SiTime Corporation 990 Almanor Avenue Sunnyvale, CA 94085 (408) 328-4400 www.sitime.com
Rev. 1.4 Revised May 30, 2010
SiT8033
Low Power 2-Frequency Select Oscillator
■The world’s lowest power programmable oscillator with 3.2 mA typical active current
■Selectable Output Frequency: F0 or F1 where F1 = F0/2, F0/3, F0/4, or F0/8
■1-110 MHz frequency range
■LVCMOS/LVTTL compatible output
■Frequency stability as low as ±20 PPM
■Four industry-standard packages: 2.5 x 2.0, 3.2 x 2.5, 5.0 x 3.2, 7.0 x 5.0 mm
■All-silicon device with outstanding reliability of 2 FIT (10x improvement over quartz-based devices),
enhancing system mean-time-to-failure (MTBF)
■Outstanding mechanical robustness for portable applications
■Ultra short lead time
■Ideal for applications with common and related frequencies: 48/24/12 MHz for USB, 50/25 MHz for
Ethernet, 24.576/12.288 MHz for audio, 54/27 MHz for video, 66/33 MHz for CPU
Electrical Characteristics
Parameter Symbol Min. Typ. Max. Unit Condition
Frequency Range f 1 – 110 MHz
Output Frequency F02 – 110 MHz The actual output frequency of the CLK pin is selected by the FS
(frequency select pin) to be either F0 or F1.
F11–55MHz
Frequency Stability F_stab -20 – +20 PPM Inclusive of: Initial stability, operating temperature, rated power,
supply voltage change, load change, shock and vibration
± 20 PPM available in extended commercial
temperature only
-25 – +25 PPM
-30 – +30 PPM
-50 – +50 PPM
Aging Ag -1.0 – 1.0 PPM 1st year at 25°C
Operating Temperature Range T_use -20 – +70 °C Extended Commercial
-40 – +85 °C Industrial
Supply Voltage Vdd 1.71 1.8 1.89 V
2.25 2.5 2.75 V
2.52 2.8 3.08 V
2.97 3.3 3.63 V
Current Consumption Idd – 3.7 4.1 mA No load condition, f = 20 MHz, Vdd = 2.5 V, 2.8 V or 3.3 V
– 3.2 3.5 mA No load condition, f = 20 MHz, Vdd = 1.8 V
Duty Cycle DC 45 50 55 % All Vdds. f <= 75 MHz
40 50 60 % All Vdds. f > 75 MHz
Rise/Fall Time Tr, Tf – 1 2 ns 20% - 80% Vdd=2.5 V, 2.8 V or 3.3 V, 15 pf load
- 1.3 2.5 ns 20% - 80% Vdd=1.8 V, 15 pf load
Output Voltage High VOH 90% – – Vdd IOH = -4 mA (Vdd = 3.3 V)
IOH = -3 mA (Vdd = 2.8 V and Vdd = 2.5 V)
IOH = -2 mA (Vdd = 1.8 V)
Output Voltage Low VOL – – 10% Vdd IOL = 4 mA (Vdd = 3.3 V)
IOL = 3 mA (Vdd = 2.8 V and Vdd = 2.5 V)
IOL = 2 mA (Vdd = 1.8 V)
Output Load Ld – – 15 pF At maximum frequency and supply voltage. Contact SiTime for
higher output load option.
Input Voltage High VIH 70% – – Vdd Pin 1, OE or ST
Input Voltage Low VIL – – 30% Vdd Pin 1, OE or ST
Startup Time T_osc – – 10 ms Measured from the time Vdd reaches its rated minimum value
Resume Time T_resume – 3.0 4 ms Measured from the time ST pin crosses 50% threshold
RMS Period Jitter T_jitt – – 4.0 ps f = 75 MHz, Vdd = 2.5 V, 2.8 V or 3.3 V
– – 6.5 ps f = 75 MHz, Vdd = 1.8 V
RMS Phase Jitter (random) T_phj – 0.6 – ps f = 75 MHz, Integration bandwidth = 900 kHz to 7.5 MHz,
VDD = 2.5 V, 2.8 V, or 3.3 V
– 0.8 – ps f = 75 MHz, Integration bandwidth = 900 kHz to 7.5 MHz,
VDD = 1.8 V
■
Features, Benefits and Applications
■ Specifications
SiT8033
Low Power 2-Frequency Select Oscillator
Rev. 1.4 Page 2 of 4 www.sitime.com
Pin Description Tables
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.
