ICS841S02I Datasheet, PDF (9/17 Pages) Integrated Device Technology – PCI EXPRESS™ CLOCK GENERATOR

ICS841S02I
PCI EXPRESS™ CLOCK GENERATOR
PARAMETER MEASUREMENT INFORMATION
PRELIMINARY
3.3V±5%
3.3V±5%
V_{DD_REF,}
V
DD_SRC
V_DDA
HCSL
GND
475Ω
33Ω
33Ω
100Ω
Measurement
Point
49.9Ω
100Ω
2pF
Measurement
Point
49.9Ω
2pF
0V
3.3V HCSL OUTPUT LOAD AC TEST CIRCUIT
SRCC1:2
SRCT1:2
tcycle n
➤
tcycle n+1
➤
tjit(cc) = tcycle n – tcycle n+1
1000 Cycles
CYCLE-TO-CYCLE JITTER
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)
nSRCx
SRCx
nSRCy
SRCy
t sk(o)
RMS PERIOD JITTER
OUTPUT SKEW
Clock Period (Differential)
Positive Duty
Cycle (Differential)
Negative Duty
Cycle (Differential)
0.0V
Q/nQ
Rise Edge Rate
VIH = +150mV
0.0V
VIL = -150mV
Q/nQ
Fall Edge Rate
DIFFERENTIAL MEASUREMENT POINTS FOR DUTY CYCLE/PERIOD
DIFFERENTIAL MEASUREMENT POINTS FOR RISE/FALL TIME
IDT^™ / ICS^™ PCI EXPRESS CLOCK GENERATOR
9
ICS841S02BGI REV. C NOVEMBER 1, 2007