PRODUCT SPECIFICATION
Single chip 2.4 GHz Transceiver
with Embedded ANT protocol
FEATURES
•
•
•
•
•
•
•
•
•
•
•
Integrated PAN (Personal Area
Network)
Drop in wireless networking with
simple serial interface
2.4GHz Worldwide ISM Band
Ultra-low power (coin cell battery)
Fully scaleable
Broadcast, Acknowledged or Burst
Data
Message rates 0.5Hz -> 200Hz
(8byte data payload)
Burst transfer rates up to 20kbps
(true data throughput)
Public and private networks
1 Mbps RF data rate
125 RF channels
•
•
•
•
nRF24AP1
Sensor Networks
Industrial Automation
Home Automation
Sports Monitoring
APPLICATIONS
Simple Networks
Complex
Networks
Independent Networks
Broadcast
Networks
Shared Channel
Networks
GENERAL DESCRIPTION
ANT by Dynastream
© 2005 all rights reserved
The nRF24AP1 is an ultra-low power single-chip radio transceiver with embedded ANT
protocol for personal area networks. The transceiver’s RF operating frequency range falls
within the world-wide 2.4 - 2.5 GHz RF ISM band, allowing for regulatory compliance
and product sales into global markets.
QUICK REFERENCE DATA
Parameter
Minimum supply voltage
Maximum output power
Maximum data rate (over the air)
Temperature range
Sensitivity
Average current consumption as low as
Peak current consumption TX @-5dBm
Peak current consumption RX
Max # of simultaneous connections
1
Max # of simultaneous independent 2-way connections
Maximum sustained transfer rate (all data – no overhead)
2
CR2032 Battery life in a typical sensor application
3
Value
1.9
0
1000
-40 to +85
-80
30
13.5mA for 350us
22mA for 600us
>65000
4
20
5
Unit
V
dBm
kbps
°C
dBm
µA
mA
mA
connections
2-way connections
kbps
years
Table 1: nRF24AP1 quick reference data
1
2
Using Shared Channel Network
Transfer rate refers to data rate of the end application’s message payload
3
Message interval of 2s, 1 hour/day usage
Nordic Semiconductor ASA
Revision: 1.0
- Vestre Rosten 81, N-7075 Tiller, Norway
-
Phone +4772898900
-
Fax +4772898989
September 2006
Page 1 of 25
PRODUCT SPECIFICATION
nRF24AP1 Single Chip 2.4 GHz Radio Transceiver with Embedded ANT Protocol
The transceiver consists of the ANT fully integrated protocol engine, frequency
synthesizer, power amplifier, crystal oscillator and modulator, and can be interfaced to a
host micro controller over either a synchronous or asynchronous serial interface.
Designed to run on a wrist-watch coin cell battery, current consumption of the device is
extremely low - a typical sensor application can operate on approximately 30µA average
current consumption. Short, low peak current transitions are battery friendly.
The embedded ANT protocol makes for easy, low cost integration. Eliminating the need
for 3
rd
party RF protocol implementation, the on-chip ANT protocol combined with the
2.4GHz transceiver enables system and application developers to interact with the
nRF24AP1 as a black box wireless solution. The simple serial interface (asynchronous or
synchronous) to the device allows for flexibility and scalability from ultra-low power
sensors (30µA) through to higher data rate (20kbps) applications implemented in a
multitude of network configurations. Networks can be scaled from as little as two nodes
to thousands. With 2
32
unique IDs, multiple radio frequencies, public and private network
management and scalable data rates, an unlimited number of network configurations and
applications are possible.
Prior to reading this document, the “ANT Message Protocol and Usage” document should
be read to gain understanding of the ANT protocol capabilities.
REFERENCES
Ref. No.
1
2
Doc. No.
D00000794
D00000652
Revision
1.0
1.36
Title
Interfacing with ANT General Purpose Chipset and Modules
(Part of nRF24AP1 Specification)
ANT Message Protocol and Usage
Table 2 nRF24AP1 referenced documents
For more information see: www.nordicsemi.no
Nordic Semiconductor ASA
Revision: 1.0
- Vestre Rosten 81, N-7075 Tiller, Norway
-
Phone +4772898900
-
Page 2 of 25
Fax +4772898989
September 2006
PRODUCT SPECIFICATION
nRF24AP1 Single Chip 2.4 GHz Radio Transceiver with Embedded ANT Protocol
TABLE OF CONTENTS
FEATURES.....................................................................................................................................................1
APPLICATIONS.............................................................................................................................................1
GENERAL DESCRIPTION............................................................................................................................1
QUICK REFERENCE DATA.........................................................................................................................1
REFERENCES ................................................................................................................................................2
TABLE OF CONTENTS ................................................................................................................................3
1. BLOCK DIAGRAM................................................................................................................................4
2. PIN FUNCTIONS ...................................................................................................................................5
3. PIN ASSIGNMENT ................................................................................................................................5
4. ELECTRICAL SPECIFICATIONS ........................................................................................................6
5. PACKAGE OUTLINE ............................................................................................................................7
5.1 Package marking: ..............................................................................................................................9
6. ORDERING INFORMATION................................................................................................................9
7. ABSOLUTE MAXIMUM RATINGS...................................................................................................10
8. ARCHITECTURAL OVERVIEW........................................................................................................12
9. ANT INTERFACE ................................................................................................................................13
9.1 Physical Layer – Serial Interfacing .................................................................................................13
9.2 ANT Message Summary .................................................................................................................13
9.3 32kHz Clock Signal (EXT32K) ......................................................................................................13
9.4 Message Summary ..........................................................................................................................14
10.
