This document introduces audio accessory integrated circuits (ICs) for mobile devices, including mixer and selector ICs with a 16-bit digital-to-analog converter (DAC). These ICs are designed for higher sound quality and miniaturization of cell phones with music playback. The BU7893GU also features a 3D surround enhancement function, allowing for wide-spreading stereo sound from nearby stereo speakers.
The BU7893GU is a 16‑bit stereo audio D/A converter IC designed for high‑quality sound in mobile devices such as cellular phones and PDAs. It includes a 3D surround enhancement function and a stereo headphone amplifier.
Key features include a built‑in 16‑bit D/A converter, stereo analogue interface, low‑band correction in the headphone amp, adjustable gain, and flexible mixing functions. The device is supplied in a VCSP85H3 package and operates from a 2.6‑3.3 V supply.
| Audio D/A Converter Resolution | 16‑bit |
|---|---|
| Package | VCSP85H3 |
| AVDD Supply Voltage (typ) | 2.8 V |
The analog supply voltage (AVDD) ranges from 2.6 V to 3.3 V, with a typical value of 2.8 V.
The BU7893GU is supplied in a VCSP85H3 package.
Typical applications are portable information and communication equipment such as cellular phones and PDAs.