Rainbow Electronics MAX19995А - Manual (Page 12)

MAX19995A
Dual, SiGe, High-Linearity, 1700MHz to 2200MHz
Downconversion Mixer with LO Buffer/Switch
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CHANNEL ISOLATION vs. RF FREQUENCY
(VARIOUS VALUES OF L3 AND L6)
RF FREQUENCY (MHz)
CHANNEL ISOLATION (dB)
2200 2000 2100 1900 1800
45
55
40
50
1700
MAX19995A toc4
6
10nH
6.8nH
3.6nH
0 Ω
LO LEAKAGE AT IF PORT vs. LO FREQUENCY
(VARIOUS VALUES OF L3 AND L6)
LO FREQUENCY (MHz)
LO LEAKAGE AT IF PORT
(dBm)
2550 2350 2450 2250 2150
-50
-40
-20
-60
-30
2050
MAX19995A toc4
7
10nH
6.8nH
3.6nH
0 Ω
RF-TO-IF ISOLATION vs. RF FREQUENCY
(VARIOUS VALUES OF L3 AND L6)
RF FREQUENCY (MHz)
RF-TO-IF ISOLATION (dB)
2200 2000 2100 1900 1800
20
30
50
10
40
1700
MAX19995A toc4
8
10nH 6.8nH
3.6nH
0 Ω
Typical Operating Characteristics (continued)
( Typical Application Circuit, R1 = R4 = 681Ω, R2 = R5 = 1.5kΩ, V CC = 5.0V, P RF = -5dBm, P LO = 0dBm, f RF = 1850MHz,
f LO = 2200MHz, f IF = 350MHz, T C = +25°C, unless otherwise noted.)