## Summary of the SC3042B Datasheet

This document is a datasheet for the RFM SC3042B 624.00 MHz Surface Mount Crystal Oscillator. Here's a breakdown of the key information:

Core Functionality:

️· Type: Surface Mount Crystal Oscillator
️· Frequency: 624.00 MHz
️· Output: Differential (Q and Q')
️· Application: High-frequency clock source, likely for communications or high-speed digital applications.

Key Specifications:

️· Supply Voltage: +3.13 to +3.47 VDC
️· Operating Current: 20-40 mA
️· Operating Temperature: 0 to +70 °C
️· Jitter: Specifications for period jitter are provided; measured with Tektronix CSA803 with 1000 samples. Important to note that jitter measurements *exclude* the effects of external noise or mechanical vibration.
️· Symmetry: Defined as pulse width (in percent of total period) at the 50% points of Q or Q'.
️· Load Impedance: 50 Ohms (typically)

Important Notes & Cautions:

️· ESD Sensitive: Handle with proper electrostatic discharge precautions.
️· External Noise: Jitter specifications don't include the influence of external electrical noise or mechanical vibration. Proper power supply regulation and PCB layout are recommended for optimal performance.
️· Patents: One or more US patents apply to this device.
️· Dimensions & Footprint: Detailed mechanical dimensions and PCB land pattern are included for proper mounting.
️· Test Circuit: A typical test circuit is provided.

Key Features/Highlights:

️· High Frequency (624 MHz)
️· Surface Mount Package
️· Stable Frequency Output
️· Differential Output for improved noise immunity.

Essentially, this datasheet provides all the necessary information for engineers to integrate the RFM SC3042B into their designs, including electrical characteristics, mechanical dimensions, and handling precautions.