7338-112497-3

Tw

Tw

ø

FIGURE 2. OUTPUT CONDUCTION ANGLE, Ø

SYNC

TRIG

SENSE

SLAVE

Ø

OFF/STATE 0

OFF/ STATE 0

159˚/STATE 1

107˚/STATE 2

< 41˚/STATE 2

159˚/STATE 1

FIGURE 3.

OUTPUT PHASE ANGLE

OFF/STATE 0

107˚/STATE 2

41˚/STATE 2

DIGITAL

COMPARATOR

SYNC

PHASE-ANGLE

POINTER

PHASE-

LOCK

LOOP

CONTROL

LOGIC

BUF

BUF

BUF

SYNC

CAP

SENSE

SLAVE

FIGURE 4.

LS7338 BLOCK DIAGRAM

TRIG

OSC/TIMER

OSC

(+V)

(-V)

DRIVER

4

8

7

1

2

6

5

3

The information included herein is believed to be

accurate and reliable. However, LSI Computer Systems,

Inc. assumes no responsibilities for inaccuracies, nor for

any infringements of patent rights of others which may

result from its use.