Texas Instruments Chipcon Products CC2400DK User Manual
User Manual
Rev. 1.1
CC2400DK Development Kit
SWRU050 Page 1 of 35
Table of contents
INTRODUCTION.......................................................................................................................3
EVALUATION MODULE........................................................................................................... 4
CIRCUIT DESCRIPTION .............................................................................................................. 4
PCB LAYOUT ........................................................................................................................... 4
SCHEMATIC ............................................................................................................................ 10
EVALUATION BOARD...........................................................................................................12
POWER SUPPLY SECTION ........................................................................................................ 12
USB INTERFACE..................................................................................................................... 14
RS-232 INTERFACE................................................................................................................ 14
JUMPERS ............................................................................................................................... 14
MICROCONTROLLER AND FPGA.............................................................................................. 15
CONNECTORS ........................................................................................................................ 16
PCB LAYOUT ......................................................................................................................... 17
SCHEMATICS, CC2400EB ...................................................................................................... 20
BILL OF MATERIALS, CC2400EB ............................................................................................ 25
USING THE DEVELOPMENT KIT.......................................................................................... 31
CC2400 RF EVALUATION USING SMARTRF
USING THE CC2400DK FOR PROTOTYPING ............................................................................. 32
TROUBLESHOOTING............................................................................................................33
IT DOES NOT WORK................................................................................................................. 33
SMARTRF
®
STUDIO DOES NOT RECOGNIZE THE CC2400EB .................................................... 33
®
STUDIO............................................................... 31
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Introduction
The CC2400 single-chip RF transceiver provides a highly integrated, flexible low-cost solution
for applications using the worldwide unlicensed 2.4 GHz frequency band. The CC2400DK
development kit is a powerful and flexible tool specifically designed to make it easy for the
user to evaluate the RF performance of the CC2400 and to minimize the time spent on
evaluation.
The Development Kit includes two Evaluation Boards and two Evaluation Modules. The
Evaluation Modules contain the CC2400 chip and required external components.
The Evaluation Board serves as a motherboard for the Evaluation Modules. The Evaluation
Board provides a USB port, a serial port, buttons, LEDs, voltage regulator, configuration
jumpers and connectors to make it easy to interface the CC2400 with the SmartRF
software and various test equipment.
®
This User Manual describes how to use the Development Kit. SmartRF
Studio is
documented in its own user manual.
®
Your SmartRF
CC2400DK Development Kit should contain the following items:
Kit contents
Item Number of articles
Evaluation Board (CC2400EB) 2
Evaluation Module (CC2400EM) 2
Quick Start instructions 1
Antenna, 50Ω quarter-wave monopole, SMA male connector
2
SMA to BNC adapters 4
USB cable 2
CC2400 sample kit 1
®
Studio
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Evaluation Module
The Evaluation Module contains the CC2400 chip together with the needed external circuitry
for operation. Not all components are needed in an actual application. Please see the
datasheet for a typical application circuit.
The CC2400 operates in the 2.4 GHz frequency band. Although this frequency band is
usually described as “world-wide”, some countries do not allow unlicensed operation in this
band. Please refer to application note AN001 for more information about applicable
regulations.
Important: Contact your local telecommunication authorities before transmitting an RF signal.
Circuit description
The CC2400 RF section includes all the necessary components for correct operation.
The CC2400 is connected to a 16 MHz crystal.
The Evaluation Module can be plugged into the Evaluation Board. Two 2x10 pin pin row
connectors with 0.050-inch pitch are used for this purpose.
Figure 1: CC2400EM Evaluation Module
PCB layout
RF circuits operating at high frequencies are sensitive to the physical layout of the PCB.
Chipcon has carefully optimized the layout of the CC2400EM evaluation module and we
therefore recommend that the user copies it when making own PCB designs.
The PCB is of a 4-layer type in order to provide a well-defined ground plane as well as
adequate routing space. The laminate used is standard FR-4 board material. The PCB is
1.0mm thick, with layer 1 on the top side, layers 2 and 3 are internal layers and layer 4 is on
the bottom side. Layers 1 and 4 are used for routing, while layer 2 is a ground plane and layer
3 is used for power routing. All areas not utilized for routing are filled with copper connected
to ground to provide RF shielding. The ground planes on all layers are stitched together with
closely spaced vias.
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Figure 2: CC2400EM PCB layout, layer 1
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Figure 3: CC2400EM PCB layout, layer 2
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Figure 4: CC2400 PCB layout, layer 3
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Figure 5: CC2400EM PCB layout, layer 4
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Figure 6: CC2400EM component placement, top side (left) and bottom side (right)
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Schematic
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Bill of materials, CC2400EM
Bill of materials, CC2400EM
Reference Description Value Part
C1 Capacitor 0603 2.2 µF, 10% C_2U2_0603_X5R_K_10
C11 Capacitor 0402 100 nF, 10% C_100N_0402_X5R_J_10
C61 Capacitor 0402 0.5 pF, ± 0.25 pF C_0P5_0402_NP0_C_50
C62 Capacitor 0402 5.6 pF, ± 0.25 pF C_5P6_0402_NP0_C_50
C71 Capacitor 0402 100 nF, 10% C_100N_0402_X5R_J_10
C81 Capacitor 0402 0.5 pF, ± 0.25 pF C_0P5_0402_NP0_C_50
C101 Capacitor 0402 10 nF, 10% C_10N_0402_X7R_K_25
C161 Capacitor 0402 68 pF, 5% C_68P_0402_NP0_J_50
C251 Capacitor 0402 100 nF, 10% C_100N_0402_X5R_K_10
C261 Capacitor 0402 100 nF, 10% C_100N_0402_X5R_K_10
C411 Capacitor 0402 68 pF, 5% C_68P_0402_NP0_J_50
C421 Capacitor 0402 27 pF, 5% C_27P_0402_NP0_J_50
C431 Capacitor 0402 27 pF, 5% C_27P_0402_NP0_J_50
C481 Capacitor 0402 68 pF, 5% C_68P_0402_NP0_J_50
L61 Inductor 0402 7.5 nH, 5% L_7N5_0402_J
L62 Inductor 0402 5.6 nH, 5% L_5N6_0402_J
L71 Inductor 0402 27 nH, 5% L_27N_0402_J
L81 Inductor 0402 7.5 nH, 5% L_7N5_0402_J
P1 SMD pinrow socket SMD_SOCKET_2x10 (Samtec
SFM-110-02-S-D-A-K-TR)
P2 SMD pinrow socket SMD_SOCKET_2x10 (Samtec
SFM-110-02-S-D-A-K-TR)
P4 Surface-mount
SMA_SMD
SMA, straight
R1 Resistor 0402 2.2 Ω, 5% R2R2_0402_J
R451 Resistor 0402 43 kΩ, 1% R_43K_0402_F
U1 Single-chip
CC2400
transceiver
X1 Crystal, ceramic
SMD 4x25mm
X_16.000/10/10/10/16 (Toyocom
TSX-10A 16M 16pF)
Note: The crystal X1 mounted on the EM board is a 16.000 MHz crystal, with ±10 ppm initial
tolerance, ± 10 ppm drift over temperature and a temperature range of -10˚ C to +60˚ C. The
crystal is designed for 16 pF load capacitance. In an actual application, the tolerance, drift
and temperature range of the crystal must be considered with application requirements in
mind. Please consult the data sheet and SmartRF
®
Studio for more information. It is possible
to choose a larger crystal package to save cost. The crystal should have an ESR of 60 Ω or
less.
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