Voltage Controlled Crystal Oscillator F1523BA

Category: Electronics, Fox Electronics Inc, Oscillators

The F1523BA is a Voltage Controlled Crystal Oscillator (VCXO) manufactured by Fox Electronics. A key feature of this device is its capability to operate within the frequency range of 30 MHz to 54 MHz while providing a cost-effective solution for managing frequency stability in various electronic applications.

Features

Industry Standard: It’s designed to meet or surpass the typical specifications set by the industry.
High Pullability: The device demonstrates high pullability, which refers to the range of frequency adjustment via the control voltage.
Tight Stability: The oscillator offers tight frequency stability, an essential factor in many critical applications.
Low Cost: Offered at a competitive price.
Extended Temperature Range: With an option (FIS23BAM), it can operate in temperatures ranging from -40 to +85°C.
Driving Capability: Capable of driving up to 8 TTL (Transistor-Transistor Logic) loads.

Applications

Phase-Locked Loops (PLLs)
Synthesizers
Frequency Modulation Applications

Electrical Characteristics

Operating at a supply voltage (VDD) of 5.0V and a load capacitance (CL) of 15pF, the VCXO’s key electrical characteristics are:

Parameters

Frequency Range: The oscillator operates from 30.000 MHz to 54.000 MHz.
Frequency Stability: The stability is within ±25 PPM under various conditions including temperature range, voltage supply variations, load changes, aging, shock, and vibration.
Temperature Range: Can operate between -40 to +70°C and withstand storage temperatures from -40 to +125°C.
Control Voltage (Vc): The control voltage ranges from 0.5V to 4.5V, affecting the pullability.
Input Current (IDD): The device’s input current ranges from 7 mA to 20 mA.
Output Symmetry, Rise and Fall Times, Output Voltages and Currents: Specific performance metrics that detail how the output signal behaves in response to given input triggers and conditions.
Output Load: The oscillator is capable of interfacing with TTL or HCMOS logic.
Start-up Time: The time required for the oscillator to stabilize from a cold start.
Phase Noise: The oscillator exhibits a phase noise level of -125 dBc/Hz at 1 kHz offset and -130 dBc/Hz at 10 kHz offset, which highlights the purity of the output frequency signal.
Frequency Stability vs Voltage: Demonstrates stability within ±1.0 PPM with regards to voltage changes.
Linearity: Shows the proportionality between control voltage changes and frequency deviations.
Modulation Bandwidth: The oscillator’s response to modulation over a range of frequencies.

Other datasheet specifics include pin connections, physical dimensions in millimeters, and contact information for Fox Electronics. The corner pin is used to denote pin number one of the device, providing ease of integration into circuit designs. The document also notes that the specifications are subject to change without prior notice, with the referenced issue date being March 3, 2000.