器件名称: CYRF9935
功能描述: 终端用户需要无线HID设备具有更长的电池寿命，因而使低功耗射频成为必备技术。WirelessUSB NX在睡眠状态下的功耗仅为900 nA，而HID设备大多数时间里都处于睡眠状态。与赛普拉斯WirelessUSB系列中的其他产品一样，NX在存在2.4-GHz公共频段的干扰时（例如WiFi、蓝牙、无绳电话和微波炉）仍具有卓越的射频性能。
文件大小: 578.5KB 共46页
简 介:CYRF9935
WirelessUSB NX 2.4 GHz Low Power Radio
WirelessUSB NX 2.4 GHz Low Power Radio
Key Features
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RF channel – 126 (2400 MHz~2525 MHz) Programmable Data Rate – 2 Mbps/250 Kbps Power Supply Range – 1.9 V to 3.6 V Ultra low power operation TX Current 12 mA at 0 dBm output power RX Current 15 mA at 2 Mbps data rate RX Current 14 mA at 250 Kbps data rate Idle current 26 A (Idle-I mode) Sleep current 900 nA Programmable TX Output Power: +4 dBm 0 dBm –8 dBm –14 dBm –20 dBm Sensitivity (0.1%BER): –93 dBm at 250 kbps –82 dBm at 2 Mbps Digital RSSI Programmable Payload length – 1 to 32 bytes
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Programmable Multi-Level FIFO 3 Levels of 32 bytes each 6 Levels of 16 bytes each Automatic Packet Acknowledgement Automatic Packet Resend 8/16 bit hardware CRC Up to 8 Pipes for 1:8 Star Network 4-pin Hardware SPI Interface ±60 ppm 16 MHz crystal Compact 24-pin 4 × 4 mm QFN package
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Applications
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Wireless mouse, keyboard, gamepad and presenter Wireless audio and VoRF Remote controller Home automation Wireless sensor network Radio Controlled (R/C) Toy
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Block Diagram
Baseband TX FIFO
SPI_nSS SCK MISO MOSI IRQ MODE
Transmitter GFSK Modulator
X
PA
ANT1 ANT2
SPI Baseband Engine (Framer) Register Map Receiver GFSK Demodulator
X
LNA
RX FIFO Power Management
VDD_PA VDD_LDO GND VIN
Frequency Synthesizer
XIN XOUT
Cypress Semiconductor Corporation Document Number: 001-88748 Rev. *C
198 Champion Court
San Jose, CA 95134-1709……
