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UTCTA31001

更新时间： 2024-09-17 22:20:03

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UTCTA31001 数据手册

UTC TA31001 LINEAR INTEGRATED CIRCUIT

TELEPHONE TONE RINGER

DESCRIPTION

The UTC TA31001 is a bipolar integrated circuit

designed for telephone bell replacement. It can also be

used as alarms or other alerting devices.

FEATURES

*Designed for telephone bell replacement.

*Low current drain for multiple extension of lines.

*Adjustable 2-frequency tone.

*Adjustable warbling rate.

*Built-in hysteresis prevents false triggering and

rotary dial 'CHIRPS'.

*Programmable for initiation voltage by simple

external resistor.

DIP-8

BLOCK DIAGRAM

HIGH

OSC

AMP

OUTPUT

LOW

OSC

POWER SUPPLY (WITH HYSTERESIS)

Note:R2,R3,C2 and C3 are parts externally mounted

UTC UNISONIC TECHNOLOGIES CO. LTD

QW-R108-003,A

12 3

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