D95IN353

+

-

+

1

7

f =

R

BIAS

OSC

C

6

R

+

-

+

-

EA

R

2R

R

S

Q

84

5

2

3

5K

5K

5K

NE555

8

4

2

1

5

TO ADDITIONAL

UCX84XAs

1.44

Figure 23: External Duty Cycle Clamp and Multi Unit Synchronization.

D95IN352

+

-

EA

+

R

2R

5

1

2

EXTERNAL

SYNC INPUT

The diode clamp is required if the Sync amplitude is large enough to cause

R

BIAS

OSC

0.01

µF

47

Ω

4

8

R

Figure 22: External Clock Synchronization.

UC2842B/3B/4B/5B - UC3842B/3B/4B/5B

11/15