Cx31993 Datasheet Today

is a high-performance, low-power USB Type-C digital-to-analog converter (DAC) chip frequently used in high-fidelity (Hi-Fi) audio dongles and expansion cards. It is designed to provide high-resolution audio decoding for mobile devices and computers that lack a dedicated 3.5mm headphone jack. Framework Community Core Specifications Any link to the cx31993 datasheet?

Note: The full public datasheet for CX31993 is proprietary and not freely available. This guide is based on publicly disclosed specifications, application notes, and reverse-engineering from known products (e.g., Conexant/CX-Audio dongles). For register-level details, you must sign an NDA with the manufacturer. cx31993 datasheet

7. Typical Applications

• USB-C to 3.5 mm headphone adapters (dongles)
• USB-C wired headsets (gaming and music)
• Portable DAC/amplifier dongles with microphone pass-through
• Embedded audio for laptops, tablets, and monitors

Product overview

• Part: CX31993
• Device class: Single-chip, high-performance NTSC/PAL analog video decoder (composite/S-Video/YC and CVBS), with integrated ADCs and video processing.
• Typical application: Set-top boxes, DVD players, DVRs, video capture cards, CCTV front-ends, multimedia appliances needing analog video input and digitization.

4. Register Map (If available under NDA)

The chip is controlled via I2C. Typical registers include: USB-C to 3

| Address | Function | Example value | |---------|----------|----------------| | 0x00 | Chip reset | 0x01 (soft reset) | | 0x01 | Volume control L | 0x00 – 0x3F | | 0x02 | Volume control R | 0x00 – 0x3F | | 0x03 | Mute / unmute | bit0=1 mute | | 0x04 | Sample rate selection | 0x00=48k, 0x02=96k | | 0x05 | Headphone detection status | read-only bit | | 0x06 | Mixer / sidetone control | for mic monitoring | you cannot change advanced settings (e.g.

Without the full datasheet, you cannot change advanced settings (e.g., digital filter roll-off, de-emphasis).