100
10
VLOG
SUPPLY CURRENT – mA
1
+25 C
0.1
0.01
–40 C
0.001
+85 C
GROUND REFERENCE
+10dBm INPUT
LEVEL SHOWN
HERE
500mV PER
VERTICAL DIVISION
500mV PER
VERTICAL
DIVISION
0.0001
0.00001
0.5
100ns PER HORIZONTAL
DIVISION
0.7
0.9
1.1
1.3
1.5 1.7
1.9
ENABLE VOLTAGE – V
2.1
2.3
2.5
Figure 1. Supply Current vs. Enable Voltage @
T
A
= –40
°
C, +25
°
C and +85
°
C
Figure 4. RSSI Pulse Response for Inputs Stepped from
Zero to –63 dBV, –43 dBV, –23 dBV, –3 dBV
VLOG
500mV PER
VERTICAL
DIVISION
–13dBV
–33dBV
–53dBV
–73dBV
–93dBV
VLOG
500mV PER
VERTICAL
DIVISION
GROUND REFERENCE
ENBL
5V PER
VERTICAL
DIVISION
500ns PER HORIZONTAL
DIVISION
GROUND REFERENCE
100ns PER HORIZONTAL
DIVISION
INPUT
1V PER VERTICAL
DIVISION
Figure 2. Power On/Off Response Time with RF Input of
–93 dBV to –13 dBV
Figure 5. Large Signal RSSI Pulse Response with R
L
= 100
Ω
and C
L
= 33 pF, 100 pF and 330 pF (Curves Overlap)
27pF
VLOG
270pF
VLOG
500mV PER
VERTICAL DIVISION
GROUND REFERENCE
3300pF
200mV PER
VERTICAL DIVISION
GROUND REFERENCE
INPUT
500mV PER
VERTICAL DIVISION
200ns PER HORIZONTAL
DIVISION
100 s PER
HORIZONTAL
DIVISION
Figure 3. Large Signal RSSI Pulse Response with
C
L
= 100 pF and R
L
= 50
Ω
and 75
Ω
(Curves Overlap)
Figure 6. Small Signal AC Response of RSSI Output with
External Filter Capacitance of 27 pF, 270 pF and 3300 pF
–4–
REV. B
AD [ ANALOG DEVICES ]
