Rainbow Electronics MAX19998 - Manual (Page 13)

SiGe, High-Linearity, 2300MHz to 4000MHz
Downconversion Mixer with LO Buffer
MAX19998
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Typical Operating Characteristics (continued)
(Typical Application Circuit with tuning elements outlined in Table 1, V
CC = 3.3V, f RF = 3100MHz to 3900MHz, LO is low-side injected
for a 300MHz IF, P RF = -5dBm, P LO = 0dBm, T C = +25NC, unless otherwise noted.)
3RF - 3LO RESPONSE
vs. RF FREQUENCY
RF FREQUENCY (MHz)
3RF - 3LO RESPONSE (dBc)
55
60
65
70
75
50
MAX19998 toc44
3800 3600 3400 3200 3000 4000
V CC = 3.3V
P RF = -5dBm
T C = -40°C, +25°C, +85°C
3RF - 3LO RESPONSE
vs. RF FREQUENCY
RF FREQUENCY (MHz)
3RF - 3LO RESPONSE (dBc)
55
60
65
70
75
50
MAX19998 toc45
3800 3600 3400 3200 3000 4000
V CC = 3.3V
P RF = -5dBm
P LO = -3dBm, 0dBm, +3dBm
3RF - 3LO RESPONSE
vs. RF FREQUENCY
RF FREQUENCY (MHz)
3RF - 3LO RESPONSE (dBc)
55
60
65
70
75
50
MAX19998 toc46
3800 3600 3400 3200 3000 4000
P RF = -5dBm
V CC = 3.6V V CC = 3.3V
V CC = 3.0V
NOISE FIGURE vs. RF FREQUENCY
RF FREQUENCY (MHz)
NOISE FIGURE (dB)
8
9
10
11
12
7
MAX19998 toc47
3800 3600 3400 3200 3000 4000
V CC = 3.3V
T C = +85NC
T C = +25NC
T C = -40NC
NOISE FIGURE vs. RF FREQUENCY
RF FREQUENCY (MHz)
NOISE FIGURE (dB)
8
9
10
11
12
7
MAX19998 toc48
3800 3600 3400 3200 3000 4000
V CC = 3.3V
P LO = -3dBm, 0dBm, +3dBm
NOISE FIGURE vs. RF FREQUENCY
RF FREQUENCY (MHz)
NOISE FIGURE (dB)
8
9
10
11
12
7
MAX19998 toc49
3800 3600 3400 3200 3000 4000
V CC = 3.0V, 3.3V, 3.6V
INPUT P 1dB vs. RF FREQUENCY
MAX19998 toc50
INPUT
P
1d
B
(dBm)
7
8
9
6
RF FREQUENCY (MHz)
3800 3600 3400 3200 3000 4000
T C = +85NC
T C = -40NC
T C = +25NC
V CC = 3.3V
INPUT P 1dB vs. RF FREQUENCY
MAX19998 toc51
INPUT
P
1d
B
(dBm)
7
8
9
6
RF FREQUENCY (MHz)
3800 3600 3400 3200 3000 4000
P LO = -3dBm, 0dBm, +3dBm
V CC = 3.3V
INPUT P 1dB vs. RF FREQUENCY
MAX19998 toc52
INPUT
P
1d
B
(dBm)
7
8
9
6
RF FREQUENCY (MHz)
3800 3600 3400 3200 3000 4000
V CC = 3.3V
V CC = 3.6V
V CC = 3.0V