4©2016 Integrated Device Technology, Inc Revision A April 20, 2016
843N252-45 Data Sheet
Table 4C. LVPECL DC Characteristics, V
CC
= 3.3V ± 5%, V
EE
= 0V, T
A
= 0°C to 70°C
NOTE 1: Output termination with 50 to V
CC
– 2V.
Table 5. Crystal Characteristics
AC Electrical Characteristics
Table 6. AC Characteristics, V
CC
= V
CCOA
= 3.3V ± 5%, V
EE
= 0V, T
A
= 0°C to 70°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.
NOTE: Using a 25MHz, 12pF quartz crystal.
NOTE 1: Please refer to the Phase Noise plots.
Symbol Parameter Test Conditions Minimum Typical Maximum Units
V
OH
Output High Voltage; NOTE 1 V
CC
– 1.4 V
CC
– 0.75 V
V
OL
Output Low Voltage; NOTE 1 V
CC
– 2.0 V
CC
– 1.5 V
V
SWING
Peak-to-Peak Output Voltage Swing 0.55 1.05 V
Parameter Test Conditions Minimum Typical Maximum Units
Mode of Oscillation Fundamental
Frequency 25 MHz
Equivalent Series Resistance (ESR) 50
Shunt Capacitance 7pF
Symbol Parameter Test Conditions Minimum Typical Maximum Units
f
OUT
Output Frequency
QA 125 MHz
QB, nQB 156.25 MHz
tjit(Ø)
RMS Phase Jitter
(Random); NOTE 1
QA
125MHz, Integration Range:
12kHz – 20MHz
0.39 ps
QB, nQB
156.25MHz, Integration Range:
12kHz – 20MHz
0.33 ps
PSNR Power Supply Noise Reduction From DC to 10MHz -60 dB
t
R
/ t
F
Output Rise/Fall Time
QA 20% to 80% 250 500 ps
QB, nQB 20% to 80% 150 300 ps
odc Output Duty Cycle
QA 47 53 %
QB, nQB 48 52 %
