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CC2400
SWRS042A
Page 1 of 83
CC2400
2.4 GHz Low-Power RF Transceiver
Applications
2.4 GHz MHz ISM/SRD band systems
Game controllers
Sports and leisure equipment
Wireless audio
PC peripherals
Advanced toys
Product Description
The
CC2400 is a true single-chip 2.4 GHz
RF transceiver designed for low-power
and low-voltage wireless applications. The
RF transceiver is integrated with a
baseband modem supporting data rates
up to 1 Mbps.
The
CC2400 is a low-cost, highly integrated
solution enabling robust wireless
communication in the 2.4 - 2.4835 GHz
unlicensed ISM band. It is intended for
systems compliant with world-wide
regulations covered by EN 300 440
(Europe), CFR47 Part 15 (US) and ARIB
STD-T66 (Japan).
Targeting a wide range of applications at
2.4 GHz, the
CC2400 supports over-the-air
data rates of 10 kbps, 250 kbps and
1 Mbps without requiring any modifications
to the hardware.
The
CC2400 provides extensive hardware
support for packet handling, data
buffering, burst transmissions, data coding
and error detection reducing the workload
on the host microcontroller.
The main operating parameters of
CC2400
can be programmed via an SPI-bus. In a
typical system
CC2400 will be used
together with a microcontroller and a few
external, passive components.
CC2400 is based on Chipcon's SmartRF
-
03 technology in 0.18
m CMOS.
Key Features
True single-chip 2.4 GHz RF
transceiver with baseband modem
10 kbps, 250 kbps and 1 Mbps over-
the-air data rates
Low current consumption (RX: 24 mA)
Low core supply voltage (1.8 V)
Programmable output power
No external RF switch / filter needed
I/Q low-IF receiver
I/Q direct up-conversion transmitter
Few external components
FIFO allows bursting of data
Packet handling hardware
Data buffering
Digital RSSI output
Small size (QFN 48 package), 7x7 mm
Reference design complies with EN
300 328, EN 300 440, FCC CFR47 part
15 and ARIB STD-T66
Powerful and flexible development
tools available
Easy-to-use software for generating
the
CC2400 configuration data
This document contains information on a pre-production product. Specifications and information herein are subject to
change without notice.
CC2400
SWRS042A
Page 2 of 83
Table of contents
1
ABBREVIATIONS.............................................................................................................. 4
2
FEATURES ........................................................................................................................ 5
3
ABSOLUTE MAXIMUM RATINGS.................................................................................... 6
4
OPERATING CONDITIONS .............................................................................................. 6
5
ELECTRICAL SPECIFICATIONS ..................................................................................... 7
6
GENERAL CHARACTERISTICS ...................................................................................... 7
7
RF TRANSMIT SECTION .................................................................................................. 8
8
RF RECEIVE SECTION..................................................................................................... 9
9
AFC SECTION ................................................................................................................. 10
10
RSSI / CARRIER SENSE SECTION............................................................................ 11
11
IF SECTION.................................................................................................................. 11
12
FREQUENCY SYNTHESIZER SECTION.................................................................... 11
13
DIGITAL INPUTS/OUTPUTS....................................................................................... 12
14
PIN ASSIGNMENT....................................................................................................... 13
15
CIRCUIT DESCRIPTION ............................................................................................. 15
16
APPLICATION CIRCUIT.............................................................................................. 17
16.1
I
NPUT
/
OUTPUT MATCHING
....................................................................................... 17
16.2
B
IAS RESISTOR
........................................................................................................ 17
16.3
C
RYSTAL
................................................................................................................. 17
16.4
D
IGITAL
I/O ............................................................................................................. 17
16.5
P
OWER SUPPLY DECOUPLING AND FILTERING
............................................................ 17
16.6
P
OWER SUPPLY SWITCHING
...................................................................................... 17
17
CONFIGURATION OVERVIEW................................................................................... 20
18
CONFIGURATION SOFTWARE.................................................................................. 20
19
4-WIRE SERIAL CONFIGURATION INTERFACE...................................................... 21
