Cypress Semiconductor CY8C24794 Manuel d'utilisateur

CYRF79362.4-GHz CyFi™ TransceiverCypress Semiconductor Corporation • 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600Document Number: 001-

CYRF7936Document Number: 001-48013 Rev *E Page 10 of 22Table 4. Recommended BoM for Systems where VBAT ≤ 2.4 VItem Qty CY Part Number Reference Des

CYRF7936Document Number: 001-48013 Rev *E Page 11 of 22Figure 9. Recommended Circuit for Systems where VBAT is 2.4 V to 3.6 V (PMU Disabled) Power

CYRF7936Document Number: 001-48013 Rev *E Page 12 of 22Table 5. Recommended BoM for Systems where VBAT is 2.4V - 3.6V (PMU disabled)Item Qty CY Part

CYRF7936Document Number: 001-48013 Rev *E Page 13 of 22Absolute Maximum RatingsExceeding maximum ratings may shorten the useful life of thedevice. U

CYRF7936Document Number: 001-48013 Rev *E Page 14 of 22Figure 10. SPI TimingAC CharacteristicsTable 6. SPI Interface[16, 17]Parameter Description

CYRF7936Document Number: 001-48013 Rev *E Page 15 of 22RF CharacteristicsNotes19. Subject to regulation.20. Exceptions F/3 and 5C/3.Table 7. Radio

CYRF7936Document Number: 001-48013 Rev *E Page 16 of 22Nonharmonically related spurs (800 MHz) – –38 – dBmNonharmonically related spurs (1.6 GHz) –

CYRF7936Document Number: 001-48013 Rev *E Page 17 of 22Typical Operating CharacteristicsThe typical operating characteristics of CYRF7936 follow[21]

CYRF7936Document Number: 001-48013 Rev *E Page 18 of 22Typical Operating Characteristics (continued) GFSK vs. BER(SOP Threshold = 5, C38 slow)0.0000

CYRF7936Document Number: 001-48013 Rev *E Page 19 of 22Typical Operating Characteristics (continued)Figure 11. AC Test Loads and Waveforms for Digi

CYRF7936Document Number: 001-48013 Rev *E Page 2 of 22ContentsFeatures ...

CYRF7936Document Number: 001-48013 Rev *E Page 20 of 22Package DescriptionThe recommended dimension of the PCB pad size for the E-pad underneath the

CYRF7936Document Number: 001-48013 Rev *E Page 21 of 22Document ConventionsAcronyms Units of MeasureTable 9 lists the unit sof measures.Table 8. Ac

Document Number: 001-48013 Rev *E Revised September 21, 2010 Page 22 of 22CyFi, WirelessUSB, PSoC, and enCoRe are trademarks of Cypress Semiconductor

CYRF7936Document Number: 001-48013 Rev *E Page 3 of 22PinoutsFigure 1. Pin Diagram - CYRF7936 40-Pin QFN RFBIASNCNCVBAT2VCCVBAT1XTALVCCNCNCVREGNCNC

CYRF7936Document Number: 001-48013 Rev *E Page 4 of 22Functional OverviewThe CYRF7936 IC is designed to implement wireless devicelinks operating in

CYRF7936Document Number: 001-48013 Rev *E Page 5 of 22Figure 2. Example Packet FormatFigure 3. Example ACK Packet FormatPacket BuffersAll data tra

CYRF7936Document Number: 001-48013 Rev *E Page 6 of 22Functional Block Overview2.4-GHz CyFi Radio ModemThe CyFi radio modem is a dual conversion low

CYRF7936Document Number: 001-48013 Rev *E Page 7 of 22Figure 4. SPI Single Read SequenceFigure 5. SPI Incrementing Burst Read SequenceFigure 6. S

CYRF7936Document Number: 001-48013 Rev *E Page 8 of 22InterruptsThe device provides an interrupt (IRQ) output, which isconfigurable to indicate the

CYRF7936Document Number: 001-48013 Rev *E Page 9 of 22Application ExamplesFigure 8. Recommended Circuit for Systems where VBAT ≤ 2.4 VCYRF7936[+] F