SiT9365
Standard Frequency Ultra-low Jitter Differential Oscillator
Features
32 standard frequencies from 25 MHz to 322.265625 MHz
LVPECL, LVDS and HCSL output signaling
0.1 ps RMS phase jitter (random) for Ethernet applications
Contact
SiTime
for ±10 ppm frequency stability
Wide temperature range from -40°C to 85°C
Contact
SiTime
for higher temperature range options
Industry-standard packages: 3.2 x 2.5, 7.0 x 5.0 mm
Contact
SiTime
for 5.0 x 3.2 mm package
Applications
10/40/100 GB Ethernet, SONET, SATA, SAS, Fibre Channel
Telecom, networking, instrumentation, storage, servers
Electrical Characteristics
All Min and Max limits in the Electrical Characteristics tables are specified over temperature and rated operating voltage with standard
output termination show in the termination diagrams. Typical values are at 25°C and nominal supply voltage.
Table 1. Electrical Characteristics – Common to LVPECL, LVDS and HCSL
Parameter
Output Frequency Range
Symbol
f
Min.
Typ.
Max.
Unit
MHz
Condition
Refer to
Table 10
for the list of supported frequencies
Frequency Range
32 standard frequencies between
25 MHz and 322.265625 MHz
-10
-20
-25
-50
First Year Aging
Operating Temperature Range
F_1y
T_use
–
-20
-40
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
–
–
–
–
–
–
±1
–
–
3.30
3.00
2.80
2.50
–
–
100
–
–
–
+10
+20
+25
+50
–
+70
+85
Supply Voltage
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 = 156.25 MHz.
Pin 1, OE
Pin 1, OE
Pin 1, OE logic high or logic low
Frequency Stability
Frequency Stability
F_stab
ppm
ppm
ppm
ppm
ppm
°C
°C
At 25°C
Extended Commercial
Industrial. Contact
SiTime
for higher temperature range options
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.
Temperature Range
Input Characteristics
Output Characteristics
Startup and OE Timing
Rev 1.0
September 6, 2017
www.sitime.com
SiT9365
Standard Frequency Ultra-low Jitter Differential Oscillator
Table 2. Electrical Characteristics – LVPECL
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 Phase Jitter (random)
Symbol
Idd
I_OE
I_leak
I_driver
VOH
VOL
V_Swing
Tr, Tf
T_phj
Min.
–
–
–
–
Vdd-1.1
Vdd-1.9
1.2
–
–
–
–
RMS Period Jitter
[1]
Notes:
1. Measured according to JESD65B
T_jitt
–
Typ.
–
–
0.15
–
–
–
1.6
225
0.220
0.225
0.1
1.0
Max.
89
58
–
32
Vdd-0.7
Vdd-1.5
2.0
290
0.270
0.280
–
1.6
Unit
mA
mA
µA
mA
V
V
V
ps
Jitter
ps
ps
ps
ps
f = 156.25 MHz, Integration bandwidth = 12 kHz to 20 MHz, all Vdds.
Includes spurs. 7.0 x 5.0 mm package.
f = 156.25 MHz, Integration bandwidth = 12 kHz to 20 MHz, all Vdds.
Includes spurs, 3.2 x 2.5 mm package.
f = 156.25, IEEE802.3-2005 10GbE jitter mask integration bandwidth =
1.875 MHz to 20 MHz, Includes spurs, all Vdds
f = 100, 156.25 or 212.5 MHz, VDD = 3.3V or 2.5V
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 2
See Figure 2
See Figure 3
20% to 80%, see Figure 2
Current Consumption
Output Characteristics
Table 3. Electrical Characteristics – LVDS
Parameter
Current Consumption
OE Disable Supply Current
Output Disable Leakage Current
Differential Output Voltage
VOD Magnitude Change
Offset Voltage
VOS Magnitude Change
Rise/Fall Time
Symbol
Idd
I_OE
I_leak
VOD
∆VOD
VOS
∆VOS
Tr, Tf
Min.
–
–
–
250
–
1.125
–
–
Typ.
–
–
0.15
–
–
–
–
400
Max.
79
58
–
455
50
1.375
50
470
Unit
mA
mA
µA
mV
mV
V
mV
ps
Jitter
RMS Phase Jitter (random)
T_phj
–
0.215
0.235
–
RMS Period Jitter
[2]
Notes:
2. Measured according to JESD65B
T_jitt
–
0.1
1.0
0.265
0.275
–
1.6
ps
ps
ps
ps
f = 156.25 MHz, Integration bandwidth = 12 kHz to 20 MHz, all Vdds.
Includes spurs. 7.0 x 5.0 mm package.
f = 156.25 MHz, Integration bandwidth = 12 kHz to 20 MHz, all Vdds.
