MAX9218ETM+T

Serializers, Deserializers Overview

The MAX9218ETM+T is a digital video serial-to-parallel converter (Deserializer) from Analog Devices/Maxim Integrated. It deserializes 27 bits total, converting an LVDS serial input into 18 bits of parallel video data and 9 bits of parallel control data. Operating at a parallel clock frequency of 7MHz to 35MHz, it supports a maximum serial data rate of 700Mbps. The device uses a +3.3V core supply and features a separate VCCO output supply for interfacing with 1.8V to 3.3V logic levels. It is housed in a 48-lead Thin QFN package and operates within a temperature range of -40°C to +85°C.

Serializers, Deserializers Feature Summary

• Proprietary data decoding provides DC balance and reduces electromagnetic interference (EMI).
• Control data is deserialized during the video blanking period.
• Five control data inputs are single bit-error tolerant using majority voting.
• Output transition time scales to operating frequency to minimize EMI.

Serializers, Deserializers Applications

• Navigation System Display
• In-Vehicle Entertainment System
• Video Camera
• LCD Displays

Serializers, Deserializers Procurement Notes

Verify the specific suffix ETM+T against the manufacturer's current ordering information to confirm the package type and tape-and-reel delivery format. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the datasheet revision date to confirm that all electrical characteristics and timing parameters match your design specifications before finalizing procurement.

Serializers, Deserializers Selection Notes

Select this deserializer when pairing with the MAX9217 serializer for complete digital video transmission systems. Ensure the application requires a parallel clock frequency between 7MHz and 35MHz. Verify that the system can accommodate the required separate power supplies for the core (VCC), LVDS inputs (VCCLVDS), and outputs (VCCO). Confirm that the 48-lead Thin QFN package footprint fits the board layout constraints.

Serializers, Deserializers Part Context

The MAX9218 is part of the Maxim Integrated digital video SerDes family designed for high-speed, low-EMI video transmission. It specifically addresses the need for DC-balanced signaling over twisted-pair cables in automotive and industrial environments. The device complements serializers like the MAX9217 to form robust point-to-point video links.

Serializers, Deserializers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's official replacement guide or contact technical support for qualified alternatives if this specific package variant is unavailable.

Serializers, Deserializers FAQ

How does the MAX9218 handle control data?

Control data is deserialized during the video blanking period. Inputs C0 to C4 use majority voting for single bit-error tolerance, while C5 to C8 are determined by their own level without voting.

What is the function of the OUTEN pin?

The OUTEN pin enables or disables the LVTTL/LVCMOS outputs. Driving it low places the outputs in a high-impedance state, allowing multiple MAX9218 devices to be bused together.

Can the MAX9218 operate with AC coupling?

Yes, the proprietary data decoding provides DC balance, which allows the use of AC coupling capacitors to isolate the transmitting and receiving ends of the interface.