Weichuang Electronics WT588D Application Note

This document is the application note for WT588D, including chip and module part, WT588D VoiceChip part and download notice

Brand: Guangzhou唯创电子
Category: Other Electronics
Document type: Application Note
Language: Chinese
Pages: 2
File format: PDF
File size: 199 KB
Published: 21 March, 2012
Updated: 30 September, 2023
MD5 checksum: CEDA9F7FD5D3613690650D9EA85F57C7
PDF: Weichuang Electronics WT588D Application Note PDF

About this manual

The document provides practical guidelines for integrating the WT588D chip or module into hardware designs. It covers power‑supply voltage limits, proper pin wiring, PWM output handling, and the relationship between oscillation resistor values and audio sampling rates.

It also describes the supported audio sampling rates in the PC software, conversion requirements for unsupported rates, and special considerations for ISP online downloading, including reset pin handling during programming. This manual is written in Chinese.

What's inside

Chip and module voltage requirements
Pin connections and SIM line
PWM output restrictions
Audio sampling rate and oscillation resistor relationship
PC software supported sampling rates
Download (ISP) precautions

Specifications

VCC input voltage range	DC2.8 V – DC3.5 V
Supported audio sampling rates	6000, 8000, 10000, 12000, 14000, 16000, 18000, 20000, 22000 Hz
Oscillation resistor for 6 kHz sampling	275 kΩ
Oscillation resistor for 22 kHz sampling	300 kΩ

Frequently asked questions

Which audio sampling rates can be loaded by the WT588D PC software?

The software supports 6000 Hz, 8000 Hz, 10000 Hz, 12000 Hz, 14000 Hz, 16000 Hz, 18000 Hz, 20000 Hz and 22000 Hz audio files.

Can the PWM+ / PWM‑ pins be directly grounded?

No. The PWM+/PWM‑ pins must not be directly connected to ground, a capacitor, a resistor, or shorted together, as this can cause audio distortion or damage the chip.

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