ADF7025 datasheet(13/44 Pages) AD

13 / 44 page

ADF7025

Rev. A | Page 13 of 44

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ACTUAL INPUT LEVEL

RSSI READBACK LEVEL

RF I/P (dB)

Figure 12. Digital RSSI Readback

–

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–6

OFFSET OF INTERFERER FROM WANTED SIGNAL (MHz)

Figure 13. Wideband Interference Rejection;

Wanted Signal (901 MHz, 38.4 kbps Data Rate, 200 kHz Frequency

Deviation) at 6 dB Above Sensitivity Point; Interferer = CW Jammer

RF I/P LEVEL (dBm)

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–1

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2.3V, +25°C

3V, +25°C

3.6V, +25°C

2.3V, –40°C

3V, –40°C

3.6V, –40°C

2.3V, +85°C

3V, +85°C

3.6V, +85°C

Figure 14. Sensitivity vs. VDD and Temperature

(172.8 kbps Data Rate, 200 kHz Frequency Deviation,

Baseband Bandwidth ±600 kHz)

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RF I/P LEVEL (dBm)

DATA RATE = 384k, FDEV = 450k

DATA RATE = 172k, FDEV = 200k

DATA RATE = 38.4k, FDEV = 200k

Figure 15. BER vs. Data Rate (Combined Matching Network)

DEVIATION FREQUENCY (kHz)

= CORRELATOR

= LINEAR

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50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800

Figure 16. Sensitivity vs. Mod Index (Data Rate = 384 kbps, Baseband

Filter Bandwidth = ±600 kHz), for Both Demodulator Types

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100 150 200 250 300 350 400 450 500 550 600

DEVIATION FREQUENCY (kHz)

= CORRELATOR

=LINEAR

= CORRELATOR

=LINEAR

BB BW = ±450kHz BB BW = ±600kHz

Figure 17. Sensitivity vs. Mod Index (Data Rate = 172.8 kbps),

for Both Demodulator Types

ADF7025 Datasheet(PDF) 13 Page - Analog Devices

ADF7025 Datasheet(HTML) 13 Page - Analog Devices

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