SIT9005ACA1H-XXDB

Frequency Stability:	±20ppm, ±25ppm, ±50ppm
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:	±0.25%, Center Spread
Operating Temperature:	-20°C ~ 70°C
Frequency Stability (Total):	--
Series:	SIT9005
Voltage - Supply:	2.5 V ~ 3.3 V
Output:	LVCMOS
Function:	--
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: SIT9005ACA1H-XXDB

Programmable oscillators are electronic devices that that are used in a wide variety of electronic circuits. They are designed to provide an adjustable frequency output signal in response to an input signal. They are used in a variety of applications ranging from triggering with precision timing to measuring frequency or period.The SIT9005ACA1H-XXDB is a programmable oscillator from SiTime Corporation. It is a low profile advanced programmable oscillator that is ideal for frequency control of applications such as global navigation satellite systems (GNSS), precision timing applications, and frequency control applications.

Features

The SIT9005ACA1H-XXDB programmable oscillator contains a number of features that make it an ideal choice for precision timing applications. It has a frequency range of 9.5 MHz to 160MHz and its output jitter is less than 7 ps over 12 kHz to 20MHZ. It also features low power consumption (operates at 1.3mA max), Frequency Tunability Range of +/-40-250ppm and Frequency Settability Range of +/-1ppm. It also offers a range of ECL output options, including SINE, SQ-AM, and a Tri-state option.

Application Fields

The SIT9005ACA1H-XXDB offers a range of applications in a variety of fields. It is an ideal choice for precision timing applications such as:• Cellular base stations • Radars • Low noise signal sources • Phonetics • GNSS applications such as GPS and Galileo • Automotive video systems • Ultrasonic testing • Microwave communication systems • Non-contact switching

Working Principle

The SIT9005ACA1H-XXDB programmable oscillator works on the principle of frequency control and period measurement. It utilizes advanced analog ICs and digital ICs to provide a precise frequency output signal. The oscillator also uses a voltage-controlled oscillator (VCO) to provide an adjustable output signal.The oscillator uses an integrated circuit that contains an R-2R ladder network. The R-2R ladder network is used to convert the voltage of the VCO into digital logic. This digital logic sends control signals to a digital phase-locked loop (DPLL) to accurately adjust the frequency of the output signal. The oscillator can also be programmed by changing the digital code of the oscillator. This code is stored in an external memory. Once the code is changed, it is sent to the oscillator via an interface, such as I2C, SPI or USB, to adjust the frequency of the output signal.

Conclusion

The SIT9005ACA1H-XXDB is a low profile and low power consuming programmable oscillator that is ideal for frequency control applications. It features a frequency range of 9.5 MHz to 160MHz and its output jitter is less than 7 ps over 12 kHz to 20MHZ. It is suitable for a range of applications, including cellular base stations, radars, GNSS applications, ultrasonic testing and non-contact switching. It works on the principle of frequency control and period measurement, utilizing advanced analog and digital ICs to provide a precise frequency output signal.

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