EVAL-ADF7025DB1 View Datasheet(PDF) - Analog Devices
Part Name
Description
MFG CO.
'EVAL-ADF7025DB1' PDF : 44 Pages View PDF
20
0
ACTUAL INPUT LEVEL
–20
–40
RSSI READBACK LEVEL
–60
–80
–100
–120
–120 –100 –80
–60
–40
–20
0
20
RF I/P (dB)
Figure 12. Digital RSSI Readback
70
60
50
40
30
20
10
0
–10
–12
–6
0
6
12
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
0
–1
–2
–3
–4
2.3V, +25°C
–5
3V, +25°C
3.6V, +25°C
2.3V, –40°C
–6
3V, –40°C
3.6V, –40°C
–7
2.3V, +85°C
3V, +85°C
3.6V, +85°C
–8
–115
–110
–105
–100
–95
–90
–85
RF I/P LEVEL (dBm)
Figure 14. Sensitivity vs. VDD and Temperature
(172.8 kbps Data Rate, 200 kHz Frequency Deviation,
Baseband Bandwidth ±600 kHz)
ADF7025
0
DATA RATE = 384k, FDEV = 450k
–1
DATA RATE = 172k, FDEV = 200k
DATA RATE = 38.4k, FDEV = 200k
–2
–3
–4
–5
–6
–7
–8
–116
–108
–100
–90
–78
RF I/P LEVEL (dBm)
Figure 15. BER vs. Data Rate (Combined Matching Network)
–50
= CORRELATOR
–55
= LINEAR
–60
–65
–70
–75
–80
–85
–90
–95
–100
0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800
DEVIATION FREQUENCY (kHz)
Figure 16. Sensitivity vs. Mod Index (Data Rate = 384 kbps, Baseband
Filter Bandwidth = ±600 kHz), for Both Demodulator Types
–60
= CORRELATOR
–65
= LINEAR
–70
–75
BB BW = ±450kHz BB BW = ±600kHz
–80
–85
–90
–95
–100
–105
0
50 100 150 200 250 300 350 400 450 500 550 600
DEVIATION FREQUENCY (kHz)
Figure 17. Sensitivity vs. Mod Index (Data Rate = 172.8 kbps),
for Both Demodulator Types
Rev. A | Page 13 of 44
Share Link: 
