|
ICS874002 Datasheet, PDF (5/10 Pages) Integrated Circuit Systems – PCI EXPRESS JITTER ATTENUATOR | |||
|
◁ |
Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS874002
PCI EXPRESSâ¢
JITTER ATTENUATOR
PARAMETER MEASUREMENT INFORMATION
3.3V
POWER SUPPLY
+ Float GND -
LVDS
SCOPE
Qx
nQx
3.3V LVDS OUTPUT LOAD AC TEST CIRCUIT
nQA0,
nQA1
QA0,
QA1
tcycle n
â¤
tcycle n+1
â¤
tjit(cc) = tcycle n âtcycle n+1
1000 Cycles
VDD
nCLK,
nFB_IN
V
PP
CLK,
FB_IN
GND
Cross Points
DIFFERENTIAL INPUT LEVEL
nQA0,
nQA1
QA0,
QA1
Pulse Width
t
PERIOD
odc = t PW
t PERIOD
V
CMR
CYCLE-TO-CYCLE JITTER
Clock
20%
Outputs
80%
tR
80%
tF
VSW I N G
20%
OUTPUT DUTY CYCLE/PULSE WIDTH/PERIOD
VDD
out
DC Input LVDS
out
â¤
VOS/â VOS
OUTPUT RISE/FALL TIME
VDD
DC Input LVDS
OFFSET VOLTAGE SETUP
out
â¤
100
VOD/â VOD
out
DIFFERENTIAL OUTPUT VOLTAGE SETUP
874002AG
www.icst.com/products/hiperclocks.html
5
REV. A JANUARY 19, 2005
|
▷ |