Key facts
- Brand
- IFLYTEK
- Model
- XF‑S3111
- Category
- Other Electronics
- Industry
- Electronics
- Documents
- 2
- Languages
- ZH
- Last added
- 2000-01-01
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iFlytek XF‑S3111 Voice Synthesis Chip Datasheet
The XF‑S3111 is a Chinese voice synthesis chip from iFlytek, designed for low‑cost embedded speech applications. It receives text via an asynchronous serial interface and outputs synthesized speech through a 10‑bit DAC, supporting multiple text encodings and custom synthesis modes.
The document includes a system block diagram, a complete pin‑out table, electrical limits, serial communication protocol (9600 bps), signal timing diagrams, and extensive examples of text formatting for numbers, dates, and custom prompts. This manual is written in Chinese.
IFLYTEK XF‑S3111 specifications
| Supply voltage | 2.7 V ~ 3.6 V |
|---|---|
| Serial baud rate | 9600 bps |
| Audio output resolution | 10‑bit DAC |
| VDD pin voltage | 3.3 V |
All IFLYTEK XF‑S3111 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the communication baud rate of the XF‑S3111?
The chip uses a serial communication baud rate of 9600 bps.
What supply voltage range does the XF‑S3111 operate at?
It operates from 2.7 V to 3.6 V.
What communication interface does the XF-S3111-FSD use?
It uses a UART serial interface with a baud rate of 9600 bps.
How is the chip reset?
The reset pin is active low; the typical reset pulse is 10 ms and the chip must wait about 50 ms after release before accepting commands.