Datasheet

Data Sheet AD8324
Rev. B | Page 9 of 16
Figure 13. Adjacent Channel Power
Figure 14. AC Response
Figure 15. Output Step Size vs. Gain Control
Figure 16. Two-Tone Intermodulation Distortion
Figure 17. Isolation in Transmit Disable Mode vs. Frequency
Figure 18. Gain Error vs. Gain Control for Various Frequencies
CENTER 21 MHz
–100
–90
–80
–70
0
–10
–20
–30
–40
–60
–50
100 kHz/DIV SPAN 1 MHz
04339-0-013
CH PWR
WORST ACP
12dBm
–61dBc
CL1
CL1
CU1
CU1
C0
C0
P
OUT
(dBm)
FREQUENCY (MHz)
0.1
GAIN (dB)
–
40
–
30
–20
–10
10
20
30
40
0
1 10
100 1000
DEC60
DEC54
DEC48
DEC42
DEC36
DEC30
DEC24
DEC18
DEC12
DEC 1 TO DEC 6
04339-0-014
GAIN CONTROL (Decimal Code)
0
6 12 18 24 30 36 42 48
54 60
OUTPUT STEP SIZE (dB)
f = 10MHz
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
04339-0-015
FREQUENCY (MHz)
V
OUT
(dBmV)
41.6 41.7
–40
–30
–20
–10
60
50
40
30
20
0
10
41.8 41.9 42.0 42.1 42.2 42.3 42.4 42.5
04339-0-016
V
OUT
= 57dBmV/TONE
@ MAX GAIN
FREQUENCY (MHz)
0
0
ISOLATION (dB)
–10
10
–20
–30
–
40
–50
–60
–
70
–80
–90
–100
100 1000
MAX GAIN
MIN GAIN
TXEN = 0
V
IN
= 27.5dBmV
04339-0-017
GAIN CONTROL (Decimal Code)
0 6 12 2418
30 36 42 48 54 60
GAIN ERROR (dB)
f = 10MHz
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–
2.0
f
= 5MHz
f = 42MHz
f = 65MHz
04339-0-018