SIT9001AI-43-25E2-20.00000Y 데이터 시트보기 (PDF) - Unspecified

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SIT9001AI-43-25E2-20.00000Y

High Performance Spread Spectrum Oscillator

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SiT9001

High Performance Spread Spectrum Oscillator

TThhee SSmmaarrtt TTiimmiinngg CChhooiiccee

Description

The SiT9001 is a spread-spectrum capable, programmable

MEMS oscillator. The SiT9001 offers unparalleled flexibility in

terms of frequency range, frequency accuracy stability, supply

voltage, and operating temperature range while simultane-

ously offering outstanding performance in terms of low jitter

and a higher frequency range. This flexibility and high perfor-

mance is made available in packages down to 2.5 x 2.0 mm,

making the SiT9001 the smallest programmable

spread-spectrum oscillator available.

The SiT9001 is factory programmable and offers two types of

spread modulation: down spread modulation, and center

spread modulation. In down spread modulation mode, a

spread disable pin is available (Pin 1).

Power down (either output enable or standby) mode options

are available for both down spread and center spread versions

of the SiT9001.

The SiT9001, by eliminating the quartz crystal, has improved

immunity, shock, strain and humidity.

To order samples, go to www.sitime.com and click on Request

Sample” link.

Spread Spectrum Modes[4]

Center Spread

Down Spread

Code

Down Spread

Code

Down Spread

Note:

4. In both modes, triangle modulation is employed with a frequency of ~32 kHz.

.

1

Down Spread

4

Down Spread

2

Down Spread

5

Down Spread

3

Down Spread

6

Down Spread

Down Spread: -2%

Down Spread: -1%

Down Spread: -0.5%

The SiT9001 can be factory programmed to provide down spread modulation or center spread modulation. In the down spread

modulation mode, pin 1 can be factory programmed as a spread disable pin. In both the down spread and center spread

modulation modes, pin can be factory programmed to be either output enable or standby.

Rev. 1.2

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