English
Language : 

NRF2401A Datasheet, PDF (24/38 Pages) List of Unclassifed Manufacturers – Single chip 2.4 GHz Transceiver
PRODUCT SPECIFICATION
nRF2401A Single Chip 2.4 GHz Radio Transceiver
IMPORTANT TIMING DATA
The following timing applies for operation of nRF2401A.
nRF2401A Timing Information
nRF2401A timing
PWR_DWN Î Configuration mode
PWR_DWNÎ Active mode (RX/TX)
ST_BY Î TX ShockBurst™
ST_BY Î TX Direct Mode
ST_BY Î RX mode
Minimum delay from CS to data.
Minimum delay from CE to data.
Minimum delay from DR1/2 to clk.
Maximum delay from clk to data.
Delay between edges
Setup time
Hold time
Delay to finish internal GFSK data
Minimum input clock high
Set-up of data in Direct Mode
Minimum clock high in Direct Mode
Minimum clock low in Direct Mode
Time on air, TX Direct mode
Max.
3ms
3ms
195µs
202µs
202µs
50ns
50ns
4ms
Min.
5µs
5µs
50ns
50ns
500ns
500ns
1/data rate
500ns
300ns
230ns
Name
Tpd2cfgm
Tpd2a
Tsby2txSB
Tsby2txDM
Tsby2rx
Tcs2data
Tce2data
Tdr2clk
Tclk2data
Td
Ts
Th
Tfd
Thmin
Tsdm
Thdm
Tldm
ToaDM
Table 19 Operational timing of nRF2401A
When the nRF2401A is in power down it must always settle in stand by for 3ms
before it can enter configuration or one of the active modes.
PWR_UP
CS
CE
CLK1
DATA
Tpd2cfgm
Figure 12 Timing diagram for power down (or VDD off) to configuration mode
for nRF2401A.
Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway - Phone +4772898900 - Fax +4772898989
Revision: 1.0
Page 24 of 38
December 2004