SC9106 查看數據表（PDF） - Unspecified

零件编号

产品描述 (功能)

生产厂家

SC9106

TONE RINGER

Unspecified 

Silicore

TEST CIRCUIT

_

A

1

8

2

7

6.8K

SC 9106

3

165K +_ 1%

4

6 191K +_1%

5

+

S1 S2

SC9106

APPLICATION CIRCUIT

C1 R1

TIP 0.9uF 560

4

2

RING

D1

C4

22uF/35V

1

RSL

2

3

R2

165K+_1% 4

C2

0.47uF+_5%

C5

8

0.22uF

7

SC9106 191k_+1%

6

R3

C3

6.9nF+_5%

5

10K

SP

1300:8

APPLICATION NOTE

The application circuit illustrates the use of the UTC9106 device in typical

telephone tone ringer application.

The AC ringer signal voltage appears across the TIP and RING inputs of the

circuit and is attenuated by capacitor C1 and resistor R1.

C1 also provides isolation from DC voltage (48V) on the exchanged line.

After full wave rectification by the bridge diode, the waveform is filtered by

capacitor C4 to provide a DC supply for the tone ringer chip.

As this voltage exceeds the initiation voltage (Vsi), oscillation starts.

SHAOXING SILICORE TECHNOLOGY CO.,LTD

3/5

www. Silicore. com. cn

CHMC

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