The Smart Timing Choice
The Smart Timing Choice
SiTime Corporation 990 Almanor Avenue Sunnyvale, CA 94085 (408) 328-4400 www.sitime.com
Rev. 1.0 Revised August 3, 2012
SiT8209
High Frequency, Ultra Performance Oscillator
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.
Features Applications
Any frequency between 80.000001 and 220 MHz accurate to 6
decimal places
SATA, SAS, Ethernet, 10-Gigabit Ethernet, SONET, PCI
Express, video, Wireless
100% pin-to-pin drop-in replacement to quartz-based oscillators Computing, storage, networking, telecom, industrial control
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 mm2
Outstanding silicon reliability of 2 FIT or 500 million hour MTBF
Pb-free, RoHS and REACH compliant
Ultra short lead time
Electrical Characteristics
Parameter Symbol Min. Typ. Max. Unit Condition
Output Frequency Range f 80.000001 – 220 MHz
Frequency Stability F_stab -10 – +10 PPM Inclusive of Initial tolerance at 25 °C, and variations over
operating temperature, rated power supply voltage and load
-20 – +20 PPM
-25 – +25 PPM
-50 – +50 PPM
Operating Temperature Range T_use -20 – +70 °C Extended Commercial
-40 – +85 °C Industrial
Supply Voltage Vdd 1.71 1.8 1.89 V 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.
2.25 2.5 2.75 V
2.52 2.8 3.08 V
2.97 3.3 3.63 V
Current Consumption Idd – 34 36 mA No load condition, f = 100 MHz, Vdd = 2.5V, 2.8V or 3.3V
– 30 33 mA No load condition, f = 100 MHz, Vdd = 1.8V
OE Disable Current I_OD – – 31 mA Vdd = 2.5V, 2.8V or 3.3V, OE = GND, output is Weakly Pulled
Down
– – 30 mA Vdd = 1.8 V. OE = GND, output is Weakly Pulled Down
Standby Current I_std – – 70 μA Vdd = 2.5V, 2.8V or 3.3V, ST = GND, output is Weakly Pulled
Down
––10μA Vdd = 1.8 V. ST = GND, output is Weakly Pulled Down
Duty Cycle DC 45 – 55 % f <= 165 MHz, all Vdds.
40 – 60 % f > 165 MHz, all Vdds.
Rise/Fall Time Tr, Tf – 1.2 2 ns 15 pF load, 10% - 90% Vdd
Output Voltage High VOH 90% – – Vdd IOH = -6 mA, IOL = 6 mA, (Vdd = 3.3V, 2.8V, 2.5V)
IOH = -3 mA, IOL = 3 mA, (Vdd = 1.8V)
Output Voltage Low VOL – – 10% Vdd
Input Voltage High VIH 70% – – Vdd Pin 1, OE or ST
Input Voltage Low VIL – – 30% Vdd Pin 1, OE or ST
Input Pull-up Impedance Z_in – 100 250 kΩPin 1, OE logic high or logic low, or ST logic high
2––MΩPin 1, ST logic low
Startup Time T_start – 7 10 ms Measured from the time Vdd reaches its rated minimum value
OE Enable/Disable Time T_oe – – 115 ns f = 80 MHz, For other frequencies, T_oe = 100 ns + 3 cycles
Resume Time T_resume – – 10 ms In standby mode, measured from the time ST pin crosses
50% threshold. Refer to Figure 5.
RMS Period Jitter T_jitt – 1.5 2 ps f = 156.25 MHz, Vdd = 2.5V, 2.8V or 3.3V
– 2 3 ps f = 156.25 MHz, Vdd = 1.8V
RMS Phase Jitter (random) T_phj – 0.5 1 ps f = 156.25 MHz, Integration bandwidth = 12 kHz to 20 MHz
First year Aging F_aging -1.5 – +1.5 PPM 25°C
10-year Aging -5 – +5 PPM 25°C
The Smart Timing Choice
The Smart Timing Choice
SiT8209
High Frequency, Ultra Performance Oscillator
Rev. 1.0 Page 2 of 7 www.sitime.com
Thermal Consideration
Pin Configuration
Pin Symbol Functionality
1 OE/ ST
Output
Enable
H or Open[3]: specified frequency output
L: output is high impedance. Only output driver is disabled.
Standby
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.
