MAX9247ECM+

Serializers, Deserializers Overview

The MAX9247ECM+ is a 27-bit, DC-balanced LVDS serializer designed for digital video transmission. It operates with 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 via LVTTL/LVCMOS inputs. It features a +3.3V core supply and a separate input supply (1.71V to 3.6V) for logic interfacing. The component is housed in a 48-lead LQFP package and is specified for operation from -40°C to +85°C.

Serializers, Deserializers Feature Summary

• Proprietary data encoding ensures DC balance and reduces electromagnetic interference.
• Integrated preemphasis improves eye diagram quality and signal integrity at the output.
• Programmable phase-shifted LVDS signaling further reduces EMI emissions.
• Supports single-bit-error tolerance for five control data inputs.

Serializers, Deserializers Applications

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

Serializers, Deserializers Procurement Notes

Verify the specific suffix 'ECM+' corresponds to the -40°C to +85°C temperature grade when sourcing. Confirm RoHS compliance status as indicated by the '+' designation. Ensure the supplier provides the official Maxim Integrated datasheet for electrical verification before integration into the design.

Serializers, Deserializers Selection Notes

Select this serializer when pairing with MAX9248 or MAX9250 deserializers for high-speed video links. Choose based on the required parallel clock frequency range using RNG0/RNG1 pins. Consider the separate VCCIN supply requirement for flexible logic voltage interfacing compared to fixed-voltage alternatives.

Serializers, Deserializers Part Context

This component belongs to the MAX9247 series of serializers. It is part of a complete digital video serial link solution when used with compatible deserializers like the MAX9248/MAX9250. The family supports various temperature grades, with the ECM+ variant covering the industrial range.

Serializers, Deserializers Replacement Considerations

The MAX9247GCM+ serves as a higher temperature grade replacement within the same package. For deserializer counterparts, consider the MAX9248 or MAX9250 depending on whether spread spectrum or output enable features are required.

Serializers, Deserializers FAQ

How does the MAX9247 handle DC balance?

It uses proprietary data encoding to maintain DC balance across the serial cable, which allows for AC-coupling and provides isolation between the transmitting and receiving ends.

What is the function of the PRE pin?

Driving the PRE pin high enables preemphasis mode, which adds extra current during transitions to improve the eye diagram and signal integrity.

Can the MAX9247 operate with the MAX9218 deserializer?

Yes, for operating frequencies less than 35MHz, the MAX9247 can pair with the MAX9218 deserializer.