CC1150-RTY1 datasheet(9/67 Pages) TI

9 / 67 page

CC1150

SWRS037A

Page 9 of 60

4.5

Analog Temperature Sensor

Tc = 25

°C, VDD = 3.0 V if nothing else is stated. 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

0.651

Output voltage at 0

°C

0.747

Output voltage at +40

°C

0.847

Output voltage at +80

°C

0.945

Temperature coefficient

2.45

mV/

°C

Fitted from –20

°C to +80°C

Absolute error in calculated

temperature

–2

°C

From –20

°C to +80°C when using 2.45 mV / °C,

after 1-point calibration at room temperature

* 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

Table 8: Analog Temperature Sensor Parameters

4.6

DC Characteristics

Tc = 25

°C if nothing else stated.

Digital Inputs/Outputs

Min

Max

Unit

Condition

Logic "0" input voltage

0.7

Logic "1" input voltage

VDD-0.7

VDD

Logic "0" output voltage

0.5

For up to 4 mA output current

Logic "1" output voltage

VDD-0.3

VDD

For up to 4 mA output current

Logic "0" input current

N/A

–1

µA

Input equals 0 V

Logic "1" input current

N/A

µA

Input equals VDD

Table 9: DC Characteristics

4.7

Power on Reset

For proper Power-On-Reset functionality, the power supply must comply with the requirements in

Table 10 below. 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 31 for a description of the

recommended start up sequence after turning power on.

Parameter

Min

Typ

Max

Unit

Condition/Note

Power-up ramp-up time

From 0 V until reaching 1.8 V

Power off time

Minimum time between power-on and power-off

Table 10: Power-on Reset Requirements

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