SiT8209
High Frequency, Ultra Performance Oscillator
The Smart Timing Choice
The Smart Timing Choice
Features
Applications
Any frequency between 80.000001 and 220 MHz accurate to 6
decimal places
100% pin-to-pin drop-in replacement to quartz-based oscillators
Ultra low phase jitter: 0.5 ps (12 kHz to 20 MHz)
Frequency stability as low as ±10 PPM
Industrial or extended commercial temperature range
LVCMOS/LVTTL compatible output
Standby or output enable modes
Standard 4-pin packages: 2.5 x 2.0, 3.2 x 2.5, 5.0 x 3.2, 7.0 x 5.0 mm
2
Outstanding silicon reliability of 2 FIT or 500 million hour MTBF
Pb-free, RoHS and REACH compliant
Ultra short lead time
SATA, SAS, Ethernet, 10-Gigabit Ethernet, SONET, PCI
Express, video, Wireless
Computing, storage, networking, telecom, industrial control
Electrical Characteristics
Parameter
Output Frequency Range
Frequency Stability
Symbol
f
F_stab
Min.
80.000001
-10
-20
-25
-50
Operating Temperature Range
Supply Voltage
T_use
Vdd
-20
-40
1.71
2.25
2.52
2.97
Current Consumption
OE Disable Current
Idd
I_OD
–
–
–
–
Standby Current
I_std
–
–
Duty Cycle
Rise/Fall Time
Output Voltage High
Output Voltage Low
Input Voltage High
Input Voltage Low
Input Pull-up Impedance
Startup Time
OE Enable/Disable Time
Resume Time
RMS Period Jitter
RMS Phase Jitter (random)
First year Aging
10-year Aging
DC
Tr, Tf
VOH
VOL
VIH
VIL
Z_in
T_start
T_oe
T_resume
T_jitt
T_phj
F_aging
45
40
–
90%
–
70%
–
–
2
–
–
–
–
–
–
-1.5
-5
Typ.
–
–
–
–
–
–
–
1.8
2.5
2.8
3.3
34
30
–
–
–
–
–
–
1.2
–
–
–
–
100
–
7
–
–
1.5
2
0.5
–
–
Max.
220
+10
+20
+25
+50
+70
+85
1.89
2.75
3.08
3.63
36
33
31
30
70
10
55
60
2
–
10%
–
30%
250
–
10
115
10
2
3
1
+1.5
+5
Unit
MHz
PPM
PPM
PPM
PPM
°C
°C
V
V
V
V
mA
mA
mA
mA
μA
μA
%
%
ns
Vdd
Vdd
Vdd
Vdd
kΩ
MΩ
ms
ns
ms
ps
ps
ps
PPM
PPM
Pin 1, OE or ST
Pin 1, OE or ST
Pin 1, OE logic high or logic low, or ST logic high
Pin 1, ST logic low
Measured from the time Vdd reaches its rated minimum value
f = 80 MHz, For other frequencies, T_oe = 100 ns + 3 cycles
In standby mode, measured from the time ST pin crosses
50% threshold. Refer to
Figure 5.
f = 156.25 MHz, Vdd = 2.5V, 2.8V or 3.3V
f = 156.25 MHz, Vdd = 1.8V
f = 156.25 MHz, Integration bandwidth = 12 kHz to 20 MHz
25°C
25°C
No load condition, f = 100 MHz, Vdd = 2.5V, 2.8V or 3.3V
No load condition, f = 100 MHz, Vdd = 1.8V
Vdd = 2.5V, 2.8V or 3.3V, OE = GND, output is Weakly Pulled
Down
Vdd = 1.8 V. OE = GND, output is Weakly Pulled Down
Vdd = 2.5V, 2.8V or 3.3V, ST = GND, output is Weakly Pulled
Down
Vdd = 1.8 V. ST = GND, output is Weakly Pulled Down
f <= 165 MHz, all Vdds.
f > 165 MHz, all Vdds.
