MAX9247ECM+T

Serializers, Deserializers Overview

The MAX9247ECM+T is a 27-bit DC-balanced LVDS serializer manufactured by Analog Devices Inc./Maxim Integrated. It operates within a parallel clock frequency range of 2.5MHz to 42MHz, supporting serial data rates up to 840Mbps. The device accepts 18 bits of RGB video data and 9 bits of control data, encoding them into a 20-bit serial stream. It features a 48-lead LQFP package with an operating temperature range of -40°C to +85°C. Power is supplied via a +3.3V core supply (VCC) and a separate input supply (VCCIN) ranging from 1.71V to 3.6V.

Serializers, Deserializers Feature Summary

• Proprietary data encoding ensures DC balance and reduces electromagnetic interference.
• Integrated preemphasis improves signal integrity and eye diagram quality at the output.
• Control data inputs C0 to C4 provide single-bit-error tolerance for critical signals.
• Programmable phase-shifted LVDS signaling further reduces EMI emissions.

Serializers, Deserializers Applications

• Navigation system displays
• In-vehicle entertainment systems
• Video cameras
• LCD displays

Serializers, Deserializers Procurement Notes

Verify the component against official datasheets to confirm pinout compatibility and electrical specifications. Ensure the ordering suffix matches the required temperature grade and packaging format. Cross-reference manufacturer part numbers to avoid counterfeit components during sourcing.

Serializers, Deserializers Selection Notes

Select this serializer when interfacing with MAX9248 or MAX9250 deserializers for digital video links. Ensure the application requires a 48-lead LQFP package and operates within the specified voltage and temperature ranges. Consider the integrated termination and ESD protection capabilities for robust design.

Serializers, Deserializers Part Context

The MAX9247 is part of a family of high-speed serializers designed for automotive and industrial video applications. It pairs with specific deserializers to form complete transmission systems. The ECM+ variant denotes the commercial temperature range and lead-free/RoHS compliance status.

Serializers, Deserializers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing deserializer components before considering alternative sources.

Serializers, Deserializers FAQ

How does the MAX9247 handle control data?

Control data is serialized during the video blanking phase. Inputs C0 to C4 are mapped to three bits each to provide single-bit-error tolerance, while C5 to C8 are mapped to one bit each.

What is the purpose of the CMF pin?

The Common-Mode Filter (CMF) pin allows connection of an optional capacitor to ground. This filters common-mode switching noise and reduces electromagnetic interference (EMI).

Can the MAX9247 be AC-coupled?

Yes, the device supports AC-coupling due to its DC-balanced encoding. Capacitors can be placed at either end of the link to block low-frequency ground shifts and common-mode noise.