Product Introduction:
The wireless voice/audio transmission system CMOS chip based on the 2.4G has the more outstanding characteristic of audio and the smaller cost than others of its kind, and can be applied to the civil middle-level and high-level field about the wireless audio transmission, such as high-level audio mobile, MP3, MP4, multimedia and digital videoconference. It is placed into the international leading position, and has international competitiveness. Now, our products are mainly sold to Europe, Southeast Asia.
1. System characteristics:
■ Multi user work together with close distance
■ FEC improve the fault-tolerant ability
■ The one to multi wireless rules and restriction and broadcast rules and restriction
■ Embedded the DSP or other 32bit high performance CPU
■ USB 2.0
■ Wavpack compression
■ SIE（Serial Interface Engine) is compatible with several RF modules
■ DAI（Digital Audio Interface) is compatible with a majority of Codec in the market
■ Power saving
■ Embedded PLL
■ Low voltage detection
■ Clock synchronization between master and slave
2. System object parameter
■ Transmission mode: one to three ARQ mode, or the broadcast mode and support up to 40 users sharing one audio source synchronously.
■ Transmission ratio: support the different Baud from 1Mbps to 2Mbps, and compatible with several RF modules.
■ Carrier wave frequency: 900MHz, 2,4GHz, 5,8GHz and other waves with free license
■ Application scheme: DVD audio
■ Time redundancy: less than 10ms
■ Compression method: Wavpack compression ratio with no loss is 1.6:1, Wavpack compression ratio with loss is 3.6:1.
■ FEC: RS or BCH.
■ Mode: Stereo or mono or quad
■ The parameter of transmitting audio in the ARQ mode:
SNR: >90DB
THD < 0.02%~0.05% (Total Harmonic Distortion)
Sample ratio: 44.1KHz or 48KHz
Time redundancy: less than 10ms
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