25
24
23
22
21
20
19
18
17
16
15
1
10
100
FREQUENCY – MHz
1000
RSSI INTERCEPT – dBV
RSSI SLOPE – mV/dB
–103
–104
–105
–106
–107
–108
–109
–110
–111
–112
–113
1
10
100
FREQUENCY – MHz
1000
Figure 13. RSSI Slope vs. Frequency Using Termination of
52.3
Ω
in Series with 4.7 nH
Figure 16. RSSI Intercept vs. Frequency Using Termina-
tion of 52.3
Ω
in Series with 4.7 nH
2ns PER HORIZONTAL DIVISION
14
12
10
CURRENT – mA
LIMITER OUTPUTS
100mV PER VERTICAL DIVISION
ADDITIONAL SUPPLY CURRENT
8
6
4
2
2mV PER VERTICAL DIVISION
0
0
LIMITER OUTPUT CURRENT
50
100
150
200
250
R
LIM
–
300
350
400
450
Figure 14. Limiter Output at 300 MHz for a Sine Wave
Input of –60 dBV (–47 dBm), Using an R
LOAD
of 50
Ω
and an
R
LIM
of 100
Ω
Figure 17. Additional Supply Current and Limiter Out-
put Current vs. R
LIM
10
NORMALIZED
LIMITER PHASE RESPONSE – Degrees
8
6
4
2
0
–2
–4
–6
–8
–50
–40
–30
–20
–10
INPUT LEVEL – dBm Re 50
0
10
T
A
= +25 C
T
A
= –40 C
T
A
= +85 C
LMLO
LMHI
LIMITER OUTPUTS
50mV PER VERTICAL DIVISION
INPUT
1mV PER VERTICAL DIVISION
12.5ns PER HORIZONTAL
DIVISION
–10
–60
Figure 15. Limiter Response at LMHI, LMLO with Pulsed
Sine Input of –70 dBV (–57 dBm) at 50 MHz; R
LOAD
= 50
Ω
,
R
LIM
= 200
Ω
Figure 18. Normalized Limiter Phase Response vs. Input
Level. Frequency = 100 MHz; T
A
= –40
°
C, +25
°
C and +85
°
C
–6–
REV. B
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