Rainbow Electronics MAX2056 - Manual (Page 5)

MAX2056
800MHz to 1000MHz Variable-Gain
Amplifier with Analog Gain Control
_______________________________________________________________________________________ 5
20
30
25
40
35
45
50
55
60
MAX2056 toc10
REVERSE ISOLATION (dB)
REVERSE ISOLATION
vs. RF FREQUENCY
700 900 800 1000 1100 1200 1300 1400 1500
RF FREQUENCY (MHz)
21dB GAIN REDUCTION
MAXIMUM GAIN
2
3
5
4
6
7
NOISE FIGURE vs. RF FREQUENCY
MAX2056 toc11
RF FREQUENCY (MHz)
NOISE FIGURE (dB)
800 900 850 950 1000
T A = +85 °C
T A = +25 °C
T A = -40 °C
MAX2056 toc12
2
3
5
4
6
7
NOISE FIGURE vs. RF FREQUENCY
RF FREQUENCY (MHz)
NOISE FIGURE (dB)
800 900 850 950 1000
V CC = 5.25V
V CC = 4.75V V CC = 5.00V
36
37
39
38
40
41
OUTPUT IP3 vs. FREQUENCY
MAX2056 toc13
OUTPUT IP3 (dBm)
RF FREQUENCY (MHz)
800 900 850 950 1000
T A = +85 °C
T A = +25 °C
T A = -40 °C
MAX2056 toc14
36
37
39
38
40
41
OUTPUT IP3 vs. FREQUENCY
OUTPUT IP3 (dBm)
RF FREQUENCY (MHz)
800 900 850 950 1000
V CC = 5.25V
V CC = 4.75V
V CC = 5.00V
20
30
25
40
35
45
50
0 25
INPUT IP3 vs. ATTENUATION
MAX2056 toc15
ATTENUATION (dB)
INPUT IP3 (dBm)
10 5 15 20
T A = +85 °C
T A = +25 °C
T A = -40 °C
MAX2056 toc16
20
30
25
40
35
45
50
0 25
OUTPUT IP3 vs. ATTENUATION
ATTENUATION (dB)
OUTPUT IP3 (dBm)
10 5 15 20
T A = +85 °C
T
A
= +25 °C
T A = -40 °C
40
38
36
34
32
-6 3 -3 0 6 9 12
OUTPUT IP3 vs. OUTPUT POWER
MAX2056 toc17
OUTPUT POWER PER TONE (dBm)
OUTPUT IP3 (dBm)
40
45
55
50
60
65
OUTPUT IP2 vs. RF FREQUENCY
MAX2056 toc18
RF FREQUENCY (MHz)
OUTPUT IP2 (dBm)
800 900 850 950 1000
T A = +85 °C
T A = +25 °C
T A = -40 °C
Typical Operating Characteristics (continued)
One Attenuator Configuration
(Typical Application Circuit with one attenuator connected, V CC = +5.0V, R1 = 1.2k Ω, R2 = 3.92kΩ, f
IN = 900MHz maximum gain
setting, P OUT = +5dBm, linearity measured at P OUT = +5dBm/tone, T A = +25°C, unless otherwise noted.)