CC2541-Q1

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SWRS128 – JUNE 2014

4.13

RSSI Characteristics

Measured on Texas Instruments CC2541-Q1 EM reference design with TA = 25°C and VDD = 3 V

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

2 Mbps, GFSK, 320-kHz Deviation, 0.1% BER and 2 Mbps, GFSK, 500-kHz Deviation, 0.1% BER

Reduced gain by AGC algorithm

64

Useful RSSI range(1)

dB

High gain by AGC algorithm

64

Reduced gain by AGC algorithm

79

RSSI offset(1)

dBm

High gain by AGC algorithm

99

Absolute uncalibrated accuracy(1)

±6

dB

Step size (LSB value)

1

dB

All Other Rates/Formats

Standard mode

64

Useful RSSI range(1)

dB

High-gain mode

64

Standard mode

98

RSSI offset(1)

dBm

High-gain mode

107

Absolute uncalibrated accuracy(1)

±3

dB

Step size (LSB value)

1

dB

(1)

Assuming CC2541-Q1 EM reference design. Other RF designs give an offset from the reported value.

4.14

Frequency Synthesizer Characteristics

Measured on Texas Instruments CC2541-Q1 EM reference design with TA = 25°C, VDD = 3 V and fc = 2440 MHz

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

At ±1-MHz offset from carrier

–109

Phase noise, unmodulated carrier

At ±3-MHz offset from carrier

–112

dBc/Hz

At ±5-MHz offset from carrier

–119

4.15

Analog Temperature Sensor

Measured on Texas Instruments CC2541-Q1 EM reference design with TA = 25°C and VDD = 3 V

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Output

1480

12-bit

Temperature coefficient

4.5

/ 1°C

Voltage coefficient

1

0.1 V

Measured using integrated ADC, internal band-gap voltage

reference, and maximum resolution

Initial accuracy without calibration

±10

°C

Accuracy using 1-point calibration

±5

°C

Current consumption when enabled

0.5

mA

4.16

Comparator Characteristics

TA = 25°C, VDD = 3 V. All measurement results are obtained using the CC2541-Q1 reference designs, post-calibration.

PARAMETER

TEST CONDITIONS

MIN

TYP MAX

UNIT

Common-mode maximum voltage

VDD

V

Common-mode minimum voltage

–0.3

Input offset voltage

1

mV

Offset vs temperature

16

µV/°C

Offset vs operating voltage

4

mV/V

Supply current

230

nA

Hysteresis

0.15

mV

Copyright © 2014, Texas Instruments Incorporated

Specifications

13

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