Datasheet

AD8367
Rev. A | Page 10 of 24
140MHz
10MHz
70MHz
240MHz
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
2.0
–3.0
–2.5
–2.0
–1.5
–1.0
–0.5
0
0.5
1.0
1.5
–60 –50 –40 –30 –20 –10 0
02710-021
INPUT LEVEL (dBV rms)
RSSI (V)
LINEARITY ERROR (dB)
10MHz
70MHz
140MHz
240MHz
Figure 21. AGC RSSI (Voltage on DETO Pin) vs. Input Power at 10 MHz,
70 MHz, 140 MHz, and 240 MHz
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
2.0
–3.0
–2.5
–2.0
–1.5
–1.0
–0.5
0
0.5
1.0
1.5
–60 –50 –40 –30 –20 –10 0
02710-022
INPUT LEVEL (dBV rms)
RSSI (V)
LINEARITY ERROR (dB)
+85°C
+25°C
–40°C
+25°C
–40°C
+85°C
Figure 22. AGC RSSI (Voltage on DETO Pin) vs.
Input Power over Temperature 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
–2.5
–2.0
–1.5
–1.0
–0.5
0
0.5
1.0
1.5
–60 –50 –40 –30 –20 –10 0
02710-023
INPUT LEVEL (dBV rms)
RSSI (V)
LINEARITY ERROR (dB)
16QAM
IS95FWD
256QAM
WCDMA
64QAM
SINE
Figure 23. AGC RSSI (Voltage on DETO Pin) vs. Input Power
for Various Modulation Schemes
0.8
V
AGC
V
OUT
0.7
0.6
0.5
0.4
–2
–5
–1
–5
01
–5
2
–5
02710-024
TIME (Seconds)
V (V)
C
AGC
= 100pF
Figure 24. AGC Time Domain Response (3 dB Step)
19.0097 19.7297 19.9097 20.0897 20.2697
02710-025
GAIN SCALING (mV/dB)
Figure 25. Gain Scaling Distribution at 70 MHz
–6.4 –6.2 –6.0 –5.8 –5.6 –5.4 –5.2 –5.0 –4.8
02710-026
INTERCEPT (dB)
Figure 26. Gain Intercept Distribution at 70 MHz