2 GND Power Electrical ground
3 OUT Output Oscillator output
4 VDD Power Power supply voltage
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 Min. Max. Unit
Storage Temperature -65 150 °C
VDD -0.5 4 V
Electrostatic Discharge –2000V
Soldering Temperature (follow standard Pb free soldering guidelines) – 260 °C
Package
θJA, 4 Layer Board
(°C/W)
θJA, 2 Layer Board
(°C/W)
θJC, Bottom
(°C/W)
7050 191 263 30
5032 97 199 24
3225 109 212 27
2520 117 222 26
Environmental Compliance
Parameter Condition/Test Method
Mechanical Shock MIL-STD-883F, Method 2002
Mechanical Vibration MIL-STD-883F, Method 2007
Temperature Cycle JESD22, Method A104
Solderability MIL-STD-883F, Method 2003
Moisture Sensitivity Level MSL1 @ 260°C
1 4
OE/ST VDD
32
GND OUT
Top View
The Smart Timing Choice
The Smart Timing Choice
SiT8209
High Frequency, Ultra Performance Oscillator
Rev. 1.0 Page 3 of 7 www.sitime.com
Notes:
4. Duty Cycle is computed as Duty Cycle = TH/Period.
5. SiT8209 supports the configurable duty cycle feature. For custom duty cycle at any given frequency, contact SiTime.
Phase Noise Plot
Figure 1. Phase Noise, 156.25 MHz, 3.3V, LVCMOS Output
Test Circuit and Waveform
Figure 2. Test Circuit Figure 3. Waveform
103104105106107
-160
-140
-120
-100
-80
-60
-40
Frequency offset (Hz)
Phase noise (dBc/Hz)
Integrated random phase jitter (12kHz to 20MHz): 0.49 ps,RMS
4
1
3
2
0.1µF
Power
Supply
OE/ST Function
Test
Point
15pF
(including probe
and fixture
capacitance)
VDD Vout
Vdd
1kΩ
90% Vdd
High Pulse
(TH)
50%
10% Vdd
Period
tftr
Low Pulse
(TL)
The Smart Timing Choice
The Smart Timing Choice
SiT8209
High Frequency, Ultra Performance Oscillator
Rev. 1.0 Page 4 of 7 www.sitime.com
Timing Diagram
Figure 4. Startup Timing (OE/ST Mode) Figure 5. Standby Resume Timing (ST Mode Only)
u
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.
90% Vdd, 2.5/2,8/3.3V devices
95% Vdd, 1.8V devices Vdd Pin 4 Voltage
CLK Output
T_start
T_start: Time to start from power-off
NO Glitch first cycle
50% Vdd
Vdd ST Voltage
CLK Output
T_resume
T_resume: Time to resume from ST
50% Vdd
Vdd OE Voltage
CLK Output
T_OE
T_OE: Time to re-enable the clock output
50 % Vdd
Vdd OE Voltage
CLK Output
T_OE: Time to put the output drive in High Z mode
HZ
T_OE
The Smart Timing Choice
The Smart Timing Choice
SiT8209
High Frequency, Ultra Performance Oscillator
Rev. 1.0 Page 5 of 7 www.sitime.com
Performance Plots
Figure 8. Idd vs Frequency Figure 9. RMS Period Jitter vs Frequency
Figure 10. Duty Cycle vs Frequency Figure 11. RMS Phase Jitter vs Frequency
Figure 12. Idd vs Temperature, 100 MHz Output Figure 13. Rise Time vs Temperature, 100 MHz Output
Note:
8. All plots are measured with 15pF load at room temperature, unless otherwise stated.
The Smart Timing Choice
The Smart Timing Choice
SiT8209
High Frequency, Ultra Performance Oscillator
Rev. 1.0 Page 6 of 7 www.sitime.com
Notes:
9. Top marking: Y denotes manufacturing origin and XXXX denotes manufacturing lot number. The value of “Y” will depend on the assembly location of the device.
