Rainbow Electronics MAX2055 - Manual (Page 4)

MAX2055
Digitally Controlled, Variable-Gain, Differential
ADC Driver/Amplifier
4 _______________________________________________________________________________________
ATTENUATION ABSOLUTE ACCURACY
(ALL STATES)
MAX2055 toc07
FREQUENCY (MHz)
ABSOLUTE ACCURACY (dB)
270 240 60 90 120 180 150 210
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
-1.0
30 300
ATTENUATION RELATIVE ACCURACY
(ALL STATES)
MAX2055 toc08
FREQUENCY (MHz)
RELATIVE ACCURACY (dB)
270 240 60 90 120 180 150 210
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
-1.0
30 300
REVERSE ISOLATION vs. RF FREQUENCY
MAX2055 toc09
FREQUENCY (MHz)
REVERSE ISOLATION (dB)
270 240 60 90 120 180 150 210
24
28
32
36
40
20
30 300
NOISE FIGURE vs. FREQUENCY
MAX2055 toc10
FREQUENCY (MHz)
NOISE FIGURE (dB)
270 240 60 90 120 180 150 210
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
4.0
30 300
T A = +85 °C
T A = -40 °C
T A = +25 °C
OUTPUT P-1dB vs. FREQUENCY
MAX2055 toc11
FREQUENCY (MHz)
OUTPUT P-1dB (dBm)
270 240 60 90 120 180 150 210
22
23
24
25
26
27
21
30 300
T
A
= +85 °C
T A = -40 °C T A = +25 °C
OUTPUT P-1dB vs. FREQUENCY
MAX2055 toc12
FREQUENCY (MHz)
OUTPUT P-1dB (dBm)
270 240 60 90 120 180 150 210
22
23
24
25
26
27
21
30 300
V CC = +4.75V
V CC = +5V
V CC = +5.25V
OUTPUT IP3 vs. FREQUENCY
MAX2055 toc13
FREQUENCY (MHz)
OIP3 (dBm)
270 240 60 90 120 180 150 210
32
34
36
38
42
40
44
30
30 300
T A = +85 °C
T A = -40 °C
T A = +25 °C
P RF1 = P RF2 = 5dBm
AT OUTPUT, ∆f = 1MHz
OUTPUT IP3 vs. FREQUENCY
MAX2055 toc14
FREQUENCY (MHz)
OIP3 (dBm)
270 240 60 90 120 180 150 210
32
34
36
38
42
40
44
30
30 300
V CC = +5.25V
V CC = +4.75V
V CC = +5V
P RF1 = P RF2 = 5dBm
AT OUTPUT, ∆f = 1MHz
INPUT IP3 vs. ATTENUATION STATE
MAX2055 toc15
ATTENUATION STATE
IIP3 (dBm)
20 16 4 8 12
20
25
30
35
40
45
50
55
15
0 24
P RF1 = P RF2 = 5dBm
AT OUTPUT, ∆f = 1MHz,
f IN = 70MHz
Typical Operating Characteristics (continued)
(Circuit of Figure 1, V
CC
= 5.0V, R
1
= 1.13k Ω, max gain (B0 = B1 = B2 = B3 = B4 = 0), P
OUT
= 5dBm, T
A
= +25°C, unless other-
wise noted.)