SiT9003
Low Power Spread Spectrum Oscillator
■
Features, Benefits and Applications
■
The world’s lowest power spread spectrum oscillator with 3.2 mA typical active current
■
1-110 MHz frequency range
■
LVCMOS/LVTTL compatible output
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Standby current as low as 0.5 µA
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Fast resume time of 3.0 ms
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<30 ps cycle-cycle jitter
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Spread options (contact SiTime for other spread options)
• Center spread: ±0.50%, ±0.25%
• Down spread: -1%, -0.5%
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Up to 12 dB EMI reduction
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Standby, output enable, or spread off mode
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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
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Outstanding mechanical robustness for portable applications
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All-silicon device with outstanding reliability of 2 FIT (10x improvement over
quartz-based devices), enhancing system mean-time-to-failure (MTBF)
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Ultra short lead time
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Ideal for printers, flat panel drivers, PCI, USB, and microprocessors
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Specifications
Electrical Characteristics
Parameter
Output Frequency Range
Frequency Tolerance
Symbol
f
F_tol
Min.
1
-50
-100
Aging
Operating Temperature Range
Supply Voltage
Ag
T_use
Vdd
-1
-20
-40
1.71
2.25
2.52
2.97
–
–
–
–
–
45
40
–
-
90%
Typ.
–
–
–
–
–
–
1.8
2.5
2.8
3.3
3.7
3.2
2.4
1.2
0.4
–
–
1
1.3
–
Max.
110
+50
+100
1
+70
+85
1.89
2.75
3.08
3.63
4.1
3.5
4.3
2.2
0.8
55
60
2
2.5
–
Unit
MHz
PPM
PPM
PPM
°C
°C
V
V
V
V
mA
mA
μA
μA
μA
%
%
ns
ns
Vdd
Condition
Inclusive of: Initial stability, operating temperature, rated power,
supply voltage change, load change, shock and vibration
Spread Off
1st year at 25°C
Extended Commercial
Industrial
Current Consumption
Standby Current
Idd
I_std
Duty Cycle
Rise/Fall Time
Output Voltage High
DC
Tr, Tf
VOH
No load condition, f = 20 MHz, Vdd = 2.5 V, 2.8 V or 3.3 V
No load condition, f = 20 MHz, Vdd = 1.8 V
ST = GND, Vdd = 3.3 V, Output is Weakly Pulled Down
ST = GND, Vdd = 2.5 or 2.8 V, Output is Weakly Pulled Down
ST = GND, Vdd = 1.8 V, Output is Weakly Pulled Down
All Vdds. f <= 70 MHz
All Vdds. f >70 MHz
20% - 80% Vdd=2.5 V, 2.8 V or 3.3 V, 15 pf load
20% - 80% Vdd=1.8 V, 15 pf load
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
Input Voltage High
Input Voltage Low
Startup Time
Resume Time
Cycle-cycle Jitter
Ld
VIH
VIL
T_osc
T_resume
T_cyc
–
70%
–
–
–
–
–
–
–
–
–
3.0
–
–
15
–
30%
10
3.8
26
26
pF
Vdd
Vdd
ms
ms
ps
ps
At maximum frequency and supply voltage. Contact SiTime for
higher output load option
Pin 1, OE or ST or SD
Pin 1, OE or ST or SD
Measured from the time Vdd reaches its rated minimum value
Measured from the time ST pin crosses 50% threshold
f = 50 MHz, Spread = ON
f = 50 MHz, Spread = OFF
SiTime Corporation
Rev. 1.6
990 Almanor Avenue
Sunnyvale, CA 94085
(408) 328-4400
www.sitime.com
Revised June 3, 2010
SiT9003
Low Power Spread Spectrum Oscillator
■
Specifications (Cont.)
Spread Spectrum Modes
Center Spread
Code
Percentage
B
±0.25%
D
±0.5%
[1]
Down Spread
O
-0.5%
Q
-1.0%
[1]
In both center spread and down spread modes, triangle modulation is employed with a frequency of ~32 kHz.
Pin Description Tables
Pin #1 Functionality
OE
H or Open
[2]
: specified frequency output
L: output is high impedance
ST
H or Open: specified frequency output
L: output is low level (weak pull down)
SD
H or Open: Spread Spectrum = ON
L: Spread Spectrum = OFF
Pin Map
Pin
1
2
3
4
Connection
OE/ST/SD
GND
CLK
VDD
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.
Parameter
Storage Temperature
VDD
Electrostatic Discharge
Theta JA (with copper plane on VDD and GND)
Theta JC (with PCB traces of 0.010 inch to all pins)
Soldering Temperature (follow standard Pb free soldering guidelines)
Number of Program Writes
Program Retention over -40 to 125°C, Process, VDD (0 to 3.65 V)
Min.
