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| Overview |
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| SiTime Corporation’s all silicon MEMS-based timing solutions include programmable oscillators, clock generators and embedded resonators. SiTime’s oscillators and clock generators incorporate an industry-leading, highly reliable MEMS resonator and advanced, programmable analog circuits to provide benefits like cost-effective performance, shorter lead times, reduced number of suppliers and parts, smaller sizes, higher integration, and better robustness and reliability. |
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| Differential Output Programmable Oscillators and Clock Generators |
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SiTime offers a range of differential output programmable oscillators and clock generators that operate at frequencies from 1 to 800 MHz and can support LVPECL, LVDS, CML and HCSL signaling. These products incorporate SiTime’s high-performance programmable PLL technology to offer very low jitter (<1ps), making them ideal for high performance communications, networking, computing and consumer applications such as 10 Gigabit Ethernet, Gigabit Ethernet, PCI Express, Fibre Channel, USB3.0, DDR memories, Quick Path Interconnect, etc.
The SiT9102 and SiT9002 are available in industry standard footprints of 7.0 x 5.0 mm and 5.0 x 3.2 mm, with heights lower than 0.9 mm, enabling customers to easily replace existing products in their systems. For space-constrained applications, a 3.2 x 2.5 mm package can also be made available on customer request.
Device |
Product Description |
Key Features |
Download |
SiT9102 |
Differential Output
Programmable
Oscillator |
Up to 800 MHz
LVPECL, LVDS, CML or HCSL signaling
Operating voltage of 1.8 V, 2.5 V, and 3.3 V
Available in ±10 PPM frequency tolerance |
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SiT9103 |
3-PLL, 3-Output Differential Programmable Clock Generator |
Up to 800 MHz
LVPECL, LVDS, CML or HCSL signaling
Operating voltage of 1.8 V, 2.5 V, and 3.3 V
Any Voltage, Any Output
Center or Down Spread |
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SiT9002 |
Differential Output
Programmable Spread
Spectrum Oscillator |
Reduces EMI up to 12 dB
Center or Down Spread
Up to 800 MHz
LVPECL, LVDS, CML or HCSL signaling
Operating voltage of 1.8 V, 2.5 V, and 3.3 V |
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All SiTime programmable timing products utilize proven MEMS technology that offers 10 times better robustness and reliability than existing, quartz-based solutions, supporting longer-life electronics. In addition, all SiTime products can be programmed and shipped in 24 hours for sample quantities and 2 weeks for production quantities. The unmatched flexibility offered by SiTime products ensures tremendous supply chain cost savings for OEMs and ODMs as it allows them to eliminate multiple suppliers, consolidate part numbers and inventory, and also shorten production lead time. |
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| High Performance Programmable Oscillators |
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SiTime's high performance programmable oscillators use an industry-leading, highly reliable MEMS resonator and advanced analog circuits to provide a wide range of programmable frequencies with very low jitter. The programmable features of SiTime’s products such as frequency (as high as 800 MHz), operating voltage (1.8 V, 2.5 V, 2.8 V and 3.3 V), frequency tolerance (±10 PPM, ±25 PPM, ±50 PPM and ±100 PPM) and output signaling types (LVPECL, LVDS, CML or HCSL) enable unparalleled flexibility and fast customization with very short lead times (samples in 24 hours and production quantities in two weeks). These all-silicon devices are available in industry-standard footprints and packages for direct drop-in replacements of quartz oscillators (XO and SPXO).
