ADF7242 datasheet(33/108 Pages) AD

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ADF7242

Rev. 0 | Page 33 of 108

5.0

2.5

–2.5

–5.0

–7.5

–10.0

–12.5

–15.0

–17.5

–20.0

–22.5

–25.0

–27.5

131415

POWER AMPLIFIER CONTROL WORD

HIGH POWER MODE

DEFAULT MODE

6.0

7.0

6.5

5.5

4.5

3.5

2.5

5.0

4.0

3.0

2.0

2000

411

409.6

291

289

185

113.6

DATA RATE (kbps)

Figure 63. Transmitter Phase Error vs. Data Rate for Each of the Transmitter

Bandwidth LUTs, fCHANNEL = 2.45 GHz, Output Power = 3 dBm

Figure 66. Transmitter Output Power vs. Control Word for Default and High

Power Modes, fCHANNEL = 2.45 GHz, VDD_BAT = 3.6 V, Temperature = 25°C,

RF Carrier Frequency, Temperature, and VDD_BAT

(A discrete matching network and a harmonic filter are used as per the

ADF7242 reference design.)

3.5

3.0

2.5

2.0

1.5

1.0

0.5

4.0

2.40

2.41

2.42

2.43

2.44

2.45

2.46

2.47

2.48

FREQUENCY (GHz)

3.6V, +85°C

3.6V, +25°C

3.6V, –40°C

1.8V, –40°C

1.8V, +25°C

1.8V, +80°C

26.0

25.5

25.0

24.5

24.0

23.5

23.0

22.5

22.0

21.5

21.0

20.5

20.0

19.5

19.0

18.5

18.0

17.5

17.0

16.5

16.0

POWER AMPLIFIER CONTROL WORD

HIGH POWER MODE

DEFAULT MODE

Figure 67. Transmitter Current Consumption vs. Control Word, for Default

and High Power Modes, fCHANNEL = 2.45 GHz, VDD_BAT = 3.6 V,

Temperature = 25°C

Figure 64. PA Output Power vs. RF Carrier Frequency, Temperature, and VDD_BAT

(A discrete matching network and a harmonic filter are used as per the

ADF7242 reference design.)

–5

–10

–15

–20

–25

–30

–35

–40

–40 –30 –20 –10

TEMPERATURE (°C)

3 SIGMA TEMPERATURE ERROR

TEMPERATURE READING (LINEAR FITTING)

TEMPERATURE READING

(POLYNOMIAL FITTING)

–2

–4

–6

–8

–10

–12

–14

–16

–18

–20

–22

–24

–26

–28

456

PA LEVEL SETTING

3.6V, +85°C

3.6V, +25°C

3.6V, –40°C

1.8V, –40°C

1.8V, +25°C

1.8V, +80°C

Figure 68. Temperature Sensor Performance

(Average of 1000 ADC Readbacks) and 3-∑ Error vs. Temperature,

VDD_BAT = 3.6 V

Figure 65. PA Output Power vs. Control Word, Temperature, and VDD_BAT,

fCHANNEL = 2.44 GHz

(A discrete matching network and a harmonic filter are used as per the

ADF7242 reference design.)

ADF7242 Datasheet(PDF) 33 Page - Analog Devices

ADF7242 Datasheet(HTML) 33 Page - Analog Devices

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