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L3240

Part Number	L3240
Manufacturer	STMicroelectronics
Description	ELETRONIC TWO-TONE RINGER
Published	Mar 22, 2005
Detailed Description	L3240 ELETRONIC TWO-TONE RINGER . . . . . . LOW CURRENT CONSUMPTION, IN ORDER TO ALLOW THE PARALLEL OPERATION OF 4 DEV...
Datasheet	L3240 PDF File

Overview

L3240 ELETRONIC TWO-TONE RINGER .
LOW CURRENT CONSUMPTION, IN ORDER TO ALLOW THE PARALLEL OPERATION OF 4 DEVICES INTEGRATED RECTIFIER BRIDGE WITH ZENER DIODES TO PROTECT AGAINST OVERVOLTAGES LITTLE EXTERNAL CIRCUITRY TONE AND SWITCHING FREQUENCIES ADJUSTABLE BY EXTERNAL COMPONENTS INTEGRATED VOLTAGE AND CURRENT HYSTERESIS COMPLEMENTARY OUTPUT CONFIGURATION Minidip SO8 ORDERING NUMBERS : L3240B1 (Minidip) L3240D1 (SO8) DESCRIPTION L3240 is a monolithic integrated circuit designed to replace the mechanical bell in telephone sets, in connectionwith an electro acoustical converter.
The device can drive either directly a piezo ceramic converter (buzzer) or a small loudspeaker.
In th...

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