MAX4397SACTM+

Audio Special Purpose Overview

The MAX4397SACTM+ is a dual SCART switch matrix designed for routing audio and video signals between an MPEG encoder and two external SCART connectors under I2C control. It meets EN50049-1, IEC 933-1, Canal+, and BSkyB standards. The device features AC-coupled single-ended audio encoder inputs, programmable RGB gain (+5dB to +7dB), and internal Y/C mixing for composite video generation. It operates on standard 5V and 12V supplies with a 48-pin Thin QFN package.

Audio Special Purpose Feature Summary

• Dual SCART connector support with bidirectional Red/Chroma switching
• I2C-programmable volume control (-56dB to +6dB) and clickless switching
• Internal Luma/Chroma mixer for RF modulator output generation
• Video outputs drive 2VP-P into 150Ω; Audio outputs drive 3VRMS into 10kΩ

Audio Special Purpose Applications

• Satellite Set-Top Boxes
• Cable Set-Top Boxes
• Televisions
• VCRs
• DVD Players

Audio Special Purpose Procurement Notes

Verify the specific suffix 'SA' indicates single-ended audio encoder inputs, distinct from the differential 'DA' variant. Confirm the package type matches the 48-TQFN (7x7mm) exposed pad requirement. Check RoHS compliance status as indicated by the '+' suffix in ordering information.

Audio Special Purpose Selection Notes

Select this component when designing systems requiring compliance with European SCART standards like EN50049-1. Ensure the design accommodates both 5V and 12V power rails. Verify that the single-ended audio input configuration aligns with the source encoder's output type.

Audio Special Purpose Part Context

This part belongs to the MAX4397 family of audio/video switches. The 'S' suffix denotes the single-ended audio encoder input version, whereas 'DA' indicates a differential input. Both variants share identical video switching capabilities and pinouts.

Audio Special Purpose Replacement Considerations

The MAX4397DACTM is the primary alternative within the same series, differing only in the audio encoder input interface (differential vs. single-ended). No other cross-model substitutes are documented.