Device |
Product Description |
Key Features |
Download |
SiT9102 |
Differential Output Programmable Oscillator |
LVPECL, LVDS, CML or HCSL signaling
Available in ±10 PPM frequency tolerance
Up to 800 MHz |
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SiT8102 |
High Performance Programmable Oscillator |
1-200 MHz
Available in ±10 PPM frequency tolerance
Industry’s lowest jitter |
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SiT8002 |
Programmable Oscillator |
1-125 MHz
Available in +125°C auto temperature range (SiT8002AA)
Significant value over fixed and programmable quartz oscillators |
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| Low Power Programmable Oscillators |
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SiTime’s low power programmable MEMS oscillator family uses industry-leading, proven, and highly reliable MEMS and analog technologies to deliver the lowest power consumption and fastest start-up time. These devices are highly programmable – frequency, voltage and tolerance can be configured easily – enabling shipment of customized samples in 24 hours and production quantities in two weeks. Additionally, these all-silicon oscillators are offered in industry standard footprints and packages for direct drop-in replacements of quartz oscillators (XO and SPXO).
Device |
Product
Description |
Key Features |
Download |
SiT8003 |
Low Power Programmable Oscillator |
1-80 MHz (any) and 80-110 MHz (selected)
<3.5 mA typical IDD
3 ms start-up time
±25 PPM Frequency Tolerance |
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SiT8003XT |
0.25 mm Thin Programmable Oscillator |
1-80 MHz (any) and 80-110 MHz (selected)
<3.5 mA typical IDD
3.5 mm x 3.0 mm x 0.25 mm package
±100 PPM Frequency Tolerance |
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SiT8033 |
2-Frequency Programmable Oscillator |
1-80 MHz (any) and 80-110 MHz (selected)
F0 or F0/2, 3, 4 or 8
<3.5 mA typical IDD
Frequency Select pin Vin |
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| Programmable Spread Spectrum Oscillators |
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SiTime's programmable spread spectrum oscillators incorporate an industry-leading, highly reliable MEMS resonator and advanced analog circuits to provide EMI reduction of up to 12 dB with the lowest cycle-to-cycle jitter in the industry. Every programmable spread spectrum device, whether single-ended or differential, is available in industry standard footprints and packages. This feature allows easy replacement of conventional oscillators in systems without costly layout or design changes, ensuring that product delivery schedule is met and time to revenue is short.
Programmable features of SiTime’s spread-spectrum products include amount of down spreading or center spreading, frequency (as high as 800 MHz), operating voltage (1.8 V, 2.5 V, 2.8 V and 3.3 V), frequency tolerance when spread is off (±25 PPM, ±50 PPM and ±100 PPM) and output signaling types (LVPECL, LVDS, CML or HCSL). These programmable features enable unparalleled flexibility and fast customization with very short lead times (samples in 24 hours and production quantities in two weeks).
SiTime offers the following programmable spread spectrum oscillator products.
Device |
Product Description |
Key Features |
Download |
SiT9001 |
Programmable Spread Spectrum Oscillator |
1-200 MHz
Reduces EMI up to 12 dB
Replaces any standard oscillator
Center or Down Spread
Consumer and computing applications: eg. Desktop PCs, printers, PCIe add-in cards |
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SiT9002 |
Differential Output Programmable Spread Spectrum Oscillator |
1-220 MHz (Any), 220-800 MHz (Selected)
Reduces EMI up to 12 dB
LVPECL, LVDS, CML or HCSL signaling
Center or Down Spread
Consumer and computing applications: eg. PCs, printers, servers, RAID, storage, memory clocking, PCIe add-in cards |
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SiT9003 |
Low Power Programmable Spread Spectrum Oscillator |
1-80 MHz (Any), 80-110 MHz (Selected)
Reduces EMI up to 12 dB
Typical IDD < 3.5 mA
Center or Down Spread
Portable and low power computing applications: eg. Notebooks, printers, storage |
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| Programmable Clock Generators |
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SiTime's multi-PLL, multi-output programmable clock generators are the first in the industry to include embedded resonators, thus eliminating the need for external crystals and other clock sources. SiTime's programmable clock generators offer less than 1 ps of phase jitter, output frequencies of up to 800 MHz, and a variety of differential and single-ended outputs to address various standards.
