SIT8002 반도체 회로 부품 판매점
Programmable Oscillator
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 Si Time |
SiT8002
www.Da1taSthoeet14U2.c5omMHz Programmable Oscillator
Features
• ±60 ps Peak-Peak Period Jitter
• Wide frequency range
• 1 MHz to 125 MHz
• Low frequency tolerance
• ±50 ppm or ±100 ppm
• Operating voltage
• 1.8V or 2.5 or 3.3 V
• 2.25V to 3.6V (contact factory)
• Operating temperature range:
• Industrial, -40°C to 85°C
• Extended Commercial, -20°C 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 (QFN SMD)
• Ultra-reliable start up and greater immunity from interfer-
ence
• High drive option: 30pF load (contact factory)
Block Diagram
VDD
OUT
Benefits
• No crystal or capacitors required
• Eliminates crystal qualification time
• 50% + board saving space
• More cost effective than Quartz oscillators, Quartz crystals
and Clock ICs.
• completely quartz-free
Applications
• Consumer Electronics
• Set Top Box, HDTV, DVR
• Office Automation: Scanners, Printers, Copiers
• Automotive Applications
• Industrial Applications: Interface Controllers, Graphics
Cards.
Pinout
ST/OE 1
4 VDD
MEMS
R e s o n a to r
Frequency
Synthesizer
GND 2
3 OUT
S T /O E
GND
Pin Description
Pin No. Name
1 ST/OE
2 GND
3 OUT
4 VDD
Pin Description
Standby/ Output Enable
Connect to Ground
1 to 125 MHz Programmed Clock output
Connect to 1.8V or 2.5V or 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
SiTime Corporation
Rev. 1.04
990 Almanor Avenue, Suite 200
Sunnyvale, CA 94085
(408) 328-4400
www.sitime.com
Revised Sept. 19, 2008
SiT8002
www.DataSheet4U.com
Description
The SiT8002 oscillator family is composed of the world’s
smallest, high-performance programmable oscillators. The
SiT8002 is suitable for use in clock generation for consumer,
portable, industrial, automotive, and computation applications.
This oscillator family is packaged in standard low-cost plastic
QFN-type IC packages with footprints that match common
quartz surface mount products.
MEMS resonators are 1000x smaller by volume than quartz
resonators and are built in high volume CMOS fabs instead of
small custom manufacturing facilities. Due to their small size,
massive lot sizes, and simpler manufacturing processes
Absolute Maximum Ratings
MEMS oscillators are inherently more reliable, have more
consistent performance and are always in stock.
The SiT8002, by eliminating the quartz crystals, has 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.
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 absolute maximum ratings.
Absolute Maximum Table
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 125C, Process, VDD (0 to 3.6V)
Min.
-65
-0.5
–
–
Max.
150
+3.65
6000
75
24
260
1
1,000+
Unit
°C
V
V
°C/W
°C/W
°C
NA
years
Operating Conditions
Parameter
Supply Voltages, VDD[1]
Extended Commercial OperatingTemperature
Industrial Operating Temperature
Maximum Load Capacitance[2]
VDD Ramp Time
Min. Typ. Max. Unit
2.97 3.3 3.63
V
2.25 2.5 2.75
V
1.7 1.8 1.9
V
-20 - 70 °C
-40 - 85 °C
- - 15 pF
0 - 200 ms
Environmental Compliance
Parameter
Mechanical Shock
Mechanical Vibration
Temperature Cycle
Solderability
Moisture Sensibility 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
Notes:
1. The 2.5V device can operate from 2.25V to 3.63V with higher output drive, however, the data sheet parameters cannot be guaranteed. Please contact factory for
this option.
2. The output driver strenght can be programmed to drive up to 30pF load. Please contact factory for this option.
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SIT8002 oscillator
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