOSC_1
LOWOSC_2
VCC
RSL
Pin Configuration
4
1
2
3
TWO TONE RINGER
1
OUTPUT
AMPLIFIER
8
GL6851
6
5
8
7
GL6851
OUTPUT
HIGHOSC_2
HIGHOSC_1
GND
GL6851

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gl6851 Summary of contents

Page 1

... 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 ...

Page 2

... TEST CONDITION MIN 0.9 SI 9.7 0.4 V =21V, I =-10mA Pin6=6V,Pin7=GND V =21V 10mA Pin6=GND,Pin7=6V R3=191K,C3=6800pF 461 R3=191K,C3=6800pF 576 R2=165K,C2=0.47µF 9 GL6851 UNIT V mW ¡ É ¡ É TYP MAX UNIT - - 29 2.0 3.7 mA 11.0 12.0 V 1.0 2 512 ...

Page 3

... High Frequency Time Constant Adjustment Pins f and f are controlled externally =1/1.504R Tone output 1 8 RSL 6851 7K - 13K GL6851 and 1/1.203R 10K VOLUME R3 C3 15K 1300 : 8 ohm ...

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