SiT8102
1 to 200 MHz High Performance Oscillator
SiTime Corporation 990 Almanor Avenue, Suite 200 Sunnyvale, CA 94085 (408) 328-4400 www.sitime.com
Rev. 1.08 Revised December 08, 2008
Features
• High frequency stability
• ±10 PPM, ±15 PPM, ±20 PPM
• ±25 PPM, ±50 PPM, ±100 PPM
• Extremely low RMS phase jitter (random)
• 0.5 ps (typical)
• Wide frequency range
• 1 to 200 MHz
• Operating voltage
• 1.8, 2.5, 2.8V or 3.3 V
• 2.25 V to 3.63 V (contact SiTime)
• Operating temperature range
• Industrial, -40 to 85 °C
• Extended Commercial, -20 to 70 °C
• Commercial, 0 to 70 °C
• Small footprint
• 2.5 x 2.0 x 0.85 mm
• 3.2 x 2.5 x 0.85 mm
• 5.0 x 3.2 x 0.85 mm
• 7.0 x 5.0 x 0.85 mm
• All packages are Pb-free and ROHs compliant
• High drive option: 30pF load (contact factory)
Benefits
• No crystal or capacitors required
• Eliminates crystal qualification time
• Ultra-reliable start up and greater immunity from interfer-
ence
• 50% + board saving space
• More cost effective than quartz oscillators, quartz crystals
and clock ICs.
• Completely quartz-free
Applications
• Communications and Networking Applications
• Consumer Electronics Applications
• Automotive Applications
• Industrial Applications
• Gigabit Ethernet
• 10 Gigabit Ethernet
• Fiber Channel
• Ethernet
• SATA/SAS
• USB 2.0
• PCI-Express
MEMS
Resonator
GND
VDD OUT
ST/OE
High
Performance
Synthesizer
Block Diagram Pinout
14
32
ST/OE VDD
OUTGND
Pin Description
Pin No. Name Pin Description
1ST/OE Standby/ Output Enable
2 GND Connect to Ground
3 OUT 1 to 200 MHz Programmed Clock
output
4 VDD Connect to 1.8V / 2.5V / 2.8V / 3.3V
Pin1
Pin #1 Functionality
OE
H or Open; specified frequency output
L: output is high impedance
ST
H or Open; specified frequency output
L: output is low level (weak pull down) oscillation stops
SiT8102
Page 2 of 7
Description
The SiT8102 is the next generation of the SiT8002 program-
mable oscillator with lower phase noise, lower jitter, and a
higher frequency range. SiTime oscillators are the smallest,
high-performance programmable oscillator available and are
suitable for use in high speed serial communications,
consumer, portable, industrial, automotive and computation.
This oscillator is packaged in standard low-cost plastic and
chip-scale IC packages.
System reliability is also increased with the SiT8102 by elimi-
nating the quartz crystal and improved immunity to the
environmental effects of vibration, shock, strain, and humidity.
To order samples, go to www.sitime.com and click on Request
Sample” link.
Absolute Maximum Ratings
Attempted operation outside the absolute maximum ratings of the part may cause permanent damage to the part. Actual
performance of the IC is only guaranteed within the operational specifications, not at absolute maximum ratings.
Notes:
1. The 2.5V device can operate from 2.25V to 3.63V with higher output drive, however, the data sheet specifications cannot be guaranteed. Please contact factory
for this option.
