ICS841S01 Datasheet, PDF (9/16 Pages) Integrated Device Technology – PCI EXPRESS™ CLOCK GENERATOR

ICS841S01
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
SRCC0
SRCT0
ttccyycle n
➤
ttccycle n+11
➤
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
SRCC0
SRCT0
t _PW
t
PERIOD
odc = ^{t PW} x 100%
t _PERIOD
Clock _20%
Outputs
80%
t_R
80%
t_F
V_{SW I N G}
20%
OUTPUT DUTY CYCLE/PULSE WIDTH/PERIOD
IDT^™ / ICS^™ PCI EXPRESS CLOCK GENERATOR
OUTPUT RISE/FALL TIME
9
ICS841S01BG REV. B MAY 23, 2007