20
OVERVIEW OF CONFIGURATIONS AND HARDWARE SUPPORT ........................ 24
21
MICROCONTROLLER INTERFACE AND PIN CONFIGURATION ........................... 25
21.1
C
ONFIGURATION INTERFACE
..................................................................................... 25
21.2
S
IGNAL INTERFACE IN UN
-
BUFFERED MODE
................................................................ 25
21.3
G
ENERAL CONTROL AND STATUS PINS
....................................................................... 25
22
DATA BUFFERING...................................................................................................... 27
22.1
B
UFFERED MODE
..................................................................................................... 27
22.2
B
UFFERED MODE HARDWARE SUPPORT
..................................................................... 27
23
PACKET HANDLING HARDWARE SUPPORT.......................................................... 29
23.1
D
ATA PACKET FORMAT
............................................................................................. 29
23.2
E
RROR DETECTION
.................................................................................................. 29
23.3
H
ARDWARE INTERFACE
............................................................................................ 31
24
DATA / LINE ENCODING ............................................................................................ 31
24.1
D
ATA ENCODING IN BUFFERED MODE
......................................................................... 31
24.2
D
ATA ENCODING IN UN
-
BUFFERED MODE
................................................................... 32
25
RADIO CONTROL STATE MACHINE ........................................................................ 34
26
POWER MANAGEMENT FLOW CHART ................................................................... 36
27
FSK MODULATION FORMATS .................................................................................. 38
28
BUILT-IN TEST PATTERN GENERATOR.................................................................. 38
29
RECEIVER CHANNEL BANDWIDTH ......................................................................... 39
30
DATA RATE PROGRAMMING.................................................................................... 40
31
DEMODULATOR, BIT SYNCHRONIZER AND DATA DECISION............................. 41
32
AUTOMATIC FREQUENCY CONTROL ..................................................................... 42
33
LINEAR IF AND AGC SETTINGS ............................................................................... 43
34
RSSI.............................................................................................................................. 44
35
CARRIER SENSE ........................................................................................................ 45
36
INTERFACING AN EXTERNAL LNA OR PA ............................................................. 45
37
GENERAL PURPOSE / TEST OUTPUT CONTROL PINS......................................... 45
38
FREQUENCY PROGRAMMING.................................................................................. 47
CC2400
SWRS042A
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38.1
T
RANSMIT MODE
...................................................................................................... 47
38.2
R
ECEIVE MODE
........................................................................................................ 47
39
ALTERNATE TX IF SETTING ..................................................................................... 47
40
VCO .............................................................................................................................. 48
41
VCO SELF-CALIBRATION.......................................................................................... 48
42
OUTPUT POWER PROGRAMMING ........................................................................... 48
43
CRYSTAL OSCILLATOR ............................................................................................ 49
44
INPUT / OUTPUT MATCHING..................................................................................... 50
45
TYPICAL PERFORMANCE GRAPHS......................................................................... 50
46
SYSTEM CONSIDERATIONS AND GUIDELINES ..................................................... 53
46.1
SRD
REGULATIONS
.................................................................................................. 53
46.2
F
REQUENCY HOPPING AND MULTI
-
CHANNEL SYSTEMS
................................................ 53
46.3
D
ATA BURST TRANSMISSIONS
................................................................................... 53
46.4
C
ONTINUOUS TRANSMISSIONS
.................................................................................. 53
46.5
C
RYSTAL DRIFT COMPENSATION
............................................................................... 53
46.6
S
PECTRUM EFFICIENT MODULATION
.......................................................................... 54
46.7
L
OW LATENCY SYSTEMS
........................................................................................... 54
