GL6840A Overview
GL6840A are monolithic integrated circuits designed to replace the mechanical bell in telephone sets, in connection with an electro acoustical converter. The device can drive either directly a piezo ceramic converter(buzzer) or a small loudspeaker. In this case a transformer is needed.
GL6840A Key Features
- Low current consumption, in order to allow the 1000 f 2 = 0.717 x f1 fsweep = parallel operation of 4 devices C1(- Ý )
- Integrated rectifier bridge with zener diodes to 1- Þ 2.2- Ú protect against overvoltages Buzzer
- Little external circuitry
- Tone and switching frequencies adjustable by VAB Line 8 5 external ponents GL6840A 7 6 £ «
- Integrated voltage and current hysteresis 1 2 3 4 10- Þ
- Bridge output configuration VS C1 R1 14- Ú 100- Ý
- e R1(- Ú )