BU8793KN-E2

Overview

The BU8793KN-E2 is a silicon monolithic integrated circuit designed as a sound generator for cellular phones. It features a 16-harmony generator capable of simultaneous output and supports the generation of 128 sounds plus a drum set with 47 sounds. The device operates within a power supply voltage range of 2.7 V to 3.6 V and an ambient temperature range of -40°C to +85°C. It utilizes a VQFN-EP-28 package for surface mount installation. Key electrical characteristics include a maximum MCLK input frequency of 18 MHz, typical analog current consumption of 1.3 mA during playback at 3V, and standby mode current consumption below 1 μA.

Feature Summary

• Integrated 16-harmony generator allowing simultaneous tone synthesis
• Supports extensive sound library including 128 general sounds and 47 drum set sounds
• Low power consumption design suitable for battery-operated mobile devices
• Digital and analog power supplies operate at the same potential level

Applications

• Cellular phone audio systems
• Mobile communication devices requiring multi-tone generation
• Portable electronic equipment utilizing sound effects

Procurement Notes

Verify component authenticity through authorized ROHM Semiconductor channels or certified distributors. Confirm the specific E2 suffix indicates environmental compliance status per official documentation. Check for moisture sensitivity handling requirements due to the VQFN package type. Ensure supply chain sources provide valid traceability data for quality assurance purposes.

Selection Notes

Select this component when designing audio subsystems for mobile telephony that require integrated harmony generation. Ensure the system architecture supports the required 12.5 MHz to 18 MHz master clock input. Verify that the PCB layout accommodates the VQFN-EP-28 footprint and provides adequate thermal dissipation given the 370 mW allowable dissipation limit. Confirm compatibility with the 2.7 V to 3.6 V operating voltage range.

Part Context

The BU8793KN-E2 belongs to the BU8793KN series of telecom interface ICs manufactured by ROHM Semiconductor. This series is specifically engineered for audio signal processing in portable communication hardware. The part integrates both digital control logic and analog output stages into a single monolithic structure to minimize board space and simplify circuit design for mobile manufacturers.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult ROHM Semiconductor directly for legacy replacement options or updated product line recommendations.