M65849CFP#DF0G

Audio Special Purpose Overview

The Renesas M65849CFP is a single-chip CMOS surround sound processor designed for consumer audio applications. It integrates digital circuits, mixing amplifiers, and an ADM digital delay with 16kbit SRAM to create a complete surround system on one chip. The device supports Dolby Surround decoding and offers selectable delay times ranging from 9.2 msec to 196.6 msec in eight steps. It operates on a single 5V power supply (4.5V to 5.5V) and includes built-in automatic reset circuitry activated upon power-on. The component is housed in a 36-SSOP package.

Audio Special Purpose Feature Summary

• Integrated ADM digital delay with 16kbit SRAM
• Built-in mixing amplifiers and input/output selector
• Eight-step selectable delay time (9.2msec to 196.6msec)
• Single 5V power supply operation with automatic reset

Audio Special Purpose Applications

• Mini Stereo systems
• CD-Radio Cassette players
• Televisions requiring Dolby Surround effects

Audio Special Purpose Procurement Notes

Verify the specific suffix DF0G against official Renesas documentation to confirm if it denotes a distinct tape-and-reel variant or packaging change, as local data indicates bulk packaging. Ensure the 36-SSOP footprint matches the target PCB design. Confirm RoHS compliance status for the specific manufacturing batch prior to integration.

Audio Special Purpose Selection Notes

Select this component for designs requiring a low-cost, single-chip solution for adding stereo surround effects. It is suitable for embedded audio processing where external DSPs are unnecessary. Verify that the required delay range fits within the 9.2msec to 196.6msec specification and that the 36-pin SSOP package accommodates the board space constraints.

Audio Special Purpose Part Context

The M65849CFP belongs to the family of single-chip surround processors originally developed by Mitsubishi Electric Semiconductors and later manufactured by Renesas Technology Corp. It serves as a specialized audio signal processor for legacy and modern consumer electronics, providing hardware-based echo and surround effects without complex software implementation.

Audio Special Purpose Replacement Considerations

The M65849BFP is a documented similar part number within the same product family. Other alternatives include the YM7128B from Yamaha Corporation or the PT2398 from Princeton Technology Co, though pinouts and specific feature sets may differ.