534NA002401DGR

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):	98mA
Operating Temperature:	-40°C ~ 85°C
Frequency Stability:	±50ppm
Voltage - Supply:	3.3V
Output:	LVDS
Series:	Si534
Frequency - Output 4:	481MHz
Frequency - Output 3:	480MHz
Frequency - Output 2:	479MHz
Frequency - Output 1:	478MHz
Type:	XO (Standard)
Base Resonator:	Crystal
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Pin Configurable/Selectable Oscillators

Pin configurable/selectable oscillators provide the user with the ability to select oscillation parameters such as frequency, voltage and load capacitance via external pin connections. The 534NA002401DGR is an example of such an oscillator. This device is capable of offering excellent stability and resolution over a range of oscillation characteristics.

External Connections

The 534NA002401DGR is a 4-pin surface-mount oscillator. Pin 1 is connected to the power supply and set to a fixed voltage. The operating voltage can be either 3.3V or 5.0V. Pin 2 is the input voltage, while pin 3 is the output voltage. Pin 4 is a ground connection. The input and output signals are stabilized by internal capacitors.

Frequency Selection and Output Characteristics

The 534NA002401DGR is designed to operate at frequencies between 48 and 75MHz. The frequency selection is accomplished using external pins. Pins 1 and 3 can be connected to a resistor to select the desired frequency. The resistor value and the voltage on the output pin determine the frequency. The output voltage is typically 3.0V and has a maximum swing of ±20%.

Clocking Mechanism

The 534NA002401DGR utilizes a clocking mechanism to select the desired frequency. A logic-level, conditioning circuit is required to control the clock, and the user can select between two different frequency ranges (48-66MHz and 66-75MHz). The clock frequency is determined by the voltage on the external pin. The maximum input voltage is 5.5V.

Load Capacitance and Tolerance

The 534NA002401DGR has an output load capacitance of 4.0 pF (±2.0 pF) which can be adjusted with an external resistor. The device has a 20% tolerance on the load capacitance. The maximum output current is 25mA.

Operating Temperature Range and Stability

The operating temperature of the 534NA002401DGR is from -40°C to +85°C. The device provides excellent stability over temperature, with a variation in output voltage of less than 5%.

Conclusion

The 534NA002401DGR is an extremely versatile pin configurable/selectable oscillator. This device offers excellent frequency selection, load capacitance and stability over a wide range of operating temperatures. The external pin connections make it very easy to use and configure. This device is ideal for applications that require high accuracy and reliable performance.

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