2. The output driver strength can be programmed to drive up to 30pF load. Please contact factory for this option.
Absolute Maximum Table
Parameter Min. Max. Unit
Storage Temperature -65 150 °C
VDD -0.5 +3.65 V
Electrostatic Discharge – 6000 V
Theta JA ( with copper plane on VDD and GND) – 75 °C/W
Theta JC (with PCB traces of 0.010 inch to all pins) – 24 °C/W
Soldering Temperature (follow standard Pb free soldering guidelines) – 260 °C
Number of Program Writes – 1 NA
Program Retention over -40 to 125 °C, Process, VDD (0 to 3.65V) – 1,000+ years
Operating Conditions
Parameter Min. Typ. Max. Unit
Supply Voltages, VDD[1] 2.97 3.3 3.63 V
2.25 2.5 2.75 V
2.52 2.8 3.08 V
1.7 1.8 1.9 V
Extended Commercial OperatingTemperature -20 – 70 °C
Industrial Operating Temperature -40 – 85 °C
Maximum Load Capacitance[2] – – 15 pF
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 Sensibility Level MSL1 @ 260°C
SiT8102
Page 3 of 7
DC Electrical Specifications
@VDD = 3.3V ±10%, -40 to 85°C
Parameter Condition Min. Typ. Max. Unit
Output Voltage High IOH = -9 mA 90 – – %Vdd
Output Voltage Low IOL = 9 mA – – 10 %Vdd
Input Voltage High Pin 1 70 – – %Vdd
Input Voltage Low Pin 1 – – 30 %Vdd
Operating Current Output frequency = 30 MHz, 15 pF load – – 26 mA
Output frequency = 125 MHz, 15 pF load – – 34 mA
Standby Current Output is weakly pulled down, ST = GND – 30 50 µA
Power Up Time Time from minimum power supply voltage – – 10 ms
@VDD = 2.5V ±10% or VDD = 2.8V ±10%, -40 to 85°C
Parameter Condition Min. Typ. Max. Unit
Output Voltage High IOH = -7 mA 90 – – %Vdd
Output Voltage Low IOL = 7mA - – 10 %Vdd
Input Voltage High Pin 1 70 – – %Vdd
Input Voltage Low Pin 1 – – 30 %Vdd
Operating Current Output frequency = 30 MHz, 15 pF load – – 26 mA
Output frequency = 125 MHz, 15 pF load – – 31 mA
Standby Current Output is weakly pulled down, ST = GND – 30 50 µA
Power Up Time Time from minimum power supply voltage – – 10 ms
@VDD = 1.8V ±5%, -40 to 85°C
Parameter Condition Min. Typ. Max. Unit
Output Voltage High IOH = -5 mA 90 – – %Vdd
Output Voltage Low IOL = 5 mA - – 10 %Vdd
Input Voltage High Pin 1 70 – – %Vdd
Input Voltage Low Pin 1 – – 30 %Vdd
Operating Current Output frequency = 30 MHz, 15 pF load – – 26 mA
Output frequency = 125 MHz, 15 pF load – – 31 mA
Standby Current Output is weakly pulled down, ST = GND – 30 50 µA
Power Up Time Time from minimum power supply voltage – – 10 ms
SiT8102
Page 4 of 7
AC Electrical Specifications
@VDD = 3.3V ±10%, -40 to 85°C
Parameter Condition Min. Typ. Max. Unit
Clock Output Frequency 1 – 200 MHz
Frequency Stability Inclusive of initial tolerance,
operating temp., rated power
supply voltage change, load
change
0 to 70°C -10 – +10 PPM
-20 to 70°C
-40 to 85°C
-15 – +15 PPM
-20 – +20 PPM
-25 +25 PPM
-50 +50 PPM
-100 +100 PPM
Aging First year @ 25 °C – – 1 PPM
Clock Output Duty Cycle Output frequency= 1 to 125 MHz 45 – 55 %
Output frequency= 125 to 200 MHz 40 – 60 %
Clock Output Rise Time 15 pF Load, 20% to 80% VDD – 1.0 1.5 ns
Clock Output Fall Time 15 pF Load, 80% to 20% VDD – 1.0 1.5 ns
RMS Period Jitter Output frequency = 75 MHz – 2.6 4 ps
