1700MHz to 2200MHz High-Linearity,
SPI-Controlled DVGA with Integrated Loopback Mixer
Typical Operating Characteristics (continued)
(MAX2059 Typical Application Circuit , V CC = +4.75V to +5.25V, digital attenuators set for maximum gain, 1700MHz ≤ f RF ≤ 2200MHz,
40MHz ≤ f LO ≤ 100MHz, T C = -40°C to +85°C. Typical values are at V CC = 5.0V, P IN = 0dBm, f RF = 1850MHz, f LO = 95MHz, f LBOUT =
f RF - f LO , and T C = +25°C, unless otherwise noted.)
35
34
OUTPUT IP3 vs. RF FREQUENCY*
14
NOISE FIGURE vs. RF FREQUENCY*
14
NOISE FIGURE vs. RF FREQUENCY*
33
32
V CC = 5.0V
V CC = 5.25V
12
T C = +85 ° C
T C = +25 ° C
12
31
30
10
10
29
V CC = 4.75V
8
8
28
27
26
6
T C = -40 ° C
T C = +5 ° C
6
V CC = 4.75V, 5.0V, 5.25V
25
4
4
1700
1800
1900 2000 2100
2200
2300
1700
1800
1900 2000 2100
2200
2300
1700
1800
1900 2000 2100
2200
2300
21
RF FREQUENCY (MHz)
OUTPUT P1dB vs. RF FREQUENCY*
21
RF FREQUENCY (MHz)
OUTPUT P1dB vs. RF FREQUENCY*
0
RF FREQUENCY (MHz)
INPUT RETURN LOSS vs. RF FREQUENCY
ATTEN A VARIED
20
19
T C = -40 ° C
T C = +5 ° C
20
19
V CC = 5.25V
V CC = 5.0V
5
10
15
16dB, 31dB
8dB
18
18
20
17
16
15
T C = +25 ° C
T C = +85 ° C
17
16
15
V CC = 4.75V
25
30
35
0dB
1dB
2dB
4dB
14
1700
1800
1900 2000 2100
2200
2300
14
1700
1800
1900 2000 2100
2200
2300
40
1500 1600 1700 1800 1900 2000 2100 2200 2300
0
RF FREQUENCY (MHz)
INPUT RETURN LOSS vs. RF FREQUENCY
ATTEN B VARIED
0
RF FREQUENCY (MHz)
OUTPUT RETURN LOSS vs. RF FREQUENCY
ATTEN A VARIED
0
RF FREQUENCY (MHz)
OUTPUT RETURN LOSS vs. RF FREQUENCY
ATTEN B VARIED
5
10
5
5
16dB, 31dB
8dB
15
0dB
10
0dB
10
1dB
20
25
30
15
20
15
20
35
40
31dB
25
31dB
25
2dB
4dB
0dB
45
1500 1600 1700 1800 1900 2000 2100 2200 2300
RF FREQUENCY (MHz)
30
1500 1600 1700 1800 1900 2000 2100 2200 2300
RF FREQUENCY (MHz)
30
1500 1600 1700 1800 1900 2000 2100 2200 2300
RF FREQUENCY (MHz)
* Off-chip tuning can improve performance for applications beyond 2200MHz. Contact factory for details.
6
_______________________________________________________________________________________
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