WirelessUSB™ NL 2.4 GHz Low Power Radio
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Fully integrated 2.4-GHz radio on a chip
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1-Mbps over-the-air data rate
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Transmit power typical: 0 dBm
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Receive sensitivity typical: -87 dBm
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Below 1 uA typical current consumption in sleep state
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Closed-loop frequency synthesis
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Supports frequency-hopping spread spectrum
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On-chip packet framer with 64-byte first in first out (FIFO) data buffer
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Built-in auto-retry-acknowledge protocol simplifies usage
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Built-in cyclic redundancy check (CRC), forward error correction (FEC), data whitening
WirelessUSB™ NL, optimized to operate in the 2.4-GHz ISM band, is Cypress's third generation of 2.4-GHz low-power RF technology, bringing the next level of low-power performance into a small 4-mm × 4-mm footprint. WirelessUSB NL implements a Gaussian frequency-shift keying (GFSK) radio using a differentiated single-mixer, closed-loop modulation design that optimizes power efficiency and interference immunity. Closed-loop modulation effectively eliminates the problem of frequency drift, enabling WirelessUSB NL to transmit up to 255-byte payloads without repeatedly having to pay power penalties for re-locking the phase locked loop (PLL) as in open-loop designs.
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