SIT9120AC-1C2-33E75.000000T

Frequency Stability:	±25ppm
Current - Supply (Disable) (Max):	35mA
Height - Seated (Max):	0.032" (0.80mm)
Size / Dimension:	0.197" L x 0.126" W (5.00mm x 3.20mm)
Package / Case:	6-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	69mA
Operating Temperature:	-20°C ~ 70°C
Series:	SiT9120
Voltage - Supply:	3.3V
Output:	LVPECL
Function:	Enable/Disable
Frequency:	75MHz
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Tape & Reel (TR)

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IntroductionOscillators are electrical components commonly used in electronic circuits, often for generating a signal with a certain frequency. Oscillators are versatile devices used for many purposes, such as producing precision-timed control pulses, providing an accurate reference frequency, or powering electronic logic gates.SIT9120AC-1C2-33E75.000000T is a high performance, Analog Phase Locked Loop (PLL) with an output frequency of up to 120 MHz. The device has a wide range of application fields, including high-speed transmission, base station synchronization, wireless and satellite communication systems, as well as digital signal processing. The SIT9120AC-1C2-33E75.000000T features a variety of features such as low power consumption, high voltage compatibility, low noise, and low jitter.Function and Working PrincipleThe SIT9120AC-1C2-33E75.000000T is capable of generating stable signals with minimal jitter at frequencies up to 120 MHz. To generate a signal with a desired frequency, the device contains an internal reference clock input, which is used to generate a stable signal. This signal is then locked with the external reference clock input. The output frequency of the SIT9120AC-1C2-33E75.000000T is determined by the ratio between the internal and external reference clocks.In addition to generating a stable signal with minimal jitter at frequencies up to 120 MHz, the SIT9120AC-1C2-33E75.000000T also features a Lock Timeout feature. This feature ensures that the PLL does not allow an output signal until the PLL has locked with the proper reference clock. This prevents the output from being disturbed by incorrect reference clock signals or other unwanted input signals.The SIT9120AC-1C2-33E75.000000T also features a charge pump current drive circuitry. This circuitry is used to assist in providing a precise voltage control across the device, ensuring the output signal remains stable and has minimal jitter. This also helps the device to achieve a lower power consumption than conventional PLLs, achieving power savings up to 40%.Furthermore, the device has built-in programmable current limit that allows for the adjustment of peak output current up to 675mA. This helps increase output accuracy and reduces the output noise floor.ConclusionIn conclusion, the SIT9120AC-1C2-33E75.000000T is an Analog Phase Locked Loop (PLL) with an output frequency of up to 120 MHz, and a wide range of application fields, such as high-speed transmission, base station synchronization, wireless and satellite communication systems, as well as digital signal processing. It is capable of generating stable signals with minimal jitter, and the Lock Timeout feature helps to prevent the output from being disturbed by incorrect reference clock signals or other unwanted input signals. The charge pump current drive circuitry helps to reduce power consumption, and the programmable current limit helps to increase output accuracy and reduce the output noise floor.

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