Rainbow Electronics MAX19998 - Manual (Page 14)

SiGe, High-Linearity, 2300MHz to 4000MHz
Downconversion Mixer with LO Buffer
MAX19998
14 _____________________________________________________________________________________
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.)
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
MAX19998 toc53
LO FREQUENCY (MHz)
LO LEAKAGE AT IF PORT (dBm)
3500 3300 3100 2900
-40
-30
-20
-10
-50
2700 3700
T C = -40°C, +25°C, +85°C
V CC = 3.3V
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
MAX19998 toc54
LO FREQUENCY (MHz)
LO LEAKAGE AT IF PORT (dBm)
3500 3300 3100 2900
-40
-30
-20
-10
-50
2700 3700
P LO = -3dBm, 0dBm, +3dBm
V CC = 3.3V
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
MAX19998 toc55
LO FREQUENCY (MHz)
LO LEAKAGE AT IF PORT (dBm)
3500 3300 3100 2900
-40
-30
-20
-10
-50
2700 3700
V CC = 3.0V
V CC = 3.3V
V CC = 3.6V
RF-TO-IF ISOLATION
vs. RF FREQUENCY
MAX19998 toc56
RF-TO-IF ISOLATION (dB)
20
30
40
50
10
T C = -40NC
T C = +25NC
T C = +85NC
V CC = 3.3V
RF FREQUENCY (MHz)
3800 3600 3400 3200 3000 4000
RF-TO-IF ISOLATION
vs. RF FREQUENCY
MAX19998 toc57
RF-TO-IF ISOLATION (dB)
20
30
40
50
10
P LO = -3dBm, 0dBm, +3dBm
V CC = 3.3V
RF FREQUENCY (MHz)
3800 3600 3400 3200 3000 4000
RF-TO-IF ISOLATION
vs. RF FREQUENCY
MAX19998 toc58
RF-TO-IF ISOLATION (dB)
20
30
40
50
10
V
CC
= 3.0V, 3.3V, 3.6V
RF FREQUENCY (MHz)
3800 3600 3400 3200 3000 4000
LO LEAKAGE AT RF PORT
vs. LO FREQUENCY
MAX19998 toc59
LO FREQUENCY (MHz)
LO LEAKAGE AT RF PORT (dBm)
3500 3000 2500 4000
-35
-30
-25
-20
-40
T C = -40°C, +25°C, +85°C
V CC = 3.3V
LO LEAKAGE AT RF PORT
vs. LO FREQUENCY
MAX19998 toc60
LO FREQUENCY (MHz)
LO LEAKAGE AT RF PORT (dBm)
3500 3000 2500 4000
-35
-30
-25
-20
-40
P LO = -3dBm, 0dBm, +3dBm
V CC = 3.3V
LO LEAKAGE AT RF PORT
vs. LO FREQUENCY
MAX19998 toc61
LO FREQUENCY (MHz)
LO LEAKAGE AT RF PORT (dBm)
3500 3000 2500 4000
-35
-30
-25
-20
-40
V CC = 3.6V
V CC = 3.0V
V CC = 3.3V