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CC2550-RTY1 数据表(PDF) 8 Page - Texas Instruments

部件名 CC2550-RTY1
功能描述  Low-Cost Low-Power 2.4 GHz RF Transmitter
PDF  62 Pages
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制造商  TI2 [Texas Instruments]
网页  https://www.ti.com
标志 TI2 - Texas Instruments

CC2550-RTY1 数据表(HTML) 8 Page - Texas Instruments

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CC2550
SWRS039B
Page 8 of 58
4.5
Analog Temperature Sensor
The characteristics of the analog temperature sensor at 3.0 V supply voltage are listed in Table 8
below. Note that it is necessary to write 0xBF to the PTEST register to use the analog temperature
sensor in the IDLE state.
Parameter
Min
Typ
Max
Unit
Condition/Note
Output voltage at –40
°C
0.660
V
Output voltage at 0
°C
0.755
V
Output voltage at +40
°C
0.859
V
Output voltage at +80
°C
0.958
V
Temperature coefficient
2.54
mV/
°C
Fitted from –20
°C to +80°C
Error in calculated
temperature, calibrated
-2
*
0
2
*
°C
From –20
°C to +80°C when using 2.54 mV / °C,
after 1-point calibration at room temperature
* The indicated minimum and maximum error with 1-
point calibration is based on simulated values for
typical process parameters
Current consumption
increase when enabled
0.3
mA
Table 8: Analog Temperature Sensor Parameters
4.6
DC Characteristics
Tc = 25
°C if nothing else stated.
Digital Inputs/Outputs
Min
Max
Unit
Condition/Note
Logic "0" input voltage
0
0.7
V
Logic "1" input voltage
VDD-0.7
VDD
V
Logic "0" output voltage
0
0.5
V
For up to 4 mA output current
Logic "1" output voltage
VDD-0.3
VDD
V
For up to 4 mA output current
Logic "0" input current
NA
-50
nA
Input equals 0 V
Logic "1" input current
NA
50
nA
Input equals VDD
Table 9: DC Characteristics
4.7
Power-On Reset
When the power supply complies with the requirements in Table 10 below, proper Power-On-
Reset functionality is guaranteed. Otherwise, the chip should be assumed to have unknown state
until transmitting an SRES strobe over the SPI interface. See Section 16.1 on page 25 for further
details.
Parameter
Min
Typ
Max
Unit
Condition/Note
Power-up ramp-up time
5
ms
From 0 V until reaching 1.8 V
Power off time
1
ms
Minimum time between power off and power-on.
Table 10: Power-on Reset Requirements



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