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CC2540F128 View Datasheet(PDF) - Texas Instruments

Part NameDescriptionManufacturer
CC2540F128 2.4-GHz Bluetooth® low energy System-on-Chip TI
Texas Instruments TI
CC2540F128 Datasheet PDF : 34 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
CC2540F128, CC2540F256
SWRS084B OCTOBER 2010 REVISED JULY 2011
www.ti.com
16-MHz RC OSCILLATOR
Measured on Texas Instruments CC2540 EM reference design with TA = 25°C and VDD = 3 V
PARAMETER
TEST CONDITIONS
MIN
Frequency (1)
Uncalibrated frequency accuracy
Calibrated frequency accuracy
Start-up time
Initial calibration time(2)
TYP
16
±18%
±0.6%
10
50
MAX UNIT
MHz
μs
μs
(1) The calibrated 16-MHz RC oscillator frequency is the 32-MHz XTAL frequency divided by 2.
(2) When the 16-MHz RC oscillator is enabled, it is calibrated when a switch from the 16-MHz RC oscillator to the 32-MHz crystal oscillator
is performed while SLEEPCMD.OSC_PD is set to 0.
RSSI CHARACTERISTICS
Measured on Texas Instruments CC2540 EM reference design with TA = 25°C and VDD = 3 V
PARAMETER
TEST CONDITIONS
MIN TYP
Useful RSSI range(1)
Absolute uncalibrated RSSI accuracy(1)
High-gain mode
Standard mode
High-gain mode
99 to 44
90 to 35
±4
Step size (LSB value)
1
(1) Assuming CC2540 EM reference design. Other RF designs give an offset from the reported value.
MAX UNIT
dBm
dB
dB
FREQUENCY SYNTHESIZER CHARACTERISTICS
Measured on Texas Instruments CC2540 EM reference design with TA = 25°C, VDD = 3 V and fc = 2440 MHz
PARAMETER
TEST CONDITIONS
MIN TYP MAX
Phase noise, unmodulated
carrier
At ±1-MHz offset from carrier
At ±3-MHz offset from carrier
At ±5-MHz offset from carrier
109
112
119
UNIT
dBc/Hz
ANALOG TEMPERATURE SENSOR
Measured on Texas Instruments CC2540 EM reference design with TA = 25°C and VDD = 3 V
PARAMETER
TEST CONDITIONS
MIN
Output
Temperature coefficient
Voltage coefficient
Initial accuracy without calibration
Measured using integrated ADC, internal band-gap voltage
reference, and maximum resolution
Accuracy using 1-point calibration
Current consumption when enabled
TYP
1480
4.5
1
±10
±5
0.5
MAX
UNIT
12-bit
mv/°C
/ 0.1 V
°C
°C
mA
8
Copyright © 20102011, Texas Instruments Incorporated
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