Features ....................................................................................................................................................................................... 1
Ordering Information .................................................................................................................................................................... 2
Revision History ......................................................................................................................................................................... 13
Rev 1.01
Page 2 of 16
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SiT9347
220 MHz to 725 MHz Endura™ Series Ultra-low Jitter Differential Oscillator
Electrical Characteristics
All Min and Max limits in the Electrical Characteristics tables are specified over temperature and rated operating voltage
with standard output termination shown in the termination diagrams. Typical values are at 25°C at nominal supply voltage.
Table 2. Electrical Characteristics – Common to LVPECL, Low-swing LVPECL, LVDS and HCSL
Parameter
Output Frequency Range
Frequency Stability
Symbol
f
F_stab
Min.
220.000001
-10
-20
-25
-50
First Year Aging
5 Year Aging
10 Year Aging
20 Year Aging
Operating Temperature Range
F_1y
F_5y
F_10y
F_20y
T_use
-0.7
-1.1
-1.3
-1.5
-20
-40
-40
-40
Acceleration (g) sensitivity,
Gamma Vector
Supply Voltage
F_g
–
Typ.
–
–
–
–
–
±0.4
±0.7
±0.8
±1.0
–
–
–
–
–
Max.
725
+10
+20
+25
+50
+0.7
+1.1
+1.3
+1.5
+70
+85
+95
+105
0.1
Unit
MHz
ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppm
°C
°C
°C
°C
ppb/g
Extended Industrial
Low sensitivity grade; total gamma over 3 axes; 15 Hz to 2 kHz;
MIL-PRF-55310, computed per section 4.8.18.3.1
At 85°C
At 85°C
At 85°C
At 85°C
Extended Commercial
Industrial
Condition
Accurate to 6 decimal places
Inclusive of initial tolerance, operating temperature, rated power
supply voltage and load variations
Frequency Range
Frequency Stability
Temperature Range
Rugged Characteristics
Supply Voltage
Vdd
2.97
2.70
2.52
2.25
Input Voltage High
Input Voltage Low
Input Pull-up Impedance
Duty Cycle
Startup Time
OE Enable/Disable Time
VIH
VIL
Z_in
DC
T_start
T_oe
70%
–
–
45
–
–
3.30
3.00
2.80
2.50
–
–
100
–
–
–
3.63
3.30
3.08
2.75
–
30%
-
55
3.0
3.8
V
V
V
V
Vdd
Vdd
kΩ
%
ms
µs
Measured from the time Vdd reaches its rated minimum value.
f = 322.265625 MHz. Measured from the time OE pin reaches
rated VIH and VIL to the time clock pins reach 90% of swing and
high-Z. See
Figure 8
and
Figure 9
Pin 1, OE
Pin 1, OE
Pin 1, OE logic high or logic low
Input Characteristics
Output Characteristics
Startup and OE Timing
Rev 1.01
Page 2 of 16
www.sitime.com
SiT9347
220 MHz to 725 MHz Endura™ Series Ultra-low Jitter Differential Oscillator
Table 3. Electrical Characteristics – LVPECL Specific
Parameter
Current Consumption
OE Disable Supply Current
Output Disable Leakage Current
Maximum Output Current
Output High Voltage
Output Low Voltage
Output Differential Voltage Swing
Rise/Fall Time
Output High Voltage
Output Low Voltage
Output Differential Voltage
Swing
Rise/Fall Time
RMS Period
Jitter
[3]
Symbol
Idd
I_OE
I_leak
I_driver
VOH
VOL
V_Swing
Tr, Tf
VOH
VOL
V_Swing
Tr, Tf
T_jitt
T_phj
Min.
–
–
–
–
Vdd-1.15
Vdd-2.0
1.2
–
Typ.
–
–
0.15
–
–
–
1.6
225
Max.
94
63
–
33
Vdd-0.7
Vdd-1.5
2.0
330
Unit
mA
mA
A
mA
V
V
V
ps
Condition
Excluding Load Termination Current, Vdd = 3.3 V or 2.5 V
OE = Low
OE = Low
Maximum average current drawn from OUT+ or OUT-
See
Figure 4
See
Figure 4
See
Figure 5
20% to 80%, see
Figure 5
Current Consumption
Output Characteristics for LVPECL
Output Characteristics for Low-swing LVPECL
–
Vdd-1.2
Vdd-0.75
V
See
Figure 4
Vdd-1.8
0.4
0.4
–
–
–
–
1
1
225
1.0
0.220
Vdd-1.25
1.2
1.6
320
1.6
0.270
V
V
V
ps
Ps
Ps
See
Figure 4
Output frequency 1 to 220 MHz, See
Figure 5
Output frequency greater than 220 MHz, See
Figure 5
20% to 80%. See
Figure 5
f = 100, 156.25 or 212.5 MHz, Vdd = 3.3 V or 2.5 V
f = 322.265625 MHz, Integration bandwidth = 12 kHz to 20 MHz,
all Vdd levels, includes spurs. Temperature ranges -20 to 70°C
and -40 to 85°C
f = 322.265625 MHz, Integration bandwidth = 12 kHz to 20
MHz, all Vdd levels, includes spurs. Temperature ranges -40 to
95°C and -40 to 105°C
f = 322.265625 MHz, IEEE802.3-2005 10GbE jitter mask
integration bandwidth = 1.875 MHz to 20 MHz, Includes spurs,
all Vdd levels
f = 100, 156.25 or 212.5 MHz, Vdd = 3.3 V or 2.5 V
f = 322.265625 MHz, Integration bandwidth = 12 kHz to 20 MHz,
all Vdd levels, includes spurs. Temperature ranges -20 to 70°C
and -40 to 85°C.
f = 322.265625 MHz, Integration bandwidth = 12 kHz to 20 MHz,
all Vdd levels, includes spurs. Temperature ranges -40 to 95°C
and -40 to 105°C
f = 322.265625 MHz, IEEE802.3-2005 10GbE jitter mask
integration bandwidth = 1.875 MHz to 20 MHz, Includes spurs,
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