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NRF24L01P-R7 bảng dữ liệu(PDF) 42 Page - Nordic Semiconductor

tên linh kiện NRF24L01P-R7
Giải thích chi tiết về linh kiện  Single Chip 2.4GHz Transceiver
PDF  78 Pages
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nhà sản xuất  NORDIC [Nordic Semiconductor]
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NRF24L01P-R7 bảng dữ liệu(HTML) 42 Page - Nordic Semiconductor

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Revision 1.0
Page 42 of 78
nRF24L01+ Product Specification
7.7
Enhanced ShockBurst™ timing
This section describes the timing sequence of Enhanced ShockBurst™ and how all modes are initiated
and operated. The Enhanced ShockBurst™ timing is controlled through the Data and Control interface.
The nRF24L01+ can be set to static modes or autonomous modes where the internal state machine con-
trols the events. Each autonomous mode/sequence ends with an interrupt at the IRQ pin. All the interrupts
are indicated as IRQ events in the timing diagrams.
Figure 15. Transmitting one packet with NO_ACK on
The following equations calculate various timing measurements:
Table 19. Timing equations
Symbol
Description
Equation
TOA
Time on-air
TACK
Time on-air Ack
TUL
Time Upload
TESB
Time Enhanced Shock-
Burst™ cycle
TESB = TUL + 2 . Tstby2a + TOA + TACK + TIRQ
1 IRQ if No Ack is on.
TIRQ = 8.2µs @ 1Mbps, TIRQ = 6.0µs @ 2Mbps, Tstdby2a = 130us
Standby-I
PLL Lock
TX
PTX IRQ
PTX MODE
UL
PTX CE
PTX SPI
TOA
Tstdby2a
TUL
IRQ:
TX DS
1
Standby-I
TIRQ
>10us
[ ]
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bit
rate
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air
bit
bytes
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bytes
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bytes
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byte
byte
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CRC
payload
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preamble
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9
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8



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