46.8
L
OW COST SYSTEMS
................................................................................................ 54
46.9
B
ATTERY OPERATED SYSTEMS
.................................................................................. 54
46.10
I
NCREASING OUTPUT POWER
.................................................................................... 54
47
PCB LAYOUT RECOMMENDATIONS ....................................................................... 56
48
ANTENNA CONSIDERATIONS .................................................................................. 57
49
CONFIGURATION REGISTERS ................................................................................. 58
50
PACKAGE DESCRIPTION (QFN48)........................................................................... 76
51
RECOMMENDED LAYOUT FOR PACKAGE (/QFN48)............................................. 77
52
PACKAGE THERMAL PROPERTIES......................................................................... 77
53
SOLDERING INFORMATION...................................................................................... 77
54
IC MARKING ................................................................................................................ 78
55
PLASTIC TUBE SPECIFICATION............................................................................... 80
56
CARRIER TAPE AND REEL SPECIFICATION .......................................................... 80
57
ORDERING INFORMATION........................................................................................ 80
58
GENERAL INFORMATION.......................................................................................... 81
58.1
D
OCUMENT
H
ISTORY
............................................................................................... 81
58.2
P
RODUCT
S
TATUS
D
EFINITIONS
................................................................................ 82
58.3
D
ISCLAIMER
............................................................................................................. 82
58.4
T
RADEMARKS
.......................................................................................................... 82
58.5
L
IFE
S
UPPORT
P
OLICY
............................................................................................. 82
59
ADDRESS INFORMATION.......................................................................................... 83
CC2400
SWRS042A
Page 4 of 83
1
Abbreviations
ACP
Adjacent
Channel
Power
ACR
Adjacent
Channel
Rejection
ADC
Analog-to-Digital
Converter
AFC
Automatic Frequency Correction
AGC
Automatic Gain Control
BER
Bit
Error
Rate
BOM
Bill Of Materials
bps
bits per second
BT
Bandwidth-Time
product
(for
GFSK)
CRC
Cyclic
Redundancy
Check
CSMA
Carrier Sense Multiple Access
CSMA / CA
Carrier Sense Multiple Access / Collision Avoidance
DAC
Digital-to-Analog
Converter
ESR
Equivalent
Series
Resistance
FH
Frequency
Hopping
FHSS
Frequency Hopping Spread Spectrum
FIFO
First In First Out (queue)
FS
Frequency
Synthesizer
FSK
Frequency
Shift
Keying
GFSK
Gaussian Frequency Shift Keying
IF
Intermediate
Frequency
ISM
Industrial
Scientific
Medical
kbps
kilo bits per second
LNA
Low Noise Amplifier
Mbps
Mega bits per second
MCU
Micro
Controller
Unit
NRZ
Non
Return
to
Zero
PA
Power
Amplifier
PD
Phase
Detector
PCB
Printed Circuit Board
PN9
Pseudo-random Bit Sequence (9-bit)
PLL
Phase
Locked
Loop
PRN
Pseudo
Random
Number
PRNG
Pseudo Random Number Generator
RF
Radio
Frequency
RSSI
Received Signal Strength Indicator
RX
Receive
(mode)
SPI
Serial Peripheral Interface
SRD
Short
Range
Device
TBD
To Be Decided/Defined
TDMA
Time Division Multiple Access
TX
Transmit
(mode)
VCO
Voltage
Controlled
Oscillator
VGA
Variable
Gain
Amplifier
CC2400
SWRS042A
Page 5 of 83
2
Features
2400 2483 MHz RF transceiver
GFSK and FSK modulation
Very low current consumption (RX:
24 mA)
Over-the-air data rates of 10 kbps,
250 kbps and 1 Mbps
High sensitivity (-87 dBm @ 1Mbps,
BER=10
-3
)
Agile frequency synthesizer (40 us
settling time)
On-chip VCO, LNA and PA
Low core supply voltage (1.6-2.0 V)
Flexible
I/O
supply
voltage
(1.63.6 V) to match the signal
levels of the interfacing
microcontroller
Programmable output power
I/Q low-IF receiver
I/Q direct up-conversion transmitter
Few external components
Only reference crystal and a few
passives needed
No external filters needed
Programmable baseband modem
4-wire SPI interface
Serial clock up to 20 MHz
Digital RSSI output
Packet handling hardware support
Preamble generator with
programmable length
Programmable synchronization
word insertion/detection
CRC computation over the data
field
8B/10B line coding option
Data buffering
32 byte FIFO
Provides for flexible communication
with the host controller.
Burst transmission reduces the
average power consumption.
Powerful and flexible development
tools available
Fully equipped development kit
Demonstration board reference
design with microcontroller code
Easy-to-use SmartRF Studio
software for generating the
CC2400
configuration data
Small size (QFN 48 package) 7 x 7 mm
Reference design complies with EN
300 328, EN 300 440, FCC CFR47 part
15 and ARIB STD-T66
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