NRF2402 Datasheet, PDF (22/31 Pages) List of Unclassifed Manufacturers – Single chip 2.4 GHz Transmitter

PRODUCT SPECIFICATION
nRF2402/nRF2402G Single Chip 2.4 GHz Radio Transmitter
Direct Mode Timing
t=0
PWR_UP
CS
CE
CLK
DIN
ANT1/ANT2
Td Tsby2txDM
ToaDM
Tfd
Figure 14 Timing Diagram of Direct Mode
In direct mode the input data will be sampled by nRF2402/nRF2402G and therefore no clock
is needed. The clock must be stable at low level during transmission due to noise
considerations. The exact delay T_sby2txDM is given by the equation:
T_sby2txDM = 194us + 1 / F_XO ⋅ 20 + 2.25us
The maximum length of a package (ToaDM) over all voltages and temperatures is 4ms. This
is limited by frequency drift in the transmitter and is independent of data rate and frequency
channel.
Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway - Phone [phone] - Fax [phone]
Revision: 2.0
Page 22 of 31
April 2005