AD8367
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
2.0
0.8
0.7
0.6
0.5
0.4
1.5
10MHz
70MHz
140MHz
240MHz
V
AGC
1.0
140MHz
70MHz
0.5
C
= 100pF
AGC
0
–0.5
–1.0
–1.5
–2.0
–2.5
–3.0
240MHz
10MHz
V
OUT
0
–60
–5
–5
–1
–5
–5
2
–50
–40
–30
–20
–10
0
–2
0
TIME (Seconds)
1
INPUT LEVEL (dBV rms)
Figure 21. AGC RSSI (Voltage on DETO Pin) vs. Input Power at 10 MHz,
70 MHz, 140 MHz, and 240 MHz
Figure 24. AGC Time Domain Response (3 dB Step)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
2.0
+25°C
–40°C
+85°C
1.5
1.0
+85°C
+25°C
0.5
0
–0.5
–1.0
–1.5
–2.0
–2.5
–3.0
–40°C
19.0097
19.7297
19.9097
20.0897
20.2697
–60
–50
–40
–30
–20
–10
0
GAIN SCALING (mV/dB)
INPUT LEVEL (dBV rms)
Figure 22. AGC RSSI (Voltage on DETO Pin) vs.
Input Power over Temperature at 70 MHz
Figure 25. Gain Scaling Distribution at 70 MHz
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
2.5
2.0
1.5
WCDMA
1.0
16QAM
256QAM
64QAM
0.5
SINE
0
–0.5
–1.0
–1.5
–2.0
–2.5
IS95FWD
–60
–50
–40
–30
–20
–10
0
–6.4
–6.2
–6.0
–5.8
–5.6
–5.4
–5.2
–5.0
–4.8
INPUT LEVEL (dBV rms)
INTERCEPT (dB)
Figure 23. AGC RSSI (Voltage on DETO Pin) vs. Input Power
for Various Modulation Schemes
Figure 26. Gain Intercept Distribution at 70 MHz
Rev. A | Page 10 of 24
ADI [ ADI ]
