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TI 公司的CC8520 PurePath无线平台,是高性价相对和低功耗的处理方案,最合适用于高质量数字音频的无线传输. CC8520内置了无线音频传输协议,能控制所选择的外接音频设备,赞同两个音频通路,空中资料速率5Mbps,可编输入功率高达+3.5dBm,接手灵敏度-83dBm,音频延迟低到20ms,适用于多种无线电频率标准: ETSI EN 300 328 和EN 300 440 class 2 (欧洲), FCC CFR47 Part 15 (美国)以及ARIB STD-T66 (日本). CC8520重要用在无线高质量数字音频,无线点对点音频链接,无线耳机和无线扬声器.本文引见CC8520重要特性, 使用电路和CC85xxEM参考设计电路图以及资料清单(BOM).2 l0 A$ _. p9 f4 c
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The PurePath&tradeWireless platform is a cost-effective and low-power solution optimized for wireless transmission of high-quality digital audio.- K$ c: C& ?3 `, ]
7 m4 b1 ^5 m& w! C' rThe CC8520 includes a robust built-in wireless audio transmission protocol and can control selected external audio devices. Utilizing numerous coexistence mechanisms allows the CC8520 to avoid interfering with, or being interfered by other 2.4 GHz radio systems. The CC8520, which supports 2 audio channels, is the first device in the PurePath&tradeWireless platform.
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$ Y* u+ Z: U0 ?; c8 mThe CC8520 operates autonomously, and can be used with or without an external MCU. An external host processor can be connected through SPI and control some aspects of its operation. The CC8520 interfaces easily with other TI audio ICs and DSPs (using I2S and DSP/TDM interfaces).
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CC8520重要特性:; V# s, |0 ~- d8 w
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Built-in audio protocol' T8 x/ D5 G8 }5 C, t2 B2 v
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- CD-quality uncompressed audio6 ~7 f1 u: f9 ?5 b
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- Excellent robustness and co-existence through multiple techniques
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- Adaptive Frequency Hopping, u7 s5 H. b% L s
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- Buffering and Retransmission
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- Error Concealment- f$ L. \7 P/ _( r9 s
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- Optional high quality audio compression External system+ K0 g5 K/ N8 m7 d2 l+ H t
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- Seamless connection and control of selected TI audio codecs, DACs/ADCs and digital audio amplifiers using I2S and I2C1 p q1 U& S, [) k
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- HID functions like power control, binding, volume control, audio channel selection can be mapped to I/Os( |# o! z/ `% y
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发表于 2016-4-30 06:45:47
