The SiT9003 and SiT9002 series of MEMs oscillators from SiTime are the industry's lowest power programmable spread spectrum oscillator with a LVCMOS/LVTTL compatible output. They are single chip solutions that replace spread spectrum ICs and external crystals. The oscillators include a programmable drive strength feature to provide a simple, flexible tool to optimize the clock rise and fall time for specific applications. Benefits from the programmable drive strength feature include reduced system radiated electromagnetic interference (EMI) by up to 12 dB from slowing down the clock rise and fall time and improved clock receivers (RX) jitter downstream. These enable the ability of the SiT9003 and SiT9002 to drive large capacitive loads while maintaining full swing.
Graph - Spectrum plots of a non-spreading clock and a spread spectrum clock
| Features and Benefits |
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- Flexible spread options supporting up to 12 dB EMI reduction
- Center spread percentage: ±0.25% and ±0.5%
- Down spread percentage: -0.5% and -1.0%
- World's best cycle-to-cycle jitter of < 30="">
- Lowest power consumption of any programmable oscillator
- 3.5 mA typical power consumption
- 1.2 μA typical standby current
- 3 ms typical resume time
- Extensive programmability
- Any frequency between 1 MHz to 110 MHz with 5 decimal place accuracy
- Supply voltage of 1.8 V, 2.5 V, 2.8 V, and 3.3 V
- Frequency stability from ±50 PPM to ±100 PPM
- Adjustable rise and fall time
- Four industry standard package
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- Up to 12 dB EMI reduction
- Minimize impact to system timing budget
- Extends battery life
- Enables systems to go in and out of standby mode quickly, conserving battery power
- Provides designers the opportunity to use the same base product for many designs
- Customize specification for optimal system performance
- Configurable slew rate, enabling additional EMI control
- Reuse of the same base product for many designs
- 100% drop-in replacement of crystal oscillators
- Enables EMI reduction without board re-design, metal housing or other expensive EMI reduction methods
- Reduce inventory overhead
- Mitigate shortage risks
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| Applications |
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- Low power MCU
- PCI or PCI Express
- USB3.0
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- Non-baseband clocking in mobile phones (camera modules, multimedia chipsets, and more)
- Portable gaming devices
- Other handheld applications (eePC and portable test equipment)
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