CC1101：超低功耗300-900MHz RF TX/RX解决方案

TX/RX

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CC1101

SWRS061E Page 16 of 97

Parameter Min Typ Max Unit Condition/Note

Spurious emissions

conducted, harmonics

not included

315 MHz

433 MHz

868 MHz

915 MHz

< -58

< -53

< -50

< -54

< -56

< -50

< -52

< -53

< -51

< -54

dBm

Measured with +10 dBm CW at 315 MHz and 433 MHz

Frequencies below 960 MHz

Frequencies above 960 MHz

Frequencies below 1 GHz

Frequencies above 1 GHz

Frequencies within 47-74, 87.5-118, 174-230, 470-862 MHz

Measured with +12 dBm CW at 868 MHz

Frequencies below 1 GHz

Frequencies above 1 GHz

Frequencies within 47-74, 87.5-118, 174-230, 470-862 MHz

All radiated spurious emissions are within the limits of ETSI.

The peak conducted spurious emission is -53 dBm at 699

MHz, which is in a frequency band limited to -54 dBm by EN

300 220. An alternative filter can be used to reduce the

emission at 699 MHz below -54 dBm, for conducted

measurements, and is shown in Figure 1. See more

information in DN017 [12]

Measured with +11 dBm CW at 915 MHz

Frequencies below 960 MHz

Frequencies above 960 MHz

TX latency 8 bit Serial operation. Time from sampling the data on the

transmitter data input pin until it is observed on the RF output

ports

Table 10: RF Transmit Section

Table 11: Typical Variation in Output Power over Temperature and Supply Voltage, 868 MHz

Table 12: Typical Variation in Output Power over Temperature and Supply Voltage, 915 MHz

Supply Voltage

VDD = 1.8 V

Supply Voltage

VDD = 3.0 V

Supply Voltage

VDD = 3.6 V

Temperature [°C] -40 25 85 -40 25 85 -40 25 85

Output Power [dBm],

PATABLE=0xC0, +12 dBm

12 11 10 12 12 11 12 12 11

Output Power [dBm],

PATABLE=0xC5, +10 dBm

11 10 9 11 10 10 11 10 10

Output Power [dBm],

PATABLE=0x50, 0 dBm

1 0 -1 2 1 0 2 1 0

Supply Voltage

VDD = 1.8 V

Supply Voltage

VDD = 3.0 V

Supply Voltage

VDD = 3.6 V

Temperature [°C] -40 25 85 -40 25 85 -40 25 85

Output Power [dBm],

PATABLE=0xC0, +11 dBm

11 10 10 12 11 11 12 11 11

Output Power [dBm],

PATABLE=0x8E, +0 dBm

2 1 0 2 1 0 2 1 0

CC1101

SWRS061E Page 18 of 97

4.6 Frequency Synthesizer Characteristics

= 25°C, VDD = 3.0 V if nothing else is stated. All measurement results are obtained using the CC1101EM reference designs

( [2] and [3]). Min figures are given using a 27 MHz crystal. Typ and max figures are given using a 26 MHz crystal.

Table 15: Frequency Synthesizer Parameters

4.7 Analog Temperature Sensor

= 25°C, VDD = 3.0 V if nothing else is stated. All measurement results obtained using the CC1101EM reference designs ( [2]

and [3]). Note that it is necessary to write 0xBF to the PTEST register to use the analog temperature sensor in the IDLE state.

Table 16: Analog Temperature Sensor Parameters

Parameter Min Typ Max Unit Condition/Note

Programmed frequency

resolution

397 F

XOSC

412 Hz 26-27 MHz crystal. The resolution (in Hz) is equal

for all frequency bands

Synthesizer frequency

tolerance

±40 ppm Given by crystal used. Required accuracy

(including temperature and aging) depends on

frequency band and channel bandwidth / spacing

RF carrier phase noise –92 dBc/Hz @ 50 kHz offset from carrier

RF carrier phase noise –92 dBc/Hz @ 100 kHz offset from carrier

RF carrier phase noise –92 dBc/Hz @ 200 kHz offset from carrier

RF carrier phase noise –98 dBc/Hz @ 500 kHz offset from carrier

RF carrier phase noise –107 dBc/Hz @ 1 MHz offset from carrier

RF carrier phase noise –113 dBc/Hz @ 2 MHz offset from carrier

RF carrier phase noise –119 dBc/Hz @ 5 MHz offset from carrier

RF carrier phase noise –129 dBc/Hz @ 10 MHz offset from carrier

PLL turn-on / hop time 85.1 88.4 88.4

µs

Time from leaving the IDLE state until arriving in

the RX, FSTXON or TX state, when not

performing calibration. Crystal oscillator running

PLL RX/TX settling time 9.3 9.6 9.6

µs

Settling time for the 1·IF frequency step from RX

to TX

PLL TX/RX settling time 20.7 21.5 21.5

µs

Settling time for the 1·IF frequency step from TX

to RX

PLL calibration time 694 721 721

µs

Calibration can be initiated manually or

automatically before entering or after leaving

RX/TX

Parameter Min Typ Max Unit Condition/Note

Output voltage at –40°C

0.651 V

Output voltage at 0°C

0.747 V

Output voltage at +40°C

0.847 V

Output voltage at +80°C

0.945 V

Temperature coefficient 2.47

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 2.47 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

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