Output frequency = 125 MHz – 2.4 3.6 ps
RMS Phase Jitter (Random) Output frequency = 75 MHz (900 kHz to 7.5 MHz) –0.81– ps
Output frequency = 106.25 MHz (637kHz to 10 MHz) –1.64– ps
Output frequency = 125 MHz (1.875 to 20 MHz) –0.38– ps
@VDD = 2.5V ±10% or VDD = 2.8V ±10%, -40 to 85°C
Parameter Condition Min. Typ. Max. Unit
Clock Output Frequency 1 – 200 MHz
Frequency Stability Inclusive of initial tolerance,
operating temp., rated power
supply voltage change, load
change
0 to 70°C -10 – +10 PPM
-20 to 70°C
-40 to 85°C
-15 – +15 PPM
-20 – +20 PPM
-25 +25 PPM
-50 +50 PPM
-100 +100 PPM
Aging First year @ 25 °C – – 1 PPM
Clock Output Duty Cycle Output frequency= 1MHz to 125MHz 45 – 55 %
Output frequency= 125MHz to 200MHz 40 – 60 %
Clock Output Rise Time 15 pF Load, 20% to 80% VDD – 1.0 1.5 ns
Clock Output Fall Time 15 pF Load, 80% to 20% VDD – 1.0 1.5 ns
RMS Period Jitter Output frequency = 75 MHz – 3 6 ps
Output frequency = 125 MHz – 2.8 5 ps
RMS Phase Jitter (Random) Output frequency = 75 MHz (900 kHz to 7.5 MHz) –0.87– ps
Output frequency = 106.25 MHz (637kHz to 10 MHz) –1.7– ps
Output frequency = 125 MHz (1.875 to 20 MHz) –0.41– ps
SiT8102
Page 5 of 7
Ordering Information
@VDD = 1.8V ±5%, -40 to 85°C
Parameter Condition Min. Typ. Max. Unit
Clock Output Frequency 1 – 200 MHz
Frequency Stability Inclusive of initial tolerance,
operating temp., rated power
supply voltage change, load
change
0 to 70°C -15 – +15 PPM
-20 to 70°C
-40 to 85°C
-20 – +20 PPM
-25 +25 PPM
-50 +50 PPM
-100 +100 PPM
Aging First year @ 25 °C – – 1 PPM
Clock Output Duty Cycle Output frequency= 1 MHz to 75 MHz 45 – 55 %
Output frequency= 75 MHz to 200 MHz 40 – 60 %
Clock Output Rise Time 15 pF Load, 20% to 80% VDD – 1.0 1.5 ns
Clock Output Fall Time 15 pF Load, 80% to 20% VDD – 1.0 1.5 ns
RMS Period Jitter Output frequency = 75 MHz – 7.3 14 ps
Output frequency = 125 MHz – 7.1 14 ps
RMS Phase Jitter (Random) Output frequency = 75 MHz (900 kHz to 7.5 MHz) –0.85– ps
Output frequency = 106.25 MHz (637kHz to 10 MHz) –1.72– ps
Output frequency = 125 MHz (1.875 to 20 MHz) –1.06– ps
SiT8102AC - 13 - 25E - 123.12345T
Frequency
1.00000 to 200.00000 MHz
Part Family
“SiT8102”
Revision Letter
“A” is the silicon revision
Temperature Range
“N” Commercial 0 to 70°C
“C” Extended Commercial -20 to 70°C
“I” Industrial -40 to 85°C
Feature Pin
“E” for Output Enable
“S” for Standby
Voltage Supply
“18” for 1.8 V +/- 5%
“25” for 2.5 V +/- 10%
“28” for 2.8 V +/- 10%
“33” for 3.3 V +/- 10%
Package Size
“1” 2.5 x 2.0 mm
“2” 3.2 x 2.5 mm
“3” 5.0 x 3.2 mm
“4” 7.0 x 5.0 mm
Frequency Stability
“F” for +/- 10 ppm
“H” for +/- 15 ppm
“1” for +/- 20 ppm
“2” for +/- 25 ppm
“3” for +/- 50 ppm
“4” for +/- 100 ppm
Packaging:
“T” for Tape & Reel
Blank for Bulk
FrequencyStability
Temperature Range
N = 0 to 70C C = -20 to 70C I = -40 to 85C
± 10 PPM VDD = 2.5 or 2.8 or 3.3 V NA NA
± 15 PPM All VDDs VDD = 2.5 or 2.8 or 3.3 V VDD = 2.5 or 2.8 or 3.3 V
± 20 PPM
All VDDs± 25PPM
± 50 PPM
SiT8102
Page 7 of 7
© SiTime Corporation 2008. 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.
