nRF24LE1 Nordic VLSI, nRF24LE1 Datasheet - Page 22

• Manufacturer Part Number: nRF24LE1
• Manufacturer: Nordic VLSI

nRF24LE1 Preliminary Product Specification
The PA control is set by the RF_PWR bits in the RF_SETUP register.
Conditions: VDD = 3.0V, VSS = 0V, T
3.3.6
The RX/TX control is set by PRIM_RX bit in the CONFIG register and sets the RF Transceiver in transmit/
receive.
3.4
Enhanced ShockBurst™ is a packet based data link layer that features automatic packet assembly and
timing, automatic acknowledgement and retransmissions of packets. Enhanced ShockBurst™ enables the
implementation of ultra low power and high performance communication. The Enhanced ShockBurst™
features enable significant improvements of power efficiency for bi-directional and uni-directional systems,
without adding complexity on the host controller side.
3.4.1
The main features of Enhanced ShockBurst™ are:
3.4.2
Enhanced ShockBurst™ uses ShockBurst™ for automatic packet handling and timing. During transmit,
ShockBurst™ assembles the packet and clocks the bits in the data packet for transmission. During
receive, ShockBurst™ constantly searches for a valid address in the demodulated signal. When Shock-
Burst™ finds a valid address, it processes the rest of the packet and validates it by CRC. If the packet is
valid the payload is moved into a vacant slot in the RX FIFOs. All high speed bit handling and timing is con-
trolled by ShockBurst™.
Enhanced ShockBurst™ features automatic packet transaction handling for the easy implementation of a
reliable bi-directional data link. An Enhanced ShockBurst™ packet transaction is a packet exchange
between two transceivers, with one transceiver acting as the Primary Receiver (PRX) and the other trans-
ceiver acting as the Primary Transmitter (PTX). An Enhanced ShockBurst™ packet transaction is always
initiated by a packet transmission from the PTX, the transaction is complete when the PTX has received an
Revision 1.1
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•
•
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1 to 32 bytes dynamic payload length
Automatic packet handling
Auto packet transaction handling
6 data pipe MultiCeiver™ for 1:6 star networks
Enhanced ShockBurst™
RX/TX control
Features
Enhanced ShockBurst™ overview
Auto Acknowledgement
Auto retransmit
SPI RF-SETUP
(RF_PWR)
Table 5. RF output power setting for the RF Transceiver
10
01
00
11
A
= 27ºC, Load impedance = 15Ω+j88Ω.
RF output power
-12dBm
-18dBm
-6dBm
0dBm
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consumption
DC current
11.1mA
8.8mA
6.8mA
7.3