ICS845204 Datasheet, PDF (6/13 Pages) Integrated Device Technology – CRYSTAL-TO-MLVDS PCI EXPRESS™ CLOCK SYNTHESIZER W/SPREAD SPECTRUM

ICS845204
CRYSTAL-TO-MLVDS CLOCK SYNTHESIZER W/SPREAD SPECTRUM
Parameter Measurement Information
ADVANCE INFORMATION
3.3V±5%
POWER SUPPLY
+ Float GND –
V_DD,
V_DDO
M-LV^VD^DS^DA
SCOPE
Qx
nQx
-
3.3V LVDS Output Load AC Test Circuit
V_OH
V_REF
1σ contains 68.26% of all measurements
V_OL
2σ contains 95.4% of all measurements
3σ contains 99.73% of all measurements
4σ contains 99.99366% of all measurements
6σ contains (100-1.973x10^-7)% of all measurements
Reference Point
(Trigger Edge)
Histogram
Mean Period
(First edge after trigger)
-
Period Jitter
nQx
Qx
nQy
Qy
t sk(o)
nQx
Qx
tcycle n
➤
tcycle n+1
➤
tjit(cc) = tcycle n – tcycle n+1
1000 Cycles
Output Skew
Clock
20%
Outputs
80%
t_R
Output Rise/Fall Time
Cycle-to-Cycle Jitter
80%
t_F
V_OD
20%
nQ0:nQ3
Q0:Q3
t _PW
t
PERIOD
odc = ^{t PW} x 100%
t _PERIOD
Output Duty Cycle/Pulse Width/Period
IDT™ / ICS™ M-LVDS CLOCK SYNTHESIZER
6
ICS845204AK SEPTEMBER 25, 2007