AP280

タイトルまたは説明

AP**0 is a low bit rate speech vocoder chip developed by Shenzhen MicroDevice Technology Co. Ltd, which is based on SPEEX standard, and supporting 4 types of encoding bit rate: ***0bps, ***0bps, ***0bps, and ***0bps.

AP**0 has built-in FLASH and RAM and can do real-time speech encoding/decoding with single chip, no need for external storage, which make it simple for user to design their systems.

AP**0 has an internal CODEC with built-in ADC, DAC, analog amplifiers and filters, no need for external CODEC. It can directly connect micphone and earphone(speaker) as a real single chip speech encoding/decoding solution. While, AP**0 also has a standard PCM interface, through which it can connect external CODECs to meet some users requirement.

AP**0 connect to MCU with UART. User can read and write encoded speech data using UART , which is asynchronous and full-duplex.

AP**0 packs in LQFP*8 package and support low power and sleep mode.

AP**0 has a wide range of application:

• Underwater acoustic communication
• Mobile communication
• Satellite communication
• Secret communication
• HF communication
• Embedded speech data storage
• Digital walkie-talkie system
• Network walkie-talkie system