SIT9003AC-3-33DQ

Frequency Stability:	±50ppm
Current - Supply (Disable) (Max):	4.3µA
Height:	0.031" (0.79mm)
Size / Dimension:	0.197" L x 0.126" W (5.00mm x 3.20mm)
Package / Case:	4-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	4.1mA
Spread Spectrum Bandwidth:	-1.00%, Down Spread
Operating Temperature:	-20°C ~ 70°C
Frequency Stability (Total):	±50ppm
Series:	SiT9003
Voltage - Supply:	3.3V
Output:	LVCMOS, LVTTL
Function:	--
Available Frequency Range:	1MHz ~ 75MHz
Programmable Type:	Programmed by Digi-Key (Enter your frequency in Web Order Notes)
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Bulk

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SIT9003AC-3-33DQ Programmable Oscillators

The SIT9003AC-3-33DQ is a Programmable Oscillators integrated circuit developed by Silicon Laboratories Inc. It is a cost-effective solution for networking, computing and consumer application such as modems, fax machines, home entertainment systems and embedded systems. The SIT9003AC-3-33DQ supports up to 3 GHz clock output frequency, with configurable options for selectable duty cycles, VCOs and latching opto-isolators.

Application Field

The SIT9003AC-3-33DQ is a versatile integrated circuit ideal for a wide range of applications requiring programmable frequency, duty cycle and output type. The Programmable Oscillators capabilities can be utilized in wireless communications applications such as Wi-Fi routers, wireless dongles, 802.11ac base station, DSL modems, satellite TV receivers, Bluetooth modems, Infrared wireless devices, and many others. It can also be used for general embedded systems, such as in home appliances, automotive systems, and gaming consoles.

Working Principle

The SIT9003AC-3-33DQ is an integrated circuit that allows users to program the frequency and duty cycle of an oscillator. It consists of a main oscillator, VCO (Voltage Controlled Oscillator), programmable frequency dividers, a clock driver, and a latch opto-isolator. The oscillator uses the input clock frequency and the frequency dividers to determine the output frequency. The input clock frequency can be manually programmed or configured using the VCO. The VCO can be used to program the frequency to within 1 MHz of the input clock frequency, ranging from 0.5 to 20 MHz. The frequency dividers are programmable and can be used to divide the input frequency by up to 16. The clock driver is used to drive the output signal from the oscillator to the desired frequency, with the output frequency range being from 0.5 to 20 MHz with a programmable duty cycle up to 90%. The latch opto-isolator provides isolation between the output and the input signals, allowing for safe operation and preventing interference from outside sources.

Conclusion

The SIT9003AC-3-33DQ is a versatile integrated circuit that provides users with the ability to control the frequency and duty cycle of an oscillator, allowing for applications such as wireless communication, general embedded systems, and many others. Its features such as the VCO, frequency dividers and latch opto-isolator, make it a reliable, cost-effective solution for a variety of applications.

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