NRF2402G Nordic VLSI, NRF2402G Datasheet - Page 12

• Manufacturer Part Number: NRF2402G
• Manufacturer: Nordic VLSI

PRODUCT SPECIFICATION
nRF2402 Single Chip 2.4 GHz Radio Transmitter
Direct Mode
In direct mode the nRF2402 works like a traditional RF device. The data rate must be
1Mbps ±200ppm, or 250kbps ±200ppm at low data rate setting, for the receiver
(nRF2401A/nRF24E1) to detect the signals.
MCU interface pins: CE, DIN
Configuration Mode
In configuration mode a configuration word of up to 20 bits is downloaded to
nRF2402. This is done through a simple 3-wire interface (CS, CLK and DIN). For
more information on configuration please refer to the nRF2402 device configuration
chapter, page13.
Power Down Mode
Power down mode is used to achieve very low current consumption. Effectively the
chip is disabled with minimal leakage current consumption, typically less than 200nA.
Operating in this mode when not transmitting data significantly increases battery
lifetime.
Stand-By Mode
Stand by mode is used to achieve low current consumption. In this mode only a part
of the crystal oscillator is running (12 A) to guarantee a short start-up time. Operating
in this mode when not transmitting data increases battery lifetime while keeping start
up delays short.
Pin configuration for the different modes of nRF2402
Nordic Semiconductor ASA
Revision: 2.1
CLK not used in direct mode.
Power down
Stand by
Configuration
TX ShockBurst™
TX Direct
nRF2402 MODES
1. When application MCU has data to send, set CE high
2. The nRF2402 RF front end is now immediately activated, and after 200 s
3. All RF protocol parts must hence be implemented in MCU firmware
Pin Name
settling time, signal on the DIN pin will modulate the carrier directly.
(preamble, address and CRC).
-
Vestre Rosten 81, N-7075 Tiller, Norway
Table 7 Pin configuration of nRF2402.
PWR_UP
0
1
1
1
1
CE
Page 12 of 32
0
0
0
1
1
INPUT PINS
CS
X
0
1
0
0
-
Phone [phone]
Set to 0
CLK
CLK
CLK
X
X
CONFIG DATA
- Fax [phone]
TX DATA
TX DATA
DIN
X
X
March 2006