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UTC9106

TONE RINGER

DESCRIPTION

The UTC9106 is a bipolar integrated circuit

designed for telephone bell replacement.

LI

NEAR I

NTEGRATED CI

RCUI

T

FUNCTIONS

*Two oscillators

*Output amplifier

*Power supply control circuit

FEATURES

*Designed for telephone bell replacement.

*Low current drain.

*Small size 'MINIDIP' package.

*Adjustable 2-frequency tone.

*Adjustable warbling rate.

*Built-in hysteresis prevents false triggering and

rotary dial 'CHIRPS'.

*Extension tone ringer modules.

*Alarms or other alerting devices.

*Adjustable for reduced supply initiation current.

DIP-8

BLOCK DIAGRAM

R2

C3

R3

4

7

6

3

C2

LOW

OSC

HIGH

OSC

AMP

8

OUTPUT

1

POWER SUPPLY (WITH HYSTERESIS)

5

2

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

ABSOLUTE MAXIMUM RATINGS

(Ta=25擄C )

Characteristic

Supply Voltage

Power Dissipation

Operating Temperature

Storage Temperature

Symbol

Vcc

Pd

Topr

Tstg

Value

30

400

-45 to 65

-65 to 150

Unit

V

mW

擄C

擄C

YOUW ANG ELECTRONI CO.

CS

LTD

1

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