IDT
/ ICS
LVDS/LVCMOS CLOCK GENERATOR 4 ICS8402010AKI REV. A AUGUST 28, 2008
ICS8402010I
FEMTOCLOCK™ CRYSTAL-TO-LVDS/LVCMOS CLOCK GENERATOR
TABLE 5. AC CHARACTERISTICS, V
DD
= V
DDO_A
= V
DDO_B
= V
DDO_REF
= V
DDO_C
= 3.3V ± 5%,TA = -40°C TO 85°C
TABLE 3C. LVDS DC CHARACTERISTICS, V
DD
= V
DDO_C
= 3.3V ± 5%,TA = -40°C TO 85°C
TABLE 4. CRYSTAL CHARACTERISTICS
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Ω
ecnaticapaCtnuhS 7Fp
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lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
f
TUO
ycneuqerFtuptuO
/]2:0[CQ
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5.26zHM
TUO_FER52zHM
,]2:0[AQ
]2:0[BQ
66.61zHM
t
)o(ks
;wekStuptuO
2,1ETON
,]2:0[AQ
]2:0[BQ
521sp
t
)b(ks
;wekSknaB
3,2ETON
/]2:0[CQ
]2:0[CQn
06sp
]2:0[AQ 001sp
]2:0[BQ 521sp
t
)Ø(tij
rettiJesahPSMR
4ETON;)modnaR(
/]2:0[CQ
]2:0[CQn
:egnaRnoitargetnI,zHM5.26
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t
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t/
F
tuptuO
emiTllaF/esiR
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]2:0[CQn
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,]2:0[AQ
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%08ot%020540001sp
cdoelcyCytuDtuptuO
/]2:0[CQ
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7435%
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V
DO
egatloVtuptuOlaitnereffiD 003054055Vm
Δ V
DO
V
DO
egnahCedutingaM 05Vm
V
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Δ V
SO
V
SO
egnahCedutingaM 05Vm
IDT
/ ICS
LVDS/LVCMOS CLOCK GENERATOR 5 ICS8402010AKI REV. A AUGUST 28, 2008
ICS8402010I
FEMTOCLOCK™ CRYSTAL-TO-LVDS/LVCMOS CLOCK GENERATOR
TYPICAL PHASE NOISE AT 62.5MHZ (LVDS)
62.5MHz
RMS Phase Jitter (Random)
1.875MHz to 20MHz = 0.375ps (typical)
OFFSET FREQUENCY (HZ)
NOISE POWER
dBc
Hz
Ethernet Filter
Raw Phase Noise Data
Phase Noise Result by adding
Ethernet Filter to raw data
IDT
/ ICS
LVDS/LVCMOS CLOCK GENERATOR 6 ICS8402010AKI REV. A AUGUST 28, 2008
ICS8402010I
FEMTOCLOCK™ CRYSTAL-TO-LVDS/LVCMOS CLOCK GENERATOR
3.3V LVDS OUTPUT LOAD AC TEST CIRCUIT 3.3V LVCMOS OUTPUT LOAD AC TEST CIRCUIT
LVCMOS BANK SKEW
LVCMOS OUTPUT SKEW
PARAMETER MEASUREMENT INFORMATION
RMS PHASE JITTER
SCOPE
Qx
nQx
3.3V±5%
POWER SUPPLY
+–
Float GND
LVDS
SCOPE
Qx
LVCMOS
GND
1.65V±5%
-1.65V±5%
V
DD
,
V
DDO_A,
V
DDO_B,
V
DDO_REF
1.65V±5%
tsk(o)
V
DDO
2
V
DDO
2
Qx
Qy
V
DDA
V
DD
,
V
DDO_C
V
DDA
LVDS BANK SKEW
tsk(b)
nQCx
QCx
nQCy
QCy
tsk(b)
V
DDO
2
V
DDO
2
QXx
QXy
Where X = A or B
Phase Noise Mas
k
Offset Frequency
f
1
f
2
Phase Noise Plot
RMS Jitter = Area Under the Masked Phase Noise Plot
Noise Power

8402010AKILF

Mfr. #:
Manufacturer:
IDT
Description:
Clock Generators & Support Products ICS
Lifecycle:
New from this manufacturer.
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