MAX9248ECM/V+

Serializers, Deserializers Overview

The MAX9248ECM/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 programmable ±4% or ±2% spread-spectrum output for EMI reduction, selectable rising or falling latch edges, and ISO 10605 ±10kV contact discharge ESD protection. It operates on a +3.3V core supply with a separate VCCO supply supporting 1.8V to 3.3V logic levels. Available in a 48-lead LQFP package, it supports industrial temperature ranges of -40°C to +85°C and -40°C to +105°C.

Serializers, Deserializers Feature Summary

• Proprietary decoding provides DC balance and enables AC-coupling for interface isolation.
• Programmable spread-spectrum capability reduces electromagnetic interference (EMI).
• Control data inputs feature single-bit-error tolerance using majority voting.
• Staggered output switching minimizes ground bounce and EMI.

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 the exact temperature range and packaging specifications. Confirm RoHS compliance status and check for end-of-life notices prior to procurement. Ensure the ordering information matches the manufacturer's current datasheet revision.

Serializers, Deserializers Selection Notes

Select this component when a 27-bit LVDS deserializer with spread-spectrum capabilities is required. Ensure the application frequency falls within the 5MHz to 42MHz range. Verify that the target logic voltage levels are compatible with the separate VCCO supply. Consider the MAX9250 if busing is needed instead of spread spectrum.

Serializers, Deserializers Part Context

This part belongs to the MAX9248/MAX9250 family of digital video serial-to-parallel converters. It pairs with the MAX9247 serializer to form a complete transmission system. The ECM variant specifies the industrial temperature range and LQFP package type. It is designed for robust automotive and industrial video applications.

Serializers, Deserializers Replacement Considerations

The MAX9248GCM is a similar device with a wider commercial/industrial temperature range up to +105°C. The MAX9250 offers output enable busing but lacks spread-spectrum functionality. Verify pin compatibility and electrical characteristics before substitution.

Serializers, Deserializers FAQ

How does the MAX9248 handle control data?

Control data is deserialized during the video blanking time. Inputs C0 to C4 use majority voting for single-bit-error tolerance, while C5 to C8 do not.

What is the function of the SS input?

The SS input controls the spread-spectrum output. Driving it high selects ±4% spread, while pulling it low selects ±2% spread relative to the reference clock.

How is the latch edge selected?

The R/F input selects the latch edge. A high level selects the rising edge of PCLK_OUT, and a low level selects the falling edge.