CDC536

3.3-V PHASE-LOCK LOOP CLOCK DRIVER

WITH 3-STATE OUTPUTS

SCAS378F – APRIL 1994 – REVISED OCTOBER 1998

8

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

tphase error 1

CLKIN

Outputs

Operating

at 1/2 CLKIN

Frequency

Outputs

Operating

at CLKIN

Frequency

tphase error 2

tphase error 3

tphase error 4

tphase error 5

tphase error 6

tphase error 7

tphase error 8

tphase error 9

NOTES: A. Output skew, tsk(o), is calculated as the greater of:

– The difference between the fastest and slowest of tphase error n (n = 1, 2, ...6)

– The difference between the fastest and slowest of tphase error n (n = 7, 8, 9)

B. Process skew, tsk(pr), is calculated as the greater of:

– The difference between the maximum and minimum tphase error n (n = 1, 2, ...6) across multiple devices under identical

operating conditions.

– The difference between the maximum and minimum tphase error n (n = 7, 8, 9) across multiple devices under identical

operating conditions.

Figure 2. Skew Waveforms and Calculations