Environmental Compliance
Startup Timing Diagram
Note:
1. In 1.8 V mode, a resistor of <100 kΩ between OE pin and VDD is recommended.
Pin #1 Functionality Pin Map
FS Pin Connection
H or Open[1]: output frequency F01FS
L: output frequency F12GND
3CLK
4VDD
Parameter Min. Max. Unit
Storage Temperature -65 150 °C
VDD -0.5 4 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 3.65 V) 1,000+ – years
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
■
Specifications (Cont.)
90% Vdd: 2.5/2.8/3.3V parts
95% Vdd: 1.8V parts Vdd Pin 4 Voltage
CLK Output
T_start
T_start: Time to start from power-off
SiT8033
Low Power 2-Frequency Select Oscillator
Rev. 1.4 Page 3 of 4 www.sitime.com
Notes:
2. Y denotes manufacturing origin and XXXX denotes manufacturing lot number. The value of “Y” will depend on the assembly location of the device.
3. A capacitor of value 0.1 μF between Vdd and GND is recommended.
4. The 7050 package with part number designation "-8" has NO center pad.
Package Size – Dimensions (Unit: mm)[2] Recommended Land Pattern (Unit: mm)[3]
2.5 x 2.0 x 0.75 mm
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
■ Dimensions and Land Patterns
2.5 ± 0.10
2.0 ± 0.10
1.1
1.00
0.75
0.5
0.75 ± 0.05
YXXXX
#1
#2
#4#3
#2
#1
#3#4
1.9
1.1
1.0
1.5
3.2 ± 0.15
2.5 ± 0.15
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
2.54
1.5
1.6
2.2
5.0 ± 0.15
1.4
1.1
5.08
7.0 ± 0.15
2.6
1.7
2.1
0.90 ± 0.10
YXXXX
#1
#2
#4#3
#2
#1
#3#4
No Connect [4]
5.08
3.81
2.2
2.0
Rev. 1.4 Page 4 of 4 Revised May 30, 2010
© SiTime Corporation 2010. 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
sitme 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.
SiT8033
Low Power 2-Frequency Select Oscillator
The Part No. Guide is for reference only. For real-time customization and exact part number, use the SiTime Part Number Generator.
Notes:
5. Contact SiTime for different drive strength options for driving higher loads or reducing EMI.
6. Without Center Pad.
7. Frequency is for F0 (see table below for mimum output frequencies).
■ Part No. Guide - How to Order
Frequency
2.00000 to 110.00000 MHz
Part Family
“SiT8033”
Revision Letter
“A” is the revision
Temperature Range
“I” Industrial, -40 to 85ºC
Supply Voltage
“18” for 1.8 V ±5%
“25” for 2.5 V ±10%
“28” for 2.8 V ±10%
“33” for 3.3 V ±10%
Packaging
Blank for Bulk
Output Driver Strength[5]
“–” Default
Output Frequency Options
“A”= F0and F0/2
“B” = F0and F0/3
“C”= F0and F0/4
“D”= F0and F0/8
“C” Commercial, -20 to 70ºC
Frequency Stability
“2” for ±25 PPM
“3” for ±50 PPM
“4” for ±100 PPM
“8” for ±30 PPM
Package Size
“1” 2.5 x 2.0 mm
“2” 3.2 x 2.5 mm
“3” 5.0 x 3.2 mm
“T”: Tape & Reel, 3K reel
“Y”: Tape & Reel, 1K reel
“4” 7.0 x 5.0 mm
“8” 7.0 x 5.0 mm[6]
SiT8033AC - 14-18A -48.00000T
[7]
Frequency Stability vs. Temperature Range Options
Frequency
Stability (PPM)
Temperature
Range
Supply Voltage
1.8 V 2.5 V 2.8 V 3.3 V
±20
C (-20 to +70°C) 
I (-40 to +85°C) ––––
±25 C (-20 to +70°C)
I (-40 to +85°C) 
±30 C (-20 to +70°C)
I (-40 to +85°C) 
±50 C (-20 to +70°C)
I (-40 to +85°C) 
Frequency Select Options vs. Mimimum Output Frequency
Output
Frequency Option
Minimum
Frequency (F0)
A = F0 and F0/2 2 MHz
B = F0 and F0/3 3 MHz
C = F0 and F0/4 4 MHz
D = F0 and F0/8 8 MHz
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
SiTime:
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