SIT1602ACE3-33E

Frequency Stability:	--
Current - Supply (Disable) (Max):	4mA
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):	4.5mA
Spread Spectrum Bandwidth:	--
Operating Temperature:	-20°C ~ 70°C
Frequency Stability (Total):	±20ppm
Series:	SiT1602
Voltage - Supply:	3.3V
Output:	HCMOS, LVCMOS
Function:	Enable/Disable
Available Frequency Range:	3.75MHz ~ 77.76MHz
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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Programmable Oscillators

Programmable oscillators are versatile components used in electronics and communications applications. They are designed to provide a stable, calibrated frequency and can be adjusted via computer or some other method to match desired frequencies. The SIT1602ACE3-33E is a programmable oscillator that can be used in applications such as frequency synthesis, timing, and control.

Interrogation of Prototype

The SIT1602ACE3-33E is based on a CMOS design and is composed of two ICs, namely the PIC24F02CE3 and the ACE3-33E. The PIC24F02CE3 is a microcontroller with up to 6 Kbytes of flash memory, 12-bit Analog-to-Digital Converter, and 10-bit Digital-to-Analog Converter. The ACE3-33E is a temperature compensated synthesizer with a guaranteed temperature stability. It is designed with a one-time programmable 32-bit frequency word that can produce an output frequency range of 5.0 Hz to 3.3 MHz. It has a 3 Volt DC input power supply and a maximum output frequency deviation of 0.001%.The SIT1602ACE3-33E is encapsulated in a 5.0mm square molded plastic package and can withstand extended temperatures of -20° C to 85° C (-4°F to 185° F). It is rated as Industrial grade and thus is suitable for use in high temperature and/or humid environments.

Application Field

Due to its high frequency and temperature stability, the SIT1602ACE3-33E is an ideal option for frequency synthesis, timing, and control applications. It can be used in a variety of applications ranging from telecommunications, satellite navigation systems, military applications, medical equipment, process control, robotics, audio, video and lighting control systems, and other consumer electronics.For example, the SIT1602ACE3-33E is being utilized in the Insight system by VMWare, which is a virtual control system for large data centers. This system is used to monitor and adjust the power consumption of server systems and requires the accurate timing signal that the SIT1602ACE3-33E provides to operate efficiently.

Working Principle

The SIT1602ACE3-33E operates by producing either a square wave or a sine wave of a specified frequency. It receives a signal from an external source and subsequently decides the output frequency and waveform based on this signal.The SIT1602ACE3-33E then calculates the output signal period and the detuning parameters before translating the signal into corresponding digital codes (based on the received frequency). These digital codes are then used to set the internal filters, which sets the frequency of the output signal.Finally, the signal is amplified to the desired amplitude and then sent out to a power amplifier for distribution. The entire process can take anywhere from few anywhere from milliseconds to microseconds, depending on the size of the signal and the complexity of the calculations performed by the oscillator.

Conclusion

The SIT1602ACE3-33E is a versatile programmable oscillator with a wide range of applications. It has a guaranteed temperature stability, a one-time programmable 32-bit frequency word, and is encapsulated in a 5.0mm square molded plastic package. This makes it an ideal choice for frequency synthesis, timing, and control applications in various industries, ranging from telecommunications to consumer electronics. Its working principle involves modifications to the frequency and waveform of a signal and calculation of the output signal period and detuning parameters before being outputted to a power amplifier.

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