ICS8741004_1 Datasheet, PDF (7/19 Pages) Integrated Device Technology – DIFFERENTIAL-TO-LVDS/0.7V DIFFERENTIAL PCI EXPRESS™ JITTER ATTENUATOR

ICS8741004
DIFFERENTIAL-TO-LVDS/0.7V DIFFERENTIAL PCI EXPRESS™ JITTER ATTENUATOR
Parameter Measurement Information
V_DD^, _,
33Ω
V_{DDO VDDA}
HCSL
33Ω
GND
RREF = 475Ω
50Ω
Measurement
Point
49.9Ω
2pF
50Ω
Measurement
Point
49.9Ω
2pF
3.3V HCSL Output Load AC Test Circuit
3.3V±5%
POWER SUPPLY
+ Float GND –
V_DD,
V_{DDO VDDA}
LVDS
SCOPE
Qx
nQx
3.3V LVDS Output Load AC Test Circuit
V_DD
CLK
V
OD
CLK
GND
Cross Points
V
OS
Differential Input Level
QA[0:1],
QB[0:1]
QA[0:1],
QB[0:1]
tcycle n
➤
tcycle n+1
➤
tjit(cc) = tcycle n – tcycle n+1
1000 Cycles
Cycle-to-Cycle Jitter
QX0
QX0
QX1
QX1
t sk(b)
Where X is either Bank A or Bank B
Bank Skew
QA[0:1],
QB[0:1]
QA[0:1],
QB[0:1]
t _PW
t
PERIOD
odc = ^{t PW} x 100%
t _PERIOD
Output Duty Cycle/Pulse Width/Period
IDT™ / ICS™ PCI EXPRESS™ JITTER ATTENUATOR
7
ICS8741004AG REV. ANOVEMBER 1, 2007