XF-S3011 is a Chinese speech synthesis chip that integrates a complete speech synthesis system into a single processor, and can receive and synthesize any text through the serial port.
The XF‑S3011 is a Chinese voice synthesis chip developed by iFlytek for embedded applications. It integrates a complete TTS system in a single processor and supports UART communication, multiple text encodings and audio output.
The document provides a system block diagram, application examples (car navigation, POS, toys), communication protocol details, command set, peripheral circuits, package information and full electrical characteristics for designers. This manual is written in Chinese.
| Supply voltage (VDD) range | 2.6 V – 5.5 V |
|---|---|
| Maximum supply voltage | 5.5 V |
| Input voltage range (VIN) | 0.5 VDD to VDD+0.5 V |
| Operating temperature | -40 °C to +85 °C |
| Storage temperature | -40 °C to +100 °C |
| Typical operating current (VDD=5 V) | ≤ 20 mA |
| Input high level (VIH) | 0.7 × VDD |
| Input low level (VIL) | 0.3 × VDD |
| Output current (Ior) | ≤ 1.0 mA |
| Absorption current | ≤ 4.0 mA |
| DAC output current | ≤ 3.0 mA |
| UART baud rate | 9600 bps |
| Package type | QFP 44‑pin |
It uses a UART serial interface with a fixed baud rate of 9600 bps.
The chip operates from 2.6 V up to 5.5 V supply voltage.
The chip is offered in a 44‑pin QFP package.
The device can operate up to +85 °C.