-65
-0.5
–
–
–
–
–
1,000+
Max.
150
4
2000
75
24
260
1
–
Unit
°C
V
V
°C/W
°C/W
°C
NA
years
Environmental Compliance
Parameter
Mechanical Shock
Mechanical Vibration
Temperature Cycle
Solderability
Moisture Sensitivity Level
MIL-STD-883F, Method 2002
MIL-STD-883F, Method 2007
JESD22, Method A104
MIL-STD-883F, Method 2003
MSL1 @ 260°C
Condition/Test Method
Startup and Resume Timing Diagram
90% Vdd: 2.5/2.8/3.3V parts
95% Vdd: 1.8V parts
Vdd
Vdd
Pin 4 Voltage
ST Voltage
50% Vdd
T_resume
T_start
CLK Output
CLK Output
T_start: Time to start from power-off
(ST/OE Mode)
T_resume: Time to resume from ST
(ST Mode Only)
Notes:
1. ±0.5% and -1.0% are available ONLY for <75 MHz in extended commercial temperature range.
2. In 1.8 V mode, a resistor of <100 kΩ between OE pin and VDD is recommended.
Rev. 1.6
Page 2 of 4
www.sitime.com
SiT9003
Low Power Spread Spectrum Oscillator
■
Dimensions and Land Patterns
Package Size – Dimensions (Unit: mm)
[3]
2.5 x 2.0 x 0.75 mm
2.5 ± 0.10
#4
#3
#3
Recommended Land Pattern (Unit: mm)
[4]
1.00
1.9
#4
2.0 ± 0.10
YXXXX
1.1
0.75 ± 0.05
0.75
1.1
3.2 x 2.5 x 0.75 mm
3.2 ± 0.15
#4
#3
#3
2.1
#4
2.2
0.9
YXXXX
2.5 ± 0.15
0.75 ± 0.05
0.9
1.4
5.0 x 3.2 x 0.75 mm
5.0 ± 0.15
#4
#3
#3
2.39
#4
2.54
YXXXX
3.2 ± 0.15
0.8
0.75 ± 0.05
1.15
1.5
7.0 x 5.0 x 0.90 mm
7.0 ± 0.15
#4
#3
#3
5.08
1.7
5.08
#4
5.0 ± 0.15
2.6
1.1
3.81
YXXXX
2.1
No Connect
[5]
#1
#2
#2
#1
0.90 ± 0.10
1.4
2.2
Notes:
3. Y denotes manufacturing origin and XXXX denotes manufacturing lot number. The value of “Y” will depend on the assembly location of the device.
4. A capacitor of value 0.1
μF
between Vdd and GND is recommended.
5. The 7050 package with part number designation "-8" has NO center pad.
Rev. 1.6
Page 3 of 4
2.0
1.6
#1
#2
#2
#1
1.1
2.2
1.2
#1
#2
#2
#1
0.7
1.9
1.0
#1
#2
#2
#1
0.5
1.5
www.sitime.com
SiT9003
Low Power Spread Spectrum Oscillator
■
Part No. Guide
-
How to Order
The Part No. Guide is for reference only. For real-time customization and exact part number, use the SiTime
Part Number Generator.
SiT9003AC -14-18EB - 105.12345T
Packaging
Part Family
“SiT9003”
Revision Letter
“A” is the revision
Temperature Range
“C” Commercial, -20 to 70ºC
“I” Industrial, -40 to 85ºC
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
“8” 7.0 x 5.0 mm
[6]
Frequency Stability
“3” for ±50 PPM
“4” for ±100 PPM
“T”: Tape & Reel, 3K reel
“Y”: Tape & Reel, 1K reel
Blank for Bulk
Frequency
1.00000 to 110.00000 MHz
Spread Spectrum Percentage
“B” for ±0.25%
“D” for ±0.50%
“O” for -0.50%
“Q” for -1.0%
Feature Pin
“E” for Output Enable
“S” for Standby
“D” for Spread Disable
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%
Notes:
6. Without Center Pad.
Available Spread Options vs. Temperature and Frequency
Temperature Range
Spread Percentage
B = ±0.25%
D = ±0.50%
O = -0.50%
Q = -1.0%
1-75 MHz
1-75 MHz
1-110 MHz
–
C = -20 to 70°C
1-110 MHz
–
I = -40 to 85°C
© 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.
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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.
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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
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strictly prohibited.
Rev. 1.6
Page 4 of 4
Revised June 3, 2010
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