TIDC-CC2650-CC2592-EMK _Test_Report
TIDC-CC2650-CC2592-EMK
This report provides the procedure to control CC2592 range extender device from CC2650 and key test data
measured on TIDA-CC2650-CC2592-EM board.
CC2592 Range Extender Control
To setup CC2592 range extender control from CC2650, any DIO pins can be used.
On CC2650, general purpose signals from the RFCORE can be assigned to GPIO using the
IOC:IOCFG<n>.PORTID fields. The settings to be programmed are 0x2F, 0x30, 0x31, 0x32 to get
RFC_GPO0, RFC_GPO1, RFC_GPO2, RFC_GPO3 respectively. By default, RF Core Data Out 0 is
configured to be high when the LNA is enabled and low otherwise. RF Core Data Out 1 is configured to be high
when the PA is active and low otherwise. For further information on programming the IO control registers,
please refer to the technical reference manual for CC2650.
In TIDC-CC2650-CC2592-EMK design, DIO7 and DIO13 on CC2650 are used for PA enable and LNA enable
respectively for CC2592 range extender device. RFCore Data Out 0 signal is mapped to DIO13 and RF Core
Data Out 1 is mapped to DIO7. DIO14 is initialized and programmed as a GPIO to provide HGM input for
CC2592. Registers configuration needed is as follows:
IOCFG7 = 0x30
IOCFG13 = 0x2F
This can be programmed using IOCPortConfigureSet function as follows:
#include "ioc.h"
// Map RFC_GPO0 to DIO13
IOCPortConfigureSet(IOID_13, IOC_PORT_RFC_GPO0,
IOC_IOMODE_NORMAL);
// Map RFC_GPO1 to DIO7
IOCPortConfigureSet(IOID_7, IOC_PORT_RFC_GPO1,
IOC_IOMODE_NORMAL);
1
TIDC-CC2650-CC2592-EMK
Test Results and Performance curves
Test data in this report has been measured on TIDC-CC2650-CC2592-EMK under typical conditions defined in
this document as temperature = 25°C, supply = 3.0 V, frequency = 2440 MHz and internal DC-DC converter
enabled on CC2650, if nothing else is stated. The PCB layout on this design will greatly influence the RF
performance. When using CC2650 and CC2592 on a design, it is highly recommended to follow TI reference
design for layout, stack-up and schematic as close as possible to obtain optimum performance.
Current Consumption
Parameter
Receive Current
Condition
-100 dBm input level
Typical
10.2
Unit
mA
Transmit Current
TXPOWER = 0x3F
TXPOWER = 0x1C
TXPOWER = 0x12
TXPOWER = 0x0E
TXPOWER = 0x0B
TXPOWER = 0x53
TXPOWER = 0x51
179.8
155.3
134.4
119.9
105.1
96.0
88.3
mA
mA
mA
mA
mA
mA
mA
Table 1. Current Consumption
Receive Parameters
Parameter
Receive Sensitivity
Receive Sensitivity
Condition
IEEE 802.15.4 (Offset Q-PSK DSSS, 250 kbps)
1-Mbps GFSK (Bluetooth Low Energy)
Typical
-100.2
-98.7
Unit
dBm
dBm
30.2
40.6
57.9
dB
dB
dB
Wanted signal 3 dB above the sensitivity level,
IEEE 802.15.4 modulated interferer at IEEE 802.15.4 channels
Interferer Rejection
±5 MHz from wanted signal, IEEE 802.15.4
±10 MHz from wanted signal, IEEE 802.15.4
±20 MHz from wanted signal. Wanted signal at -82dBm
Table 2. Receive Parameters
Transmit Parameters
Parameter
Emission*
with TXPOWER = 0x28
Max Error Vector
Magnitude (EVM)
Condition
Conducted 2·RF (FCC restricted band)
Conducted 3·RF (FCC restricted band)
Measured as defined by IEEE 802.15.4
TXPOWER = 0x28
Typical
-44.5
-53.2
3.2
Unit
dBm
dBm
%
Table 3. Transmit Parameters
*This design has been tested to be compliant with FCC specification at 2*Fc and 3*Fc on radiated tests as well with RF shield. At
high power levels, RF shield is required to be complaint with FCC harmonic emission regulations.
2
TIDC-CC2650-CC2592-EMK
Output Power Programming
The RF output power of the CC2650 - CC2592 EM is controlled by txPower parameter on CC2650 radio setup operation. Table 4
shows the typical output power and current consumption for the recommended power settings. The value specified in the table refers
to the combined value of txPower.IB and txPower.GC.
TXPOWER
0x3F
0x1C
0x12
0x0E
0x0B
0x53
0x51
Power [dBm]
22.0
20.9
19.5
18.4
16.9
15.9
14.9
Current [mA]
179.8
155.3
134.4
119.9
105.1
96.0
88.3
Table 4. Power Table
Note that the recommended power settings given in Table 4 are a subset of all the possible TXPOWER register settings. However,
using other settings than those recommended might result in suboptimal performance in areas like current consumption, EVM, and
spurious emission.
Typical Performance Curves
Figure 1. Output Power vs. Frequency and Power Supply Voltage, TXPOWER = 0X28
3
TIDC-CC2650-CC2592-EMK
Figure 2. Output Power vs. Temperature at various TXPOWER settings
Figure 3. Sensitivity vs. Frequency and Power Supply Voltage for IEEE 802.15.4 PHY mode
4
TIDC-CC2650-CC2592-EMK
Figure 4. Sensitivity vs. Temperature and Power Supply Voltage IEEE 802.15.4 PHY mode
Figure 5. Selectivity measured with wanted signal at 2440MHz
5
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