Features ....................................................................................................................................................................................... 1
Ordering Information .................................................................................................................................................................... 2
Revision History ......................................................................................................................................................................... 15
Rev 0.5
Page 2 of 18
www.sitime.com
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, LVDS and HCSL
Parameter
Output Frequency Range
Frequency Stability
Symbol
f
F_stab
Min.
220.000001
-10
Typ.
–
–
Max.
725
+10
Unit
MHz
ppm
Condition
Accurate to 6 decimal places
Inclusive of initial tolerance, operating temperature, rated power
supply voltage and load variations.
Contact SiTime
for ±10 ppm.
Inclusive of initial tolerance, operating temperature, rated power
supply voltage and load variations
Frequency Range
Frequency Stability
-20
-25
-50
First Year Aging
10 Year Aging
20 Year Aging
F_1y
F_10y
F_20y
-0.7
-1.4
-1.6
–
–
–
±0.4
±0.8
±1.0
+20
+25
+50
+0.7
+1.4
+1.6
ppm
ppm
ppm
ppm
ppm
ppm
At 85°C
At 85°C
At 85°C
Temperature Range
Operating Temperature Range
T_use
-20
-40
-40
-40
Acceleration (g) sensitivity,
Gamma Vector
Supply Voltage
F_g
–
–
–
–
+70
+85
+95
+105
°C
°C
°C
°C
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
Extended Commercial
Industrial
Rugged Characteristics
–
–
0.1
ppb/g
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 0.5
Page 2 of 18
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
RMS Period Jitter
[3]
Symbol
Idd
I_OE
I_leak
I_driver
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
1.0
0.220
Max.
94
63
–
33
Vdd-0.7
Vdd-1.5
2.0
330
1.6
0.270
Unit
mA
mA
A
mA
V
V
V
ps
Ps
Ps
Condition
Excluding Load Termination Current, Vdd = 3.3V or 2.5V
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
f = 100, 156.25 or 212.5 MHz, Vdd = 3.3V or 2.5V
f = 322.265625 MHz, Integration bandwidth = 12 kHz to 20 MHz, all
Vdd levels, includes spurs. Temperature ranges -20 to 70ºC and
-40 to 85ºC.
f = 322.265625 MHz, Integration bandwidth = 12 kHz to 20 MHz,
all Vdd levels, includes spurs. Temperature ranges -40 to 95ºC and
-40 to 105ºC
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 = 3.3V or 2.5V
f = 322.265625 MHz, Integration bandwidth = 12 kHz to 20 MHz, all
Vdd levels, includes spurs. Temperature ranges -20 to 70ºC and
-40 to 85ºC.
f = 322.265625 MHz, Integration bandwidth = 12 kHz to 20 MHz,
all Vdd levels, includes spurs. Temperature ranges -40 to 95ºC and
-40 to 105ºC
f = 322.265625 MHz, IEEE802.3-2005 10GbE jitter mask
integration bandwidth = 1.875 MHz to 20 MHz, Includes spurs, all
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