SIT9005ACR1G-25ED

Frequency Stability (Total):	--
Current - Supply (Disable) (Max):	6.5mA
Height:	0.030" (0.76mm)
Size / Dimension:	0.098" L x 0.079" W (2.50mm x 2.00mm)
Package / Case:	4-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	6.5mA
Spread Spectrum Bandwidth:	-1.04%, Down Spread
Operating Temperature:	-20°C ~ 70°C
Series:	SIT9005
Frequency Stability:	±20ppm, ±25ppm, ±50ppm
Voltage - Supply:	2.5V
Output:	LVCMOS
Function:	Enable/Disable
Available Frequency Range:	1MHz ~ 141MHz
Programmable Type:	Programmed by Digi-Key (Enter your frequency in Web Order Notes)
Type:	SSXO
Base Resonator:	MEMS
Part Status:	Active

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Programmable Oscillators

Programmable oscillators, otherwise known as digital programmable oscillators (DPOs), are an oscillator IC that can be programmed with digital inputs in order to achieve a wide range of output frequencies and other parameters. These devices are widely used in a variety of electronic and telecommunications applications. One such oscillator IC is the SIT9005ACR1G-25ED. This article will describe the application field of the SIT9005ACR1G-25ED, as well as its working principle.

Application Field

The SIT9005ACR1G-25ED is a programmable oscillator with an output frequency range from 0.4MHz to 85MHz. This device is well suited for a variety of TX/RX applications that require high frequency stability. This includes Wi-Fi applications, 4G/LTE modems, Automotive infotainment radios, GPS receivers and many more.The SIT9005ACR1G-25ED also has a very low power consumption of only 50mW, which makes it well suited for portable battery powered applications. This contributes to its popularity in the aforementioned applications.

Working Principle

The SIT9005ACR1G-25ED utilizes a quartz crystal oscillator as its reference frequency. The crystal is connected to a programmable digital logic circuitry, which allows the unit to be programmed with digital input signals. The logic circuitry takes in the frequency and timing information from the digital input signals, which is then used to determine the output frequency of the unit.The SIT9005ACR1G-25ED also features an integrated active crystal control loop (CCL) to ensure the output frequency remains stable, even in the presence of large voltage variations. The CCL also allows for very fast lock times, which results in a very small time delay between the input and output signals.

Conclusion

The SIT9005ACR1G-25ED is a highly versatile programmable oscillator IC whose output frequency can be programmed with digital inputs. This makes it ideally suited for a variety of TX/RX applications that require high frequency stability. The SIT9005ACR1G-25ED also consumes very little power and has an integrated active crystal control loop for improved stability and fast lock times.

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