10. A capacitor of value 0.1 µF between Vdd and GND is recommended.
Dimensions and Patterns
Package Size – Dimensions (Unit: mm) [9] Recommended Land Pattern (Unit: mm) [10]
2.7 x 2.4 x 0.75 mm (100% compatible with 2.5 x 2. 0 mm footprint)
3.2 x 2.5 x 0.75 mm
5.0 x 3.2 x 0.75 mm
7.0 x 5.0 x 0.90 mm
YXXXX
2.7 ± 0.05 1.00
0.75 ± 0.05
2.4 ± 0.05
0.85
1.25
0.50
1.9
1.1
1.5
1.0
3.2 ± 0.05
2.5 ± 0.05
2.1
0.9
0.7
0.9
0.75 ± 0.05
#1
#2
#4#3
#2
#1
#3#4
YXXXX
2.2
1.9
1. 4
1.2
5.0 ± 0.05
3.2 ± 0.05
2.39
0.8
1.15
1.1
0.75 ± 0.05
#1
#2
#4
#3
#2
#1
#3
#4
YXXXX
2.54
1.5
1. 6
2.2
5.0 ± 0.05
1.4
1.1
5.08
7.0 ± 0.05
2.6
0.90 ± 0.10
YXXXX
5.08
3.81
2.2
2.0
Rev. 1.0 Page 7 of 7 www.sitime.com
© SiTime Corporation 2012. The information contained herein is subject to change at any time without notice. SiTime assumes no responsibility or liability for any loss, damage or defect of a
Product which is caused in whole or in part by (i) use of any circuitry other than circuitry embodied in a SiTime product, (ii) misuse or abuse including static discharge, neglect or accident, (iii)
unauthorized modification or repairs which have been soldered or altered during assembly and are not capable of being tested by SiTime under its normal test conditions, or (iv) improper
installation, storage, handling, warehousing or transportation, or (v) being subjected to unusual physical, thermal, or electrical stress.
Disclaimer: SiTime makes no warranty of any kind, express or implied, with regard to this material, and specifically disclaims any and all express or implied warranties, either in fact or by
operation of law, statutory or otherwise, including the implied warranties of merchantability and fitness for use or a particular purpose, and any implied warranty arising from course of dealing or
usage of trade, as well as any common-law duties relating to accuracy or lack of negligence, with respect to this material, any SiTime product and any product documentation. Products sold by
SiTime are not suitable or intended to be used in a life support application or component, to operate nuclear facilities, or in other mission critical applications where human life may be involved
or at stake. All sales are made conditioned upon compliance with the critical uses policy set forth below.
CRITICAL USE EXCLUSION POLICY
BUYER AGREES NOT TO USE SITIME'S PRODUCTS FOR ANY APPLICATION OR IN ANY COMPONENTS USED IN LIFE SUPPORT DEVICES OR TO OPERATE NUCLEAR FACILITIES
OR FOR USE IN OTHER MISSION-CRITICAL APPLICATIONS OR COMPONENTS WHERE HUMAN LIFE OR PROPERTY MAY BE AT STAKE.
SiTime owns all rights, title and interest to the intellectual property related to SiTime's products, including any software, firmware, copyright, patent, or trademark. The sale of SiTime products
does not convey or imply any license under patent or other rights. SiTime retains the copyright and trademark rights in all documents, catalogs and plans supplied pursuant to or ancillary to the
sale of products or services by SiTime. Unless otherwise agreed to in writing by SiTime, any reproduction, modification, translation, compilation, or representation of this material shall be strictly
prohibited.
The Smart Timing Choice
The Smart Timing Choice
High Frequency, Ultra Performance Oscillator
SiT8209
Ordering Information
The Part No. Guide is for reference only. To customize and build an exact part number, use the SiTime Part Number
Generator.
Note:
11. Contact SiTime for custom drive strength to drive higher or multiple load, or SoftEdge™ option for EMI reduction.
Additional Information
Document Description Download Link
Manufacturing Notes Tape & Reel dimension, reflow profile and other manufacturing
related info
http://www.sitime.com/component/docman/doc_download/85-manu
facturing-notes-for-sitime-oscillators
Qualification Reports RoHS report, reliability reports, composition reports http://www.sitime.com/support/quality-and-reliability
Performance Reports Additional performance data such as phase noise, current
consumption and jitter for selected frequencies
http://www.sitime.com/support/performance-measurement-report
Termination Techniques Termination design recommendations http://www.sitime.com/support/application-notes
Layout Techniques Layout recommendations http://www.sitime.com/support/application-notes
Frequency
80.000001 to 220.000000 MHz
Part Family
“SiT8209”
Revision Letter
“A” is the silicon revision
Temperature Range
“I” Industrial, -40 to 85ºC
Voltage Supply
“18” for 1.8V ±5%
“25” for 2.5V ±10%
“28” for 2.8V ±10%
“33” for 3.3V ±10%
Packaging
Blank for Bulk
Output Driver Strength
“–” Default
Feature Pin
“E” for Output Enable
“S” for Standby
“C” Ext. Commercial, -20 to 70ºC
Frequency Tolerance
“2” for ±25 PPM
“3” for ±50 PPM
Package
“2” 3.2 x 2.5
“3” 5.0 x 3.2
“T”: Tape & Reel, 3K reel
“Y”: Tape & Reel, 1K reel
“8” 7.0 x 5.0
SiT8209AC -23-25E -156.123456T
[11]
“1” for ±20 PPM
“F” for ±10 PPM
“G” 2.5 x 2.0