SIT9005ACL2D-25SC

Frequency Stability (Total):	--
Current - Supply (Disable) (Max):	4.3µA
Height:	0.030" (0.76mm)
Size / Dimension:	0.126" L x 0.098" W (3.20mm x 2.50mm)
Package / Case:	4-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	6.5mA
Spread Spectrum Bandwidth:	-0.78%, Down Spread
Operating Temperature:	-20°C ~ 70°C
Series:	SIT9005
Frequency Stability:	±20ppm, ±25ppm, ±50ppm
Voltage - Supply:	2.5V
Output:	LVCMOS
Function:	Standby
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 - SIT9005ACL2D-25SC application field and working principle

Programmable oscillators are closed loop microwave phased locked frequency control ICs used to generate a relatively stable, accurate and programmable frequency signal output. They are highly integrated devices, incorporating all the necessary required for their functioning and are increasingly being deployed in many types of products. SIT9005ACL2D-25SC is specifically a programmable oscillator integrated circuit manufactured by Silicon Interface, incorporated in a 5x5mm Plastic Leadless Chip Carrier (PLCC20) package.

Application Field of SIT9005ACL2D-25SC

SIT9005ACL2D-25SC oscillator is mainly used in the application fields where low-power and low-output signal, low jitter and high-precision frequency control, in addition to the cost-effectiveness, is highly desired. These include industrial and consumer products, communication networks, automotive electronics, gaming industry, medical and health care applications, military equipment and other general control circuits.Considering its small size and its suitability for Harsh Environment applications, SIT9005ACL2D-25SC oscillator also has various automotive usages such as Automotive Infotainment systems, Navigation Systems and Vehicle Telematics.

Features of SIT9005ACL2D-25SC

SIT9005ACL2D-25SC oscillator offers one of the most excellent performance from a programmable oscillator in its given product class. The frequency output range of the oscillator is from 40kHz to 1.2GHz with a frequency stability of +/-20ppm. It has an output level of -90dBm for a frequency as low as 40kHz and -60dBm for a frequency as low as 1.2GHz. The Phase Noise of SIT9005ACL2D-25SC oscillator is decent, -156dBc/Hz at 10KHz offset. The device also supports temperature compensation.Furthermore, the SIT9005ACL2D-25SC oscillator consumes very low power with an input voltage of 3.3V- 3.6V. The supply current is 0.2mA, optical jitter is 4ps and standby current is 0.02mA. It also has an operating temperature range of -55 degrees Celsius to +125 degrees Celsius.

Working Principle of SIT9005ACL2D-25SC

The SIT9005ACL2D-25SC oscillator works on a Hybrid architecture-based phase-locked loop (PLL) system. The PLL is an analog/digital circuit that consists of two parts, a digital part and an analog part. The digital part consists of programmable processing blocks, while the analog part consists of a VCO and a loop filter. The programmable blocks generate clock signals, while the loop filter provides an optimal phase shift between the VCO output and the reference clock signal.The programmable processing blocks are used to generate the fixed clock frequency given as input, which is then compared with the output of the VCO. The loop filter shapes the phase shift between the VCO output and the reference clock signal, allowing for the adjustment of the PLL loop bandwidth, phase shift, and output frequency as per requirement. The output frequency is then equal to the reference frequency and is stable and accurate.

Conclusion

SIT9005ACL2D-25SC oscillator is a highly integrated, high performance device from the family of programmable oscillators, manufactured by Silicon Interface. It is a suitable, low-power and cost-efficient choice, suitable for applications like communication networks, gaming industry, automotive electronics and navigation systems. Functioning on a hybrid architecture-based phase-locked loop system, the device generates a highly stable, accurate and programmable frequency signal output.

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