
IDT / ICS LVCMOS/LVTTL ZERO DELAY CLOCK BUFFER
6
ICS86004BG-01 REV. D JANUARY 19, 2009
ICS86004-01
62.5MHZ TO 250MHZ, 1:4 LVCMOS/LVTTL ZERO DELAY CLOCK BUFFER
3.3V CORE/2.5V OUTPUT LOAD AC TEST CIRCUIT
3.3V CORE/3.3V OUTPUT LOAD AC TEST CIRCUIT
CYCLE-TO-CYCLE JITTER
OUTPUT SKEW
Q0:Q3
V
DDO
2
V
DDO
2
V
DDO
2
tcycle n
tcycle n+1
tjit(cc) = tcycle n – tcycle n+1
1000 Cycles
tcycle n
tcycle n+1
tsk(o)
V
DDO
2
V
DDO
2
Qy
Qx
STATIC PHASE OFFSET
(where
t () is any random sample, and t() mean is the average
of the sampled cycles measured on controlled edges)
t () mean = Static Phase Offset
t()
V
DD
2
V
DD
2
CLK
FB_IN
PARAMETER MEASUREMENT INFORMATION
2.5VCORE/ 2.5V OUTPUT LOAD AC TEST CIRCUIT
SCOPE
Qx
LVCMOS
GND
1.25V±5%
-1.25V±5%
V
DD,
V
DDA,
V
DDO
SCOPE
Qx
LVCMOS
GND
1.65V±5%
-1.65V±5%
SCOPE
Qx
LVCMOS
GND
1.25V±5%
-1.25V±5%
V
DD,
V
DDA,
V
DDO
V
DD,
V
DDA
V
DDO
2.05V±5%