SSD (Solid State Drive)

Overview
SiTime Solutions
SSD Block Diagram
Design Considerations

The benefit of having SSDs is that there are no mechanical spinning parts. Because they are solid state, SSDs are inherently fast, reliable, and shock resistant. SiTime helps to make SSDs even more reliable by offering all-silicon MEMS oscillators, which are 10 times more robust and reliable than quartz crystal oscillators.

SiTime offers

The best reliability
Most cost effective high frequency oscillator
Ultra fast lead time

SiTime offers a complete portfolio of timing solutions that are targeted at SSD applications. Our MEMS oscillators provide clocks to every interface protocol used in SSD devices such as SATA, SAS, Infiniband, and PCIe. Here are some feature of SiTime's SSD solutions:

10 times more reliable than crystal oscillator
Best Robustness (Up to 50,000 G shock and 70 G vibration)
2.5x2.0 mm package at the same price as bigger packages
±25 ppm for price of ±50 ppm
150 MHz LVCMOS oscillator for same price as 75 MHz
Ultra fast lead time (2-3 weeks)

SiTime's MEMS Oscillator Solutions for SSD

Applications	SiTime Solutions	Key Features
SATA and SAS	SiT9102AC-232N33E150.00000	150MHz (LVDS), ±25PPM, 3.3 V, 5.0x3.2mm package, Output Enable control
	SiT8004AC-12-33E-150.00000	150MHz (SE), ±25PPM, 3.3 V, 2.5x2.0mm package, Output Enable control
	SiT8003AC-12-33E-75.00000	75MHz (SE), ±25PPM, 3.3 V, 2.5x2.0mm package, Output Enable control
	SiT8003AC-12-33E-62.50000	62.5MHz (SE), ±25PPM, 3.3 V, 2.5x2.0mm package, Output Enable control
	SiT8003AC-12-33E-50.00000	50MHz (SE), ±25PPM, 3.3 V, 2.5x2.0mm package, Output Enable control
	SiT8003AC-12-33E-37.50000	37.5MHz (SE), ±25PPM, 3.3 V, 2.5x2.0mm package, Output Enable control
	SiT8003AC-12-33E-31.25000	31.25MHz (SE), ±25PPM, 3.3 V, 2.5x2.0mm package, Output Enable control
PCIe and Infiniband	SiT9102AC-232N33E200.00000	200MHz (LVDS), ±25PPM, 3.3 V, 5.0x3.2mm package, Output Enable control
	SiT9102AC-232N33E100.00000	100MHz (LVDS), ±25PPM, 3.3 V, 5.0x3.2mm package, Output Enable control
	SiT8003AC-12-33E-100.00000	100MHz (SE), ±25PPM, 3.3 V, 2.5x2.0mm package, Output Enable control

SiTime products also offer the following options for customization

Any frequency between 1 and 200 MHz with 5 decimal places of accuracy
LVDS, LVPECL, HCSL, and CML differential signaling
Operation at 1.8V, 2.5V, 2.8V or 3.3V, configurable.
2520, 3225, 5032 and 7050 packages
Spread spectrum for EMI reduction for SATA, SAS and PCIe
- SiT9003 Single-Ended (SE) for low power applications
- SiT9001 Single-Ended (SE) for any frequency above 110 MHz
- SiT9002 for differential clocks

app-block-sdi

	SATA or SAS Clock frequency (MHz)						PCIe Frequency (MHz)		Infiniband Frequency (MHz)
	31.25	37.5	50	62.5	75	150	100	200	100	200
SiT8003 (SE)
SiT8004 (SE)
SiT9102 (Differential)
SiT9001/9003 (SE) Spread Spectrum
SiT9002 (Differential) Spread Spectrum

SiTime offers standard as well as Spread Spectrum oscillators for EMI reduction
All SiTime's oscillators are drop-in replacement for Crystal oscillators

Design Considerations	MEMS Oscillator Features
Smaller and thinner design More components in less space	2.5x2.0mm package at any frequency, stability and voltage Thinnest package at <0.25 µm
Best reliability	2 FIT = 500,000,000 hours MTBF
Resistance to shock and vibration	50,000 G shock resistance 70 G vibration resistance
Eliminate EMI and interference issues between different subsystems	Spread spectrum technique
Shorter lead time to minimize inventory and meet demand spikes	2-4 weeks lead time, best in the industry as the result of programmable MEMS platforms

SiTime, Silicon MEMS Oscillators and Clock Generators

SSD (Solid State Drive)

Applications

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