Rainbow Electronics MAX19998 - Manual (Page 22)

SiGe, High-Linearity, 2300MHz to 4000MHz
Downconversion Mixer with LO Buffer
MAX19998
22 _____________________________________________________________________________________
Typical Operating Characteristics (continued)
(Typical Application Circuit with tuning elements outlined in Table 1, V
CC = 5.0V, f RF = 2300MHz to 2900MHz, LO is high-side injected
for a 300MHz IF, P RF = -5dBm, P LO = 0dBm, T C = +25NC, unless otherwise noted.)
LO LEAKAGE AT IF PORT (dBm)
-30
-20
-10
-40
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
MAX19998 toc121
LO FREQUENCY (MHz)
3050 2900 2750 2600 3200
T C = -40°C
T C = +25°C T C = +85°C
LO LEAKAGE AT IF PORT (dBm)
-30
-20
-10
-40
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
MAX19998 toc122
LO FREQUENCY (MHz)
3050 2900 2750 2600 3200
P LO = -3dBm, 0dBm, +3dBm
LO LEAKAGE AT IF PORT (dBm)
-30
-20
-10
-40
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
MAX19998 toc123
LO FREQUENCY (MHz)
3050 2900 2750 2600 3200
V CC = 4.75V, 5.0V, 5.25V
RF-TO-IF ISOLATION (dB)
40
50
60
30
RF-TO-IF ISOLATION
vs. RF FREQUENCY
MAX19998 toc124
RF FREQUENCY (MHz)
2750 2600 2450 2300 2900
T C = +25NC
T C = -40NC
T C = +85NC
RF-TO-IF ISOLATION (dB)
40
50
60
30
RF-TO-IF ISOLATION
vs. RF FREQUENCY
MAX19998 toc125
RF FREQUENCY (MHz)
2750 2600 2450 2300 2900
P LO = -3dBm, 0dBm, +3dBm
RF-TO-IF ISOLATION (dB)
40
50
60
30
RF-TO-IF ISOLATION
vs. RF FREQUENCY
MAX19998 toc126
RF FREQUENCY (MHz)
2750 2600 2450 2300 2900
V CC = 4.75V
V CC = 5.0V
V CC = 5.25V
LO LEAKAGE AT RF PORT vs.
LO FREQUENCY
MAX19998 toc127
LO FREQUENCY (MHz)
LO LEAKAGE AT RF PORT (dBm)
3500 3000
-35
-30
-25
-20
-40
2500 4000
T C = +25NC
T
C
= -40NC
T C = +85NC
LO LEAKAGE AT RF PORT vs.
LO FREQUENCY
MAX19998 toc128
LO FREQUENCY (MHz)
LO LEAKAGE AT RF PORT (dBm)
3500 3000
-35
-30
-25
-20
-40
2500 4000
P LO = -3dBm, 0dBm, +3dBm
LO LEAKAGE AT RF PORT vs.
LO FREQUENCY
MAX19998 toc129
LO FREQUENCY (MHz)
LO LEAKAGE AT RF PORT (dBm)
3500 3000
-35
-30
-25
-20
-40
2500 4000
V CC = 4.75V, 5.0V, 5.25V