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.)
REVERSE GAIN vs. RF FREQUENCY
-30
ADJUSTING ATTEN A AND B
25.0
MIXER CONV LOSS vs. RF FREQUENCY
25.0
MIXER CONV LOSS vs. RF FREQUENCY
-40
22.5
T C = +85 ° C
T C = +25 ° C
22.5
V CC = 5.0V
V CC = 4.75V
20.0
20.0
-50
ATTEN A AND B, 0dB
-60
17.5
17.5
-70
ATTEN A
OR B,
15.0
12.5
T C = +5 ° C
T C = -5 ° C
15.0
12.5
V CC = 5.25V
31dB
-80
10.0
10.0
1500 1600 1700 1800 1900 2000 2100 2200 2300
1700
1800
1900 2000 2100
2200
2300
1700
1800
1900 2000 2100
2200
2300
RF FREQUENCY (MHz)
MIXER CONV LOSS vs. RF FREQUENCY
RF FREQUENCY (MHz)
MIXER OUTPUT IP3 vs. RF FREQUENCY
RF FREQUENCY (MHz)
MIXER OUTPUT IP3 vs. RF FREQUENCY
25.0
22.5
P LO = -3dBm
10
9
T C = -40 ° C
10
9
V CC = 5.25V
P LO = -6dBm
8
8
20.0
17.5
7
6
T C = +5 ° C
T C = +25 ° C
7
6
V CC = 4.75V
V CC = 5.0V
15.0
P LO = 0dBm
5
4
5
4
12.5
10.0
3
2
T C = +85 ° C
3
2
1700
1800
1900 2000 2100
2200
2300
1700
1800
1900 2000 2100
2200
2300
1700
1800
1900 2000 2100
2200
2300
10
RF FREQUENCY (MHz)
MIXER OUTPUT IP3 vs. RF FREQUENCY
0
RF FREQUENCY (MHz)
MIXER OUTPUT RETURN LOSS
vs. RF FREQUENCY (MIXER ENABLED)
0
RF FREQUENCY (MHz)
MIXER OUTPUT RETURN LOSS
vs. RF FREQUENCY (MIXER ENABLED)
9
P LO = -3dBm
P LO = 0dBm
5
5
8
10
T C = +5 ° C
T C = -40 ° C
10
V CC = 4.75V, 5.0V, 5.25V
7
6
5
15
20
25
15
20
25
4
P LO = -6dBm
30
30
3
35
T C = +85 ° C
T C = +25 ° C
35
2
1700
1800
1900 2000 2100
2200
2300
40
1700
1800
1900 2000 2100
2200
2300
40
1700
1800
1900 2000 2100 2200
2300
RF FREQUENCY (MHz)
RF FREQUENCY (MHz)
RF FREQUENCY (MHz)
_______________________________________________________________________________________
7
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