CY29976AI datasheet(5/10 Pages) CYPRESS

부품명	CY29976AI

상세설명	3.3V, 125-MHz, Multi-Output Zero Delay Buffer

PDF	10 Pages

Scroll/Zoom	100%

제조업체	CYPRESS [Cypress Semiconductor]

홈페이지	http://www.cypress.com

Logo

5 / 10 page

CY29976

Document #: 38-07413 Rev. *A

Page 5 of 10

SYNC Output

In situations were output frequency relationships are not inte-

ger multiples of each other the SYNC output provides a signal

for system synchronization. The CY29976 monitors the rela-

tionship between the QA and the QC output clocks. It provides

a low going pulse, one period in duration, one period prior to

the coincident rising edges of the QA and QC outputs. The

duration and the placement of the pulse depend on the higher

of the QA and QC output frequencies. The following timing

diagram (Figure 1) illustrates various waveforms for the SYNC

output. Note that the SYNC output is defined for all possible

combinations of the QA and QC outputs even though under

some relationships the lower frequency clock could be used

as a synchronizing signal.

SYNC

VCO

1:1 Mode

2:1 Mode

3:1 Mode

3:2 Mode

4:1 Mode

4:3 Mode

6:1 Mode

Figure 1.

CY29976AI 데이터시트(PDF) 5 Page - Cypress Semiconductor