nRF2401 Nordic VLSI, nRF2401 Datasheet - Page 9

• Manufacturer Part Number: nRF2401
• Description: Single Chip 2.4GHz Radio Transceiver
• Manufacturer: Nordic VLSI

PRODUCT SPECIFICATION
The ShockBurst™ technology uses on-chip FIFO to clock in data at a low data rate
and transmit at a very high rate thus enabling extremely power reduction.
When operating the nRF2401 in ShockBurst™, you gain access to the high data rates
(1 Mbps) offered by the 2.4 GHz band without the need of a costly, high-speed micro
controller (MCU) for data processing.
By putting all high speed signal processing related to RF protocol on-chip, the
nRF2401 offers the following benefits:
The nRF2401 can be programmed using a simple 3-wire interface where the data rate
is decided by the speed of the micro controller.
By allowing the digital part of the application to run at low speed while maximizing
the data rate on the RF link, the nRF ShockBurst™ mode reduces the average current
consumption in applications considerably.
When the nRF2401 is configured in ShockBurst™, TX or RX operation is conducted
in the following way (10 kbps for the example only).
Nordic VLSI ASA
Revision: 1.0
Figure 4 Clocking in data with MCU and sending with ShockBurst technology
0
Highly reduced current consumption
Lower system cost (facilitates use of less expensive micro controller)
Greatly reduced risk of ‘on-air’ collisions due to short transmission time
Figure 5 Current consumption with & without ShockBurst technology
20
-
10mA period
40
Vestre Rosten 81, N-7075 Tiller, Norway
Without ShockBurst
Continuous 10kbps
60
10Kbs MCU with ShockBurst
80
Time mS
TM
, running at speed dictated by 10Kbs MCU
10mA periode
Page 9 of 37
100
120
FIFO
-
140
Phone [phone]
TM
160
ShockBurst
180
-
200
Fax [phone]
TM
March 2003
220
1Mbps
240