APPLICATION SPECIFIC CURRENT CONSUMPTION............................................................15
11.
PERIPHERAL RF INFORMATION ..............................................................................................16
11.1
Antenna output ...........................................................................................................................16
11.2
Output Power adjustment ...........................................................................................................16
11.3
Crystal Specification...................................................................................................................16
11.4
Sharing crystal with micro controller .........................................................................................17
11.5
Crystal parameters: .....................................................................................................................17
11.6
Input crystal amplitude & Current consumption ........................................................................17
11.7
PCB layout and de-coupling guidelines......................................................................................18
11.8
Reflow information ....................................................................................................................19
12.
APPLICATION EXAMPLE...........................................................................................................20
12.1
nRF24AP1 with single ended matching network .......................................................................20
12.2
PCB layout example ...................................................................................................................22
13.
DEFINITIONS ................................................................................................................................23
13.1
Nordic Semiconductor ASA – World Wide Distributors ...........................................................25
Nordic Semiconductor ASA
Revision: 1.0
- Vestre Rosten 81, N-7075 Tiller, Norway
-
Phone +4772898900
-
Page 3 of 25
Fax +4772898989
September 2006
PRODUCT SPECIFICATION
nRF24AP1 Single Chip 2.4 GHz Radio Transceiver with Embedded ANT Protocol
1.
BLOCK DIAGRAM
VDD=3V
VDD=3V
VDD=3V
VSS=0V
VSS=0V
VSS=0V
VSS=0V
DVDD
XC1
EXT32K
PORTSEL
BR2 / SCLK
BR1 / SFLOW
SUSPEND / SRDY
SLEEP / SMSGRDY
RTS / SEN
RXD / SIN
TXD / SOUT
UART
or
Synchronous
Serial
Interface
VSS_PA=0V
VDD_PA=1.8V
Timing
XC2
ANT1
ANT
Protocol
Engine
1 Mbps
RF
Transceiver
100Ω+j175Ω
ANT2
IREF
22kΩ
Figure 1: nRF24AP1 with external components.
The “ANT Protocol Engine” shown in Figure 1 is described in the “ANT Message
Protocol and Usage” document.
Nordic Semiconductor ASA
Revision: 1.0
- Vestre Rosten 81, N-7075 Tiller, Norway
-
Phone +4772898900
-
Page 4 of 25
Fax +4772898989
September 2006
PRODUCT SPECIFICATION
nRF24AP1 Single Chip 2.4 GHz Radio Transceiver with Embedded ANT Protocol
2.
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
PIN FUNCTIONS
Name
BR2 / SCLK
BR1 / SFLOW
EXT32K
RXD / SIN
TXD / SOUT
SLEEP / SMSGRDY
SUSPEND / SRDY
RTS / SEN
DVDD
VSS
XC2
XC1
VDD_PA
ANT1
ANT2
VSS_PA
VDD
VSS
IREF
VSS
VDD
VSS
PORTSEL
VDD
Pin function
Digital IO
Digital Input
Digital Input
Digital Input
Digital Output
Digital Input
Digital Input
Digital Output
Power Output
Power
Analog Output
Analog Input
Power Output
RF
RF
Power
Power
Power
Analog Input
Power
Power
Power
Digital Input
Power
Description
Asynchronous baud rate select / Synchronous clock signal
Asynchronous baud rate select / Synch. Bit or byte flow select
Optional External 32kHz clock, tied to GND when not used
Asynchronous UART receive data / Synchronous receive data
Asynchronous UART transmit data / Synchronous transmit data
Asynchronous sleep enable / Synchronous message ready signal
Asynchronous suspend control / Synchronous port ready signal
Asynchronous flow control RTS /Synchronous serial enable
Positive Digital Supply output for de-coupling purposes
Ground (0V)
Crystal Pin 2
Crystal Pin 1
Power Supply (+1.8V) to Power Amplifier
Antenna interface 1
Antenna interface 2
Ground (0V)
Power Supply (+3V DC)
Ground (0V)
Reference current
Ground (0V)
Power Supply (+3V DC)
Ground (0V)
Asynchronous / Synchronous port selection
Power Supply (+3V DC)
Table 3: nRF24AP1 pin function
3.
PIN ASSIGNMENT
VDD
PORTSEL VSS
VDD
VSS
IREF
24
BR2 /
SCLK
BR1 /
SFLOW
EXT32K
RXD /
SIN
TXD /
SOUT
SLEEP /
SMSGRDY
23
22
21
20
19
18
VSS
1
2
3
4
5
6
7
8
9
DVDD
nRF24AP1
QFN24 5x5
17
16
15
14
13
VDD
VSS_PA
ANT2
ANT1
VDD_PA
10
VSS
11
XC2
12
XC1
SUSPEND / RTS /
SEN
SRDY
Figure 2: nRF24AP1 pin assignment (top view) for a QFN24 5x5 package.
Nordic Semiconductor ASA
Revision: 1.0
- Vestre Rosten 81, N-7075 Tiller, Norway
-
Phone +4772898900
-
Page 5 of 25
Fax +4772898989
September 2006
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