Receiver Sensitivity Versus Data Rate And Frequency Separation - Texas Instruments Chipcon Products CC1000-RTB1 Manual

Single chip very low power rf transceiver
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13. Receiver sensitivity versus data rate and frequency separation

The receiver sensitivity depends on the
data rate, the data format, FSK frequency
separation and the RF frequency. Typical
figures for the receiver sensitivity (BER =
-3
10
) are shown in Table 6 for 64 kHz
frequency separations and Table 7 for 20
kHz separations. Optimised sensitivity
Data rate
Separation
[kBaud]
[kHz]
0.6
64
1.2
64
2.4
64
4.8
64
9.6
64
19.2
64
38.4
64
76.8
64
Average current
consumption
Table 6. Receiver sensitivity as a function of data rate at 433 and 868 MHz, BER = 10
frequency separation 64 kHz, normal current settings
Data rate
Separation
[kBaud]
[kHz]
0.6
20
1.2
20
2.4
20
4.8
20
9.6
20
19.2
20
38.4
20
76.8
20
Average current
consumption
Table 7. Receiver sensitivity as a function of data rate at 433 and 868 MHz, BER = 10
frequency separation 20 kHz, normal current settings
Data rate
Separation
[kBaud]
[kHz]
0.6
64
1.2
64
2.4
64
4.8
64
9.6
64
19.2
64
38.4
64
76.8
64
Average current
consumption
Table 8. Receiver sensitivity as a function of data rate at 433 and 868 MHz, BER = 10
frequency separation 64 kHz , low current settings
433 MHz
NRZ
Manchester
UART
mode
mode
mode
-113
-114
-111
-112
-109
-110
-107
-108
-105
-106
-103
-104
-102
-103
-100
-101
9.3 mA
433 MHz
NRZ
Manchester
UART
mode
mode
mode
-109
-111
-108
-110
-106
-108
-104
-106
-103
-104
-102
-103
-98
-100
-94
-98
9.3 mA
433 MHz
NRZ
Manchester
UART
mode
mode
mode
-111
-113
-110
-111
-108
-109
-106
-107
-104
-105
-102
-103
-101
-102
-99
-100
7.4 mA
SWRS048A
configurations
are
performance the frequency separation
should be as high as possible especially at
high data rates. Table 8 shows the
sensitivity for low current settings. See
page 28 for how to program different
current consumption.
868 MHz
NRZ
Manchester
mode
mode
-113
-110
-111
-111
-108
-109
-109
-106
-107
-107
-104
-105
-105
-102
-103
-103
-100
-101
-102
-98
-99
-100
-97
-98
11.8 mA
868 MHz
NRZ
Manchester
mode
mode
-109
-106
-108
-108
-104
-106
-106
-103
-105
-104
-101
-103
-103
-100
-101
-102
-99
-100
-98
-98
-99
-94
-94
-96
11.8 mA
868 MHz
NRZ
Manchester
mode
mode
-111
-107
-109
-110
-106
-107
-108
-104
-105
-106
-102
-103
-104
-100
-101
-102
-98
-99
-101
-96
-97
-99
-95
-96
9.6 mA
CC1000
used.
For
best
UART
mode
-110
-108
-106
-104
-102
-100
-98
-97
-3
,
UART
mode
-106
-104
-103
-101
-100
-99
-98
-94
-3
,
UART
mode
-107
-106
-104
-102
-100
-98
-96
-95
-3
,
Page 22 of 55

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