Includes spurs. 5.0 x 3.2 mm package. 0.275 ps.
f = 156.25, IEEE802.3-2005 10GbE jitter mask integration bandwidth =
1.875 MHz to 20 MHz, Includes spurs, all Vdds
f = 100, 156.25 or 212.5 MHz, VDD = 3.3V or 2.5V
Condition
Excluding Load Termination Current, Vdd = 3.3V or 2.5V
OE = Low
OE = Low
See Figure 4
See Figure 4
See Figure 4
See Figure 4
Measured with 2 pF capacitive loading to GND, 20% to 80%, see
Figure 4
Current Consumption
Output Characteristics
Rev 1.0
Page 2 of 12
www.sitime.com
SiT9365
Standard Frequency Ultra-low Jitter Differential Oscillator
Table 4. Electrical Characteristics – HCSL
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
Symbol
Idd
I_OE
I_leak
I_driver
VOH
VOL
V_Swing
Tr, Tf
Min.
–
–
–
–
0.60
-0.05
1.2
–
Typ.
–
–
0.15
–
–
–
1.4
360
Max.
89
58
–
35
0.90
0.08
1.80
465
Unit
mA
mA
µA
mA
V
V
V
ps
Jitter
RMS Phase Jitter (random)
T_phj
–
–
–
RMS Period Jitter
[3]
Notes:
3. Measured according to JESD65B
T_jitt
–
0.220
0.230
0.1
1.0
0.270
0.275
–
1.6
ps
ps
ps
ps
f = 156.25 MHz, Integration bandwidth = 12 kHz to 20 MHz, all Vdds,
Includes spurs, 7.0 x 5.0 mm package.
f = 156.25 MHz, Integration bandwidth = 12 kHz to 20 MHz, all Vdds,
Includes spurs, 3.2 x 2.5 mm package.
f = 156.25, IEEE802.3-2005 10GbE jitter mask integration bandwidth =
1.875 MHz to 20 MHz, Includes spurs, all Vdds
f = 100, 156.25 or 212.5 MHz, VDD = 3.3V or 2.5V
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 2
See Figure 2
See Figure 3
Measured with 2 pF capacitive loading to GND, 20% to 80%,
see Figure 2
Current Consumption
Output Characteristics
Table 5. Pin Description
Pin
1
Map
OE/NC
Output Enable
(OE)
Non Connect
(NC)
2
3
4
5
6
NC
GND
OUT+
OUT-
VDD
NA
Power
Output
Output
Power
[4]
Functionality
H : specified frequency output
L: output is high impedance
H or L or Open: No effect on output frequency or other
device functions
No Connect; Leave it floating or connect to GND for better
heat dissipation
VDD Power Supply Ground
Oscillator output
Complementary oscillator output
Power supply voltage
[5]
Top View
Figure 1. Pin Assignments
Notes:
4. In OE mode, a pull-up resistor of 10 kΩ or less is recommended if pin 1 is not externally driven.
5. A capacitor of value 0.1 µF or higher between Vdd and GND is required. An additional 10 µF capacitor
between Vdd and GND is required for the best phase jitter performance
Rev 1.0
Page 3 of 12
www.sitime.com
SiT9365
Standard Frequency Ultra-low Jitter Differential Oscillator
Table 6. Absolute Maximum Ratings
Attempted operation outside the absolute maximum ratings may cause permanent damage to the part.
Actual performance of the IC is only guaranteed within the operational specifications, not at absolute maximum ratings.
Parameter
VDD
VIH
VIL
Storage Temperature
Maximum Junction Temperature
Soldering Temperature (follow standard Pb-free soldering guidelines)
-0.3
-65
150
130
260
Min.
-0.5
Max.
4.0
VDD + 0.3V
Unit
V
V
V
ºC
ºC
ºC
Table 7. Thermal Considerations
Package
3225, 6-pin
7050, 6-pin
[6]
θ
JA
, 4 Layer Board (°C/W)
80
52
θ
JC
, Bottom (°C/W)
30
19
Notes:
6. Refer to JESD51 for
θ
JA
and
θ
JC
definitions, and reference layout used to determine the
θ
JA
and
θ
JC
values in the above table.
Table 8. Maximum Operating Junction Temperature
Max Operating Temperature (ambient)
70°C
85°C
[7]
Maximum Operating Junction Temperature
95°C
110°C
Notes:
7. Datasheet specifications are not guaranteed if junction temperature exceeds the maximum operating junction temperature.
Table 9. Environmental Compliance
Parameter
Mechanical Shock Resistance
Mechanical Vibration Resistance
Soldering Temperature (follow standard Pb free
soldering guidelines)
Moisture Sensitivity Level
Electrostatic Discharge (HBM)
Charge-Device Model ESD Protection
Latch-up Tolerance
Test Conditions
MIL-STD-883F, Method 2002
MIL-STD-883F, Method 2007
MIL-STD-883F, Method 2003
MSL1 @ 260°C
HBM, JESD22-A114
JESD220C101
2,000
750
JESD78 Compliant
V
V
Value
10,000
70
260
Unit
G
G
°C
Rev 1.0
Page 4 of 12
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SiT9365
Standard Frequency Ultra-low Jitter Differential Oscillator
Waveform Diagrams
Figure 2. LVPECL/HCSL Voltage Levels per Differential Pin (OUT+/OUT-)
Figure 3. LVPECL/HCSL Voltage Levels across Differential Pair
Figure 4. LVDS Voltage Levels per Differential Pin (OUT+/OUT-)
Rev 1.0
Page 5 of 12
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