GL6850

3

PIN DESCRIPTION

PIN NUMBER

PIN FUNCTION

DESCRIPTION

PIN 1

VCC

Operating supply D.C. voltage rectified from ringing signal.

PIN2

TRIG_IN

Oscillator External Trigger/Inhibit pin (must beconnected through

a current limiting resistor, which is used to program the slope of

supply current vs voltage.)

PIN3

LOWOSC_1

PIN 4

LOWOSC_2

PIN 5

GND

Ground

PIN 6

HIGHOSC_1

PIN 7

HIGHOSC_2

PIN 8

OUTPUT

Tone output

APPLICATON CIRCUIT

100K-200K

1300 : 8 ohm

TIP

C1

R1

RING

C4

D1

R2

C2

C5

R3

C3

15K

10K

VOLUME

C1 = 0.9uF

C2 = 0.47uF

C3 = 6.8nF

C4 = 22uF / 35V

C5 = 0.22uF

D1 = 29 V ZD

R1 = 560 ohm

R2 = 165 kohm

R3 = 191 kohm

1

2

3

4

5

6

7

8

GL 6850