CDC857-2, CDC857-3

2.5-/3.3-V PHASE-LOCK LOOP CLOCK DRIVERS

SCAS627A – SEPTEMBER 1999 – DECEMBER 1999

10

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

Yx or FBIN

tpd

CLKIN

Yx

tWH

tc

Yx

NOTE A: Duty cycle = tWH/tc

Figure 6. Output Duty Cycle

Yx

tc(n)

tc(n+1)

NOTE A: Cycle-to-cycle jitter = |tc(n) – tc(n+1)| over 2000 consecutive cycles.

Figure 7. Cycle-to-Cycle Jitter