ICS844071 Datasheet, PDF (7/15 Pages) Integrated Device Technology – FEMTOCLOCKS™ CRYSTAL-TO-LVDS CLOCK GENERATOR

ICS844071
FEMTOCLOCK™CRYSTAL-TO-LVDS CLOCK GENERATOR
Parameter Measurement Information
3.3V±10%
POWER SUPPLY
+ Float GND –
V_DD
V_DDA
LVDS
SCOPE
Qx
nQx
2.5V±5%
POWER SUPPLY
+ Float GND –
V_DD
V_DDA
LVDS
SCOPE
Qx
nQx
-
3.3V LVDS Output Load AC Test Circuit
-
2.5V LVDS Output Load AC Test Circuit
Phase Noise Plot
Phase Noise Mask
f₁ ^{Offset Frequency} f₂
RMS Jitter = Area Under the Masked Phase Noise Plot
RMS Phase Jitter
nQ
Q
t _PW
t
PERIOD
odc = ^{t PW} x 100%
t _PERIOD
Output Duty Cycle/Pulse Width/Period
Clock
20%
Outputs
80%
t_R
80%
t_F
V_OD
20%
V_DD
DC Input LVDS
out
➤
out
V_OS/∆ V_OS
Output Rise/Fall Time
Offset Voltage Setup
IDT™ / ICS™ LVDS CLOCK GENERATOR
7
ICS844071AG SEPTEMBER 26, 2007