5
Precision Edge
SY89875U
Micrel, Inc.
M9999-082407
hbwhelp@micrel.com or (408) 955-1690
V
CC = 2.5V ±5%; TA = –40°C to +85°C; Unless otherwise stated.
Symbol
Parameter
Condition
Min
Typ
Max
Units
f
MAX
Maximum Input Frequency
Output Swing 200mV
2.0
2.5
GHz
t
PD
Differential Propagation Delay
Input Swing < 400mV
590
690
870
ps
Input Swing 400mV
540
690
820
ps
t
SKEW
Within-Device Skew (diff.)
Note 3
515
ps
Part-to-Part Skew (diff.)
Note 3
280
ps
t
RR
Reset Recovery Time
Note 4
600
ps
t
JITTER
Cycle-to-Cycle Jitter
Note 5
1ps
RMS
Total Jitter
Note 6
10
ps
PP
t
r,tf
Rise/Fall Time (20% to 80%)
70
120
200
ps
Note 1.
Measured with 400mV input signal, 50% duty cycle, all outputs loaded with 100 across each output pair, unless otherwise stated.
Note 2.
Specification for packaged product only.
Note 3.
Skew is measured between outputs under identical transitions.
Note 4.
See “Timing Diagram.”
Note 5.
Cycle-to-cycle jitter definition: the variation in period between adjacent cycles over a random sample of adjacent cycle pairs. Tjitter_cc =Tn–Tn+1,
where T is the time between rising edges of the output signal.
Note 6.
Total jitter definition: with an ideal clock input of frequency - fMAX, no more than one output edge in 10
12 output edges will deviate by more than
the specified peak-to-peak jitter value.
AC ELECTRICAL CHARACTERISTICS(Notes 1, 2)
TIMING DIAGRAM
VID
/RESET
IN
/IN
/Q
Q
tPD
tRR
VCC/2
VIN Swing
VOUT Swing