8T49N240 Datasheet, PDF (45/76 Pages) Integrated Device Technology – FemtoClock NG Ultra-Performance

8T49N240 Datasheet
AC Electrical Characteristics
Table 36.
(LVCMOS
LAoCgiCchLaervaecltserOisntliyc)s, ^,TV_AC=^C
= 3.3V ±5% or 2.5V
-40°C to 85°C ^{[a], [b]}
±5%,
V_CCOx
=
3.3V
±5%,
2.5V
±5%
or
1.8V
±5%
Symbol
Parameter
Test Conditions
Min.
Typ.
Max. Units
f_VCO
f_OUT
t_R / t_F
SR
tsk(b)
odc
SPO
VCO Operating Frequency
LVPECL, LVDS,
Output
HCSL
Frequency
LVCMOS
LVPECL
Output
Rise and Fall Times
LVDS
HCSL
LVCMOS
[c], [d]
LVPECL
Output
LVDS
Slew Rate
HCSL
Bank
Skew^[e],
[f], [g], [h]
LVPECL Q[0:2],
nQ[0:2]
LVDS Q[0:2], nQ[0:2]
HCSL Q[0:2], nQ[0:2]
Output
Duty
Cycle^[i]
LVPECL, LVDS,
HCSL
LVCMOS
Static Phase Offset Variation
Initial Frequency Offset^{[k], [l], [m]}
Output Phase Change in
Fully Hitless Switching^[n]
Q0, Q1, Q2 Outputs
Q3 Output integer divide
Q3 Output non-integer divide
20% to 80%
20% to 80%, V_CCOx = 3.3V
20% to 80%, V_CCOx = 2.5V
20% to 80%
20% to 80%, V_CCOx = 3.3V
20% to 80%, V_CCOx = 2.5V
20% to 80%, V_CCOx = 1.8V
Differential Waveform, Measured
±150mV from Center
Differential Waveform,
Measured
±150mV from Center
V_CCOX = 2.5V
V_CCOX = 3.3V
Measured on Differential Waveform,
±150mV from Center, V_CCOx = 2.5V
Measured on Differential Waveform,
±150mV from Center, V_CCOx = 3.3V
f_IN=f_OUT=156.25 MHz^[j]
Switchover or Entering / Leaving
Holdover State
Switchover or Entering / Leaving
Holdover State
2440
15.25
0.008
0.008
0.008
2
1
1.5
2
3
45
40
-250
-50
2600 MHz
866.67 MHz
433.33
MHz
325
250 MHz
320
500
ps
200
280
ps
200
400
ps
270
470
ps
200
310
ps
240
360
ps
350
550
ps
5.5 V/ns
4
V/ns
5
V/ns
4.8 V/ns
7
V/ns
50
ps
50
ps
50
ps
50
55
%
50
60
%
250
ps
50
ppb
2
ns
©2017 Integrated Device Technology, Inc.
45
May 31, 2017