MINIATURE SMD HCMOS OSCILLATOR F3345/F3355

Category: Electronics, Fox Electronics Inc, Oscillators

Overview

The MINIATURE SMD HCMOS OSCILLATOR F3345/F3355 series are highly reliable, hermetically sealed ceramic packaged surface mount oscillators designed for various applications including portable computers, telecommunication devices, and instrumentation.

Features

These oscillators boast several features such as a Miniature Package, Tri-State Enable/Disable functionality, and a 3000 G Shock Resistance. They are also available in Tape and Reel packaging for automatic assembly processes, with standard quantities of 2,000 pieces.

Electrical Characteristics

The electrical characteristics provided apply to a supply voltage (VDD) of 5.0V with maximum load conditions. The Frequency Range for the F3345 extends from 1.544 MHz to 80.000 MHz, whereas for the F3355, it extends from 1.544 MHz to 50.000 MHz. Frequency stability for both models is maintained within ±100 parts per million (PPM) under all conditions, and they can operate over a temperature range of -10°C to +70°C, with a storage temperature range wider at -35°C to +125°C.

Important electrical parameters such as supply voltage (VDD), input current (IDD), output symmetry, rise time (TR), fall time (TF), output voltage levels for both low (VoL) and high (VOH) states, output current for low (IOL) and high (IOH) states, output load, start-up time (TS), and enable/disable time are detailed with minimum and maximum values across the frequency range. These specifications encompass the tolerances for temperature, voltage change, load change, aging, shock, and vibration.

Model Number Selection

Selection of the correct model is critical for targeting specific operating temperatures and frequency ranges. Model numbers are constructed based on frequency stability, operating temperature range, and the particular series, with a detailed selection guide provided for choosing the appropriate oscillator for an application. It is suggested to place a 0.01µF bypass capacitor between VDD (Pin 4) and GND (Pin 2) to reduce power supply line noise.

Enable/Disable Function

An internal pull-up resistor from pin to pin enables active output if the enable pin (Pin 1) is left open. The ENABLE DISABLE FUNCTION details the logic levels required on INH (Pin 1) to control the oscillator’s output (Pin 3), stating that leaving the enable pin open or at a high level keeps the output active, while a low level (<0.8V) puts the output in a high impedance (HighZ) state.

Mechanical Specifications

The datasheet provides a recommended max 7.5 mm Solder Pad Layout and the Pin Connections clearly labeled for ease of assembly. Dimensions are given in millimeters, with additional details available on another page in the document for tape and reel specifications.

Manufacturer Information

The oscillator is manufactured by FOX Electronics, located in Fort Myers, Florida, with the contact details and website provided for further inquiries or support.