MAX9250ECM/V+

Serializers, Deserializers Overview

The MAX9250ECM/V+ is a 27-bit DC-balanced LVDS deserializer operating at parallel clock frequencies from 5MHz to 42MHz. It converts a single LVDS serial input into 18 bits of parallel video data and 9 bits of parallel control data. The device features a separate +3.3V core supply and an independent output supply (VCCO) supporting 1.8V to 3.3V logic levels. It includes an output enable input for busing, selectable rising or falling latch edges, and ±2% reference clock tolerance. Packaged in a 48-lead LQFP, it operates from -40°C to +105°C.

Serializers, Deserializers Feature Summary

• Proprietary data decoding provides DC balance and reduces electromagnetic interference.
• Output enable input allows multiple devices to bus outputs together.
• Control data is deserialized during video blanking periods.
• Five control data inputs are tolerant of single-bit errors.

Serializers, Deserializers Applications

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

Serializers, Deserializers Procurement Notes

Verify the specific suffix 'ECM/V+' against official documentation to confirm package type and temperature range. Confirm RoHS compliance status as required by local regulations. Ensure the ordering code matches the exact manufacturer part number to avoid compatibility issues with serializer pairs.

Serializers, Deserializers Selection Notes

Select this component when output busing is required, as it features an OUTEN pin unlike the spread-spectrum MAX9248. Ensure the application frequency falls within the 5MHz to 42MHz range. Verify that the downstream logic voltage levels match the VCCO supply configuration for proper interface compatibility.

Serializers, Deserializers Part Context

This device belongs to the MAX9248/MAX9250 family of digital video serial-to-parallel converters. It is designed to pair with the MAX9247 serializer for complete transmission systems. The MAX9250 variant specifically provides output enable functionality for busing applications, distinguishing it from the spread-spectrum enabled MAX9248.

Serializers, Deserializers Replacement Considerations

The MAX9248 is a functional substitute but lacks the output enable feature and instead offers spread-spectrum capability. The MAX9218 is another alternative but may have different performance characteristics. Verify pinout and electrical specifications before substitution.

Serializers, Deserializers FAQ

How does the MAX9250 handle control data?

Control data is deserialized during the video blanking time and output on the CNTL_OUT pins when DE_OUT is low.

What is the purpose of the OUTEN pin?

The OUTEN pin enables output busing by allowing multiple MAX9250 devices to share the same output lines, acting as a 2:1 mux controller.

Can the MAX9250 be AC-coupled?

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