CC2533

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SWRS087 – JUNE 2010

16-MHz RC OSCILLATOR

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

16

MHz

Uncalibrated frequency accuracy

±18%

Calibrated frequency accuracy

±0.6%

±1%

Start-up time

10

ms

50

ms

(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/CCA CHARACTERISTICS

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

RSSI range

100

dB

Absolute uncalibrated RSSI/CCA accuracy

±4

dB

RSSI/CCA offset

73

dB

Step size (LSB value)

1

dB

FREQEST CHARACTERISTICS

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

FREQEST range

±250

kHz

FREQEST accuracy

±40

kHz

FREQEST offset

20

kHz

Step size (LSB value)

7.8

kHz

FREQUENCY SYNTHESIZER CHARACTERISTICS

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

At ±1-MHz offset from carrier

–110

Phase noise, unmodulated carrier

At ±2-MHz offset from carrier

–117

dBc/Hz

At ±5-MHz offset from carrier

–122

BATTERY MONITOR CHARACTERISTICS

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Settling time

2

µs

For voltages up to 2.5 V

24

mV

Step size

For voltages above 2.5 V

169

mV

Across 1.95 V to 2.5 V, with single-point calibration at 1.95 V

2

20

mV

Calibrated accuracy

Across 2.5 V to 3.6 V, with single-point calibration at 1.95 V

10

55

mV

CONTROL INPUT AC CHARACTERISTICS

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

The undivided system clock is 32 MHz when crystal oscillator is used.

The undivided system clock is 16 MHz when calibrated 16-MHz RC

16

32

MHz

oscillator is used.

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