Description:CTS Model 638 is a low cost, high performance clock oscillator supporting differential LVPECL or LVDS outputs.Employing the latest IC technology, M638 has excellent stability and low jitter/phase noise performance.
STANDBY; ENABLE/DISABLE FUNCTION; COMPLIMENTARY OUTPUT; TR, 7 INCH
Fall Time-Max:
0.7 ns
Frequency Adjustment-Mechanical:
NO
Frequency Stability:
50%
JESD-609 Code:
e4
Mounting Feature:
SURFACE MOUNT
Number of Terminals:
6
Operating Frequency-Nom:
156.25 MHz
Operating Temperature-Max:
85 °C
Operating Temperature-Min:
-40 °C
Oscillator Type:
LVPECL
Output Load:
50 OHM
Package Body Material:
CERAMIC
Physical Dimension:
7.0mm x 5.0mm x 2.0mm
Rise Time-Max:
0.7 ns
Supply Voltage-Max:
3.465 V
Supply Voltage-Min:
3.135 V
Supply Voltage-Nom:
3.3 V
Surface Mount:
YES
Symmetry-Max:
55/45 %
Terminal Finish:
Gold (Au) - with Nickel (Ni) barrier
638P15623I3T Frequently Asked Questions (FAQs)
The recommended operating temperature range for the 638P15623I3T is -40°C to +85°C, as specified in the datasheet. However, it's essential to note that the device can be operated at temperatures beyond this range, but with reduced performance and reliability.
To ensure reliable startup, it's crucial to follow the recommended power-up sequence and provide a stable power supply voltage. Additionally, the oscillator should be decoupled from the power supply lines using capacitors, and the load capacitance should be within the specified range.
The maximum allowable frequency deviation for the 638P15623I3T is ±50 ppm over the entire operating temperature range. This deviation is due to the inherent characteristics of the crystal and the oscillator circuitry.
While the 638P15623I3T is designed to operate in various environments, it's essential to consider the vibration sensitivity of the device. The oscillator is sensitive to vibrations, which can affect its frequency stability. If you plan to use the device in a high-vibration environment, you should take measures to isolate the oscillator or use a vibration-resistant mounting method.
To troubleshoot issues with the 638P15623I3T oscillator, start by verifying the power supply voltage and ensuring it's within the specified range. Check the oscillator's output frequency and amplitude using an oscilloscope or frequency counter. If the issue persists, inspect the PCB layout and ensure that the oscillator is properly decoupled and loaded. Consult the datasheet and application notes for further guidance.
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Manufacturer Collaborated
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System Verified
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Sponsored
638P15623I3T Overview
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