Notes:
3. xxxx top marking denotes manufacturing lot number.
4. A capacitor of value 0.1μF between VDD and GND is recommended.
Package Information (continued)[3]
Dimension (mm) Land Pattern (recommended) (mm)[4]
7.0 x 5.0 x 0.85mm
0.85±0.15 Do not Connect the center pad
or
Connect it to Device’s GND
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
SiTime:
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25.00000 SiT8102AC-23-33E-12.00000 SiT8102AC-43-33E-24.57600 SiT8102AC-13-25E-20.00000 SiT8102AC-23-
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43-25E-40.00000 SiT8102AI-13-25E-100.00000 SiT8102AC-23-25E-125.00000 SiT8102AC-43-25E-66.66667
SiT8102AI-13-33E-8.00000 SiT8102AC-43-33E-100.00000 SiT8102AC-43-25E-50.00000 SiT8102AI-13-25E-14.31818
SiT8102AC-43-33E-106.25000 SiT8102AC-13-25E-60.00000 SiT8102AC-43-33E-80.00000 SiT8102AC-13-33E-
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43-33E-50.00000 SiT8102AI-43-25E-16.00000 SiT8102AC-13-25E-50.00000 SiT8102AC-13-25E-1.84320
SiT8102AC-23-25E-20.00000 SiT8102AC-23-25E-16.00000 SiT8102AC-13-33E-50.00000 SiT8102AI-43-25E-
66.66667 SiT8102AC-23-33E-16.00000 SiT8102AI-13-33E-24.57600 SiT8102AI-43-25E-32.76800 SiT8102AI-23-
25E-13.56000 SiT8102AI-43-25E-4.00000 SiT8102AI-43-33E-8.00000 SiT8102AC-43-25E-60.00000 SiT8102AC-23-
33E-20.00000 SiT8102AC-43-33E-13.56000 SiT8102AI-23-25E-27.00000 SiT8102AC-13-33E-75.00000 SiT8102AI-
43-33E-25.00000 SiT8102AI-23-25E-40.00000 SiT8102AI-13-18E-24.57600 SiT8102AI-23-33E-13.56000
SiT8102AC-43-33E-60.00000 SiT8102AI-43-33E-66.66667 SiT8102AC-13-33E-5.00000 SiT8102AC-23-25E-33.33300
SiT8102AC-43-25E-13.56000 SiT8102AI-13-18E-106.25000 SiT8102AC-13-25E-75.00000 SiT8102AC-13-25E-
24.57600 SiT8102AI-13-33E-4.00000 SiT8102AI-43-33E-12.00000 SiT8102AC-13-33E-20.00000 SiT8102AC-43-25E-
24.57600 SiT8102AC-23-33E-4.00000 SiT8102AC-43-33E-10.00000 SiT8102AC-13-33E-125.00000 SiT8102AI-23-
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43-33E-32.76800 SiT8102AI-13-25E-24.57600 SiT8102AI-23-33E-27.00000 SiT8102AC-43-25E-4.00000 SiT8102AC-
13-33E-80.00000 SiT8102AC-23-33E-33.33300 SiT8102AC-13-25E-4.00000 SiT8102AC-13-18E-24.57600