15 pF load, 10% - 90% Vdd
IOH = -6 mA, IOL = 6 mA, (Vdd = 3.3V, 2.8V, 2.5V)
IOH = -3 mA, IOL = 3 mA, (Vdd = 1.8V)
Extended Commercial
Industrial
Supply voltages between 2.5V and 3.3V can be supported.
Contact
SiTime
for guaranteed performance specs for supply
voltages not specified in this table.
Inclusive of Initial tolerance at 25 °C, and variations over
operating temperature, rated power supply voltage and load
Condition
Note:
1. All electrical specifications in the above table are specified with 15 pF
±
10% output load and for all Vdd(s) unless otherwise stated.
2. Contact
SiTime
for custom drive strength to drive higher or multiple load, or SoftEdge™ option for EMI reduction.
SiTime Corporation
Rev. 1.0
990 Almanor Avenue
Sunnyvale, CA 94085
(408) 328-4400
www.sitime.com
Revised August 3, 2012
SiT8209
High Frequency, Ultra Performance Oscillator
The Smart Timing Choice
The Smart Timing Choice
Pin Configuration
Pin
Symbol
Output
Enable
1
OE/ ST
Standby
2
3
4
GND
OUT
VDD
Power
Output
Power
[3]
Functionality
H or Open : specified frequency output
L: output is high impedance. Only output driver is disabled.
H or Open
[3]
: specified frequency output
L: output is low (weak pull down). Device goes to sleep mode. Supply
current reduces to I_std.
Electrical ground
Oscillator output
Power supply voltage
GND
2
Top View
OE/ST
1
4
VDD
3
OUT
Note:
3. A pull-up resistor of <10 kΩ between OE/ ST pin and Vdd is recommended in high noise environment
Absolute Maximum
Attempted operation outside the absolute maximum ratings of the part may cause permanent damage to the part. Actual perfor-
mance of the IC is only guaranteed within the operational specifications, not at absolute maximum ratings.
Parameter
Storage Temperature
VDD
Electrostatic Discharge
Soldering Temperature (follow standard Pb free soldering guidelines)
Min.
-65
-0.5
–
–
Max.
150
4
2000
260
Unit
°C
V
V
°C
Thermal Consideration
Package
7050
5032
3225
2520
θ
JA, 4 Layer Board
(°C/W)
191
97
109
117
θ
JA, 2 Layer Board
(°C/W)
263
199
212
222
θ
JC, Bottom
(°C/W)
30
24
27
26
Environmental Compliance
Parameter
Mechanical Shock
Mechanical Vibration
Temperature Cycle
Solderability
Moisture Sensitivity Level
Condition/Test Method
MIL-STD-883F, Method 2002
MIL-STD-883F, Method 2007
JESD22, Method A104
MIL-STD-883F, Method 2003
MSL1 @ 260°C
Rev. 1.0
Page 2 of 7
www.sitime.com
SiT8209
High Frequency, Ultra Performance Oscillator
The Smart Timing Choice
The Smart Timing Choice
Timing Diagram
90% Vdd, 2.5/2,8/3.3V devices
Vdd
95% Vdd, 1.8V devices
Vdd
Pin 4 Voltage
NO Glitch first cycle
ST Voltage
50% Vdd
T_resume
CLK Output
T_start
CLK Output
T_start: Time to start from power-off
T_resume: Time to resume from ST
Figure 4. Startup Timing (OE/ST Mode)
u
Vdd
50% Vdd
T_OE
CLK Output
Figure 5. Standby Resume Timing (ST Mode Only)
OE Voltage
Vdd
OE Voltage
50 % Vdd
CLK Output
T_OE
HZ
T_OE: Time to re-enable the clock output
T_OE:
Time to put the output drive in High Z mode
Figure 6. OE Enable Timing (OE Mode Only)
Figure 7. OE Disable Timing (OE Mode Only)
Note:
6. SiT8209 supports NO RUNT pulses and No glitches during startup or resume.
7. SiT8209 supports gated output which is accurate within rated frequency stability from the first cycle.
Rev. 1.0
Page 4 of 7
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