ICS874005 Datasheet, PDF (5/12 Pages) Integrated Circuit Systems – PCI EXPRESS TM JITTER ATTENUATOR

Integrated
Circuit
Systems, Inc.
ICS874005
PCI EXPRESS™
JITTER ATTENUATOR
PARAMETER MEASUREMENT INFORMATION
V_DD,
V_DDO V_DDA
V_DD
3.3V±5%
POWER SUPPLY
+ ^{Float GND–}
LVDS
Qx ^SCOPE
nQx
nCLK
V
PP
CLK
GND
Cross Points
V
CMR
3.3V LVDS OUTPUT LOAD AC TEST CIRCUIT
DIFFERENTIAL INPUT LEVEL
nQA0, nQA1
nQB0:nQB2
QA0, QA1
QB0:QB2
nQx
Qx
tcycle n
➤
tcycle n+1
➤
nQy
t jit(cc) = tcycle n –tcycle n+1
Qy
1000 Cycles
t sk(o)
CYCLE-TO-CYCLE JITTER
Clock
20%
Outputs
80%
t_R
80%
t_F
OUTPUT SKEW
V_{SW I N G}
20%
nQA0, nQA1
nQB0:nQB2
QA0, QA1
QB0:QB2
t _PW
t
PERIOD
odc = ^{t PW} x 100%
t _PERIOD
OUTPUT RISE/FALL TIME
V_DD
DC Input LVDS
out
➤
100
V_OD/Δ V_OD
out
OUTPUT DUTY CYCLE/PULSE WIDTH/PERIOD
V_DD
out
DC Input LVDS
out
➤
V_OS/Δ V_OS
DIFFERENTIAL OUTPUT VOLTAGE SETUP
874005AG
OFFSET VOLTAGE SETUP
www.icst.com/products/hiperclocks.html
5
REV. A JANUARY 25, 2006