554MF000156DGR

Function:	Enable/Disable
Current - Supply (Disable) (Max):	75mA
Package / Case:	8-SMD, No Lead
Height:	0.071" (1.80mm)
Size / Dimension:	0.276" L x 0.197" W (7.00mm x 5.00mm)
Current - Supply (Max):	130mA
Operating Temperature:	-40°C ~ 85°C
Frequency Stability:	±50ppm
Voltage - Supply:	3.3V
Output:	LVPECL
Series:	Si554
Frequency - Output 4:	--
Frequency - Output 3:	--
Frequency - Output 2:	--
Frequency - Output 1:	125MHz, 155.52MHz, 156.25MHz, 166.62857MHz
Type:	VCXO
Base Resonator:	Crystal
Part Status:	Active
Packaging:	Tape & Reel (TR)

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554MF000156DGR - Pin Configurable/Selectable Oscillators

Pin configurable/selectable oscillators are electronic circuits used to convert an applied input current into an output voltage at a predetermined frequency. 554MF000156DGR is one such oscillator that is widely used in a variety of applications. This comprehensive article will discuss its application field, working principle, circuit configuration, and more. The 554MF000156DGR oscillator chip is a two-pin device that can generate a clock signal as input voltage. It features a selectable frequency with a low noise output over the entire range. It is available in a wide range of frequencies ranging from 100Hz to 33MHz with a 0.5% tolerance. The hysteresis voltage applied on the input is adjustable from ±5mV to ±155mV. It is also able to produce a low-ripple voltage, which makes it suitable for use in applications that require stable voltages. This pin configurable oscillator is primarily used in communication and automotive applications. In both industries, the device is used to produce clocks for various operations. It is designed in an advanced phase-locked loop (PLL) topology and has high immunity to jitter. This makes it suitable for use in communications systems that demand high-accuracy control signals. Moreover, it is widely used to control the speed of motors and other mechanical devices in the automotive industry.

Working Principle

The working principle of the 554MF000156DGR oscillator is based on a phase-locked loop (PLL) circuit. A PLL characteristic is detected when the feedback voltage matches the input voltage. This means that the loop has to be continually oscillating in order for the circuit to operate correctly. When the loop matches both the frequency and phase of the input voltage, the output voltage is generated. In the 554MF000156DGR oscillator, a sawtooth waveform is applied to the VCO input. This is then sent to the op-amp, which acts as a voltage-controlled oscillator (VCO). Due to the fact that it is current-controlled, the VCO output is a function of the applied current. The op-amp then controlling the VCO frequency, which produces the output voltage.

Circuit Configuration

The circuit configuration of the 554MF000156DGR is relatively simple and consists of just a few components. It basically consists of a voltage-controlled oscillator, an op-amp, and a selector. The oscillator and op-amp are connected in series with the selector acting as a switch. The selector allows for the output signal to be adjusted to the desired frequency. It works by changing the signal strength of the input voltage before it is sent to the op-amp. This, in turn, affects the output frequency of the signal. The output signal is then fed back to the input, completing the phase-locked loop.

Benefits

The 554MF000156DGR offers a number of benefits over other conventional oscillators. Firstly, it is smaller and more compact compared to other oscillators of the same frequency. This makes it ideal for space-constrained applications. Additionally, it consumes less power than other oscillators, making it more energy-efficient. Furthermore, its wide resonator range means that it can be used in a variety of applications. This includes a wide range of automotive electronics, communications systems, and other devices that require a reliable clock signal. Finally, it has high immunity to jitter, ensuring that the output signal is always stable and accurate.

Conclusion

In conclusion, the 554MF000156DGR oscillator is a versatile and reliable device that is commonly used in a variety of applications. It is designed to produce a wide range of frequencies with a low noise output, making it ideal for use in devices that require precision control. It features a PLL topology that allows for frequency adjustment and has high immunity to jitter. The circuit is fairly simple, requiring just a few components, which makes it more cost-effective than other oscillators. Finally, it is small and requires less power, making it suitable for space-constrained and energy-efficient applications.

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