ICS873991-147 Datasheet, PDF (8/17 Pages) Integrated Device Technology – LOW VOLTAGE, LVCMOS/LVPECL-TO LVPECL/ECL CLOCK GENERATOR

ICS873991-147
LOW VOLTAGE, LVCMOS/LVPECL-TO-LVPECL/ECL CLOCK GENERATOR
PRELIMINARY
PARAMETER MEASUREMENT INFORMATION
2V
V_CC,
V ,V
CCA CCO
LVPECL
V_EE
-1.3V ± -0.165V
OUTPUT LOAD AC TEST CIRCUIT
nQx
Qx
nQy
Qy
t sk(o)
OUTPUT SKEW
nPCLK
PCLK
nQFB,
nQAx:nQDx
QFB,
QAx:QDx
➤ t(Ø)
SCOPE
Qx
nQx
V_CC
nPCLK
V
PP
PCLK
Cross Points
V
CMR
V_EE
DIFFERENTIAL INPUT LEVELS
nQFB,
nQAx:nQDx
QFB,
QAx:QDx
tcycle n
➤
tcycle n+1
➤
tjit(cc) = tcycle n – tcycle n+1
1000 Cycles
CYCLE-TO-CYCLE JITTER
V_OH
nQxx
V_OL
Qxx
V_OH
nQyy
V_OL
Qyy
tsk(ω)
STATIC PHASE OFFSET
Clock
20%
Outputs
80%
t_R
OUTPUT RISE/FALL TIME
80%
t_F
V_{SW I N G}
20%
MULTIPLE FREQUENCY SKEW
nQFB,
nQAx:nQDx
QFB,
QAx:QDx
t _PW
t
PERIOD
odc = ^{t PW} x 100%
t _PERIOD
OUTPUT DUTY CYCLE/PULSE WIDTH/PERIOD
IDT^™ / ICS^™ LVPECL/ECL CLOCK GENERATOR
8
ICS873991AY-147 REV. A AUGUST 10, 2007