Features: • 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.• External t...
GL6850: Features: • Low current consumption.• Designed for telephone bell replacement.• Small size MINIDIP package.• Adjustable 2- frequency tone.• Built-in hysteresis prevents...
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CHARACTERISTICS |
SYMBOL |
VALUE |
UNIT |
Supply Voltage |
V CC |
30 |
V |
Power Dissipation |
Po |
400 |
mW |
Operating Temperature |
Topr |
-25 to 65 |
·· |
Storage Temperature |
Tstg |
-65 to 150 |
·· |
The GL6850 tone ringer is a monolithic device, which incorporates two oscillators, and output amplifier and a power supply control circuit. The o scillator frequencies of GL6850 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 GL6850 can be powered from a telephone line or a fixed d.c. supply. The power control circuit has builtin hysteresis to prevent false triggering and rotary dial chirps. The GL6850 can be triggered externally under logic control.