In addition, SiTime’s programmable clock generators are offered in extremely tiny packages, making them ideal for space-constrained applications. These multi-PLL devices integrate multiple oscillators and clock generators on a board, saving board space, reducing BOM cost, and offer supply chain benefits by eliminating multiple part numbers or suppliers from an Approved Vendor List (AVL).
Unique features such as independent voltage rails for the outputs and configurable output signaling type minimize the need for external components such as level translators and enable the board designer to reduce system complexity, cost, and power consumption. All of SiTime's clock generators are easily customizable to meet customer requirements with very short lead times.
Device |
Product Description |
Key Programmable Features |
Dondload |
SiT9103 |
3-PLL, 3-Output
Differential Programmable
Clock Generator |
Up to 800 MHz
LVPECL, LVDS, CML or HCSL signaling
Operating voltage of 1.8 V, 2.5 V or 3.3 V
Any Voltage, Any Output
Center or Down Spread |
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SiT9104 |
3-PLL, 6-Output
Programmable
Clock Generator |
Any frequency up to 220 MHz
Industry’s smallest clock generator
Operating voltage of 1.8 V, 2.5 V or 3.3 V
Any Voltage, Any PLL
2 outputs from each PLL |
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| Voltage-Controlled MEMS Oscillators |
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SiTime’s programmable voltage-controlled MEMS oscillator (VCMO) combines a highly robust and reliable MEMS resonator with advance analog circuits to provide the most flexible and programmable solution for clock synchronization applications. The device’s extensive programmability enables delivery of customized samples in 24 hours and production quantities in 2 weeks with any combination of features including frequency, voltage, tolerance and package sizes. The ability to support factory-programmable pull range options from ±30 PPM to ±240 PPM in a single device is a unique SiTime feature not available in traditional voltage controlled crystal oscillators (VCXO).
In contrast with quartz based VCXO, the SiTime VCMO generates frequency variation by modulating the internal Fractional-N PLL as opposed to “pulling” of the crystal resonator. This results in industry-leading 0.5% linear pull range, representing significant improvement over the 5%-10% linearity offered by VCXOs. This enhancement allows system designers to simplify the clock synchronization algorithm, improve system lock time and provide better system stability.
SiTime’s all-silicon VCMOs offer best-in-class 2 FIT (500M Hours MTBF) performance which significantly improves system reliability and is an order of magnitude better than quartz-based oscillators. The broad flexibility that is offered by SiTime's devices ensures tremendous supply chain cost savings for OEMs and ODMs by allowing them to eliminate multiple suppliers, consolidate part numbers and inventory, and also shorten production lead time. |
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| Embedded Resonators |
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SiTime’s all-silicon, high performance MEMS resonators enable integration of the clock reference into our customer’s ICs. SiTime offers a wide range of embedded resonator timing solutions that encompass ultra low power applications (Real Time Clock, Sleep Mode), high-frequency (MHz) clocks for microprocessor and serial applications, and high frequency RF solutions. SiTime’s embedded resonators eliminate the need for external quartz crystals (XO) or other clocking components, ensuring that space- and height-constrained systems are the smallest, thinnest, most robust and reliable in the industry.
SiTime’s MEMS resonators are produced in SiTime’s patented MEMS-FIRST process which enables high Q, highly reliable, low drift and low cost resonators. These devices are extremely small and thin, resulting in easy integration into commonly used IC packages, using technology such as flip-chip, chip-stack, wire bonding and plastic over-molding.
Resonators are delivered to the customer as Known Good Die (KGD) which are 100% tested at the wafer level. To enable successful first-time-right design and easy integration, the customer also receives the drive circuit (oscillator) and associated IP in the form that they desire. |
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| Application-Specific Products |
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SiT9002AI: Differential Spread Spectrum Oscillator with HCSL Outputs for PCI-Express and FB-DIMM
SiT9102AC: Programmable Differential Output Oscillator for Gigabit Ethernet and 10 Gigabit Ethernet |
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