6©2016 Integrated Device Technology, Inc Revision A February 9, 2016
8S89875I Data Sheet
AC Electrical Characteristics
Table 5. AC Characteristics, V
DD
= 2.5V ± 5%, T
A
= -40°C to 85°C
NOTE: Electrical parameters are guaranteed over the specified ambient operating temperature range, which is established when the device is
mounted in a test socket with maintained transverse airflow greater than 500 lfpm. The device will meet specifications after thermal equilibrium
has been reached under these conditions.
All parameters characterized at 1.7GHz unless otherwise noted.
NOTE 1: Measured from the differential input crossing point to the differential output crossing point.
NOTE 2: Defined as skew between outputs at the same supply voltage and with equal load conditions. Measured at the output differential
cross points.
NOTE 3: This parameter is defined in accordance with JEDEC Standard 65.
NOTE 4: Defined as skew between outputs on different devices operating at the same supply voltage, same temperature, same frequency and
with equal load conditions. Using the same type of inputs on each device, the outputs are measured at the differential cross points.
NOTE 5: Additive Cycle-to-cycle jitter is calculated by: .
NOTE 6: Total Jitter was obtained using the dual-Dirac model and is calculated by: [RMS Multiplier * Random Jitter (R
J
)] + Deterministic Jitter
(D
J
). The RMS multiplier of 14.26 used in the specification above corresponds to a bit error rate (BER) of 10E–12.
NOTE 7: Additive Total Jitter is the difference between the Total Jitter of the input and the output.
Symbol Parameter Test Conditions Minimum Typical Maximum Units
f
IN
Input Frequency 2.5 GHz
t
PD
Propagation Delay;
NOTE 1
IN-to-Q 460 1000 ps
tsk(o) Output Skew; NOTE 2, 3 15 ps
tsk(pp) Part-to-Part Skew; NOTE 3, 4 280 ps
tjit(cc)
Additive Cycle-to-Cycle Jitter, RMS;
NOTE 5
4.1 ps
tjit(j) Additive Total Jitter; NOTE 6, 7 18 ps
t
RR
Reset Recovery Time 600 ps
t
R
/ t
F
Output Rise/Fall Time 60 250 ps
tjit ccoutput
2
tjit ccinput
2
–
