Rainbow Electronics MAX19996A - Manual (Page 25)

MAX19996A
SiGe, High-Linearity, 2000MHz to 3900MHz
Downconversion Mixer with LO Buffer
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2LO LEAKAGE AT RF PORT
vs. LO FREQUENCY
MAX19996A toc136
LO FREQUENCY (MHz)
2LO LEAKAGE AT RF PORT (dBm)
3500 3200 2900
-20
-40
-30
-10
-50
2600 3800
T C = -30 ° C, +25 ° C, +85 ° C
2LO LEAKAGE AT RF PORT
vs. LO FREQUENCY
MAX19996A toc137
LO FREQUENCY (MHz)
2LO LEAKAGE AT RF PORT (dBm)
3500 3200 2900
-20
-40
-30
-10
-50
2600 3800
P
LO
= -3dBm, 0dBm, +3dBm
2LO LEAKAGE AT RF PORT
vs. LO FREQUENCY
MAX19996A toc138
LO FREQUENCY (MHz)
2LO LEAKAGE AT RF PORT (dBm)
3500 3200 2900
-20
-40
-30
-10
-50
2600 3800
V CC = 4.75V, 5.0V, 5.25V
RF PORT RETURN LOSS
vs. RF FREQUENCY
MAX19996A toc139
RF FREQUENCY (MHz)
RF PORT RETURN LOSS (dB)
3800 3600 3400 3200
5
10
25
20
15
0
30
3000 4000
P
LO
= -3dBm, 0dBm, +3dBm
IF PORT RETURN LOSS
vs. IF FREQUENCY
MAX19996A toc140
IF FREQUENCY (MHz)
IF PORT RETURN LOSS (dB)
410 230 320 140
20
30
40
10
0
50
50 500
f LO = 3200MHz
L1, L2 = 270nH
V CC = 4.75V, 5.0V, 5.25V
L1, L2 = 390nH
L1, L2 = 470nH
L1, L2 = 120nH
LO PORT RETURN LOSS
vs. LO FREQUENCY
MAX19996A toc141
LO FREQUENCY (MHz)
LO PORT RETURN LOSS (dB)
2900 3450 2350
20
30
10
0
40
1800 4000
P LO = -3dBm
P LO = +3dBm
P LO = 0dBm
SUPPLY CURRENT
vs. TEMPERATURE (T C )
MAX19996A toc142
TEMPERATURE ( ° C)
SUPPLY CURRENT (mA)
25 55 -5
220
230
210
240
250
200
-35 85
V CC = 5.0V
V CC = 4.75V
V CC = 5.25V
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
MAX19996A toc143
LO FREQUENCY (MHz)
LO LEAKAGE AT IF PORT (dBm)
3300 3000
-40
-30
-50
-20
-10
-60
2700 3600
L3 = 4.7nH
L3 = 0 Ω
RF-TO-IF ISOLATION
vs. RF FREQUENCY
MAX19996A toc144
RF FREQUENCY (MHz)
RF-TO-IF ISOLATION (dB)
3600 3300
30
40
50
20
3000 3900
L3 = 4.7nH
L3 = 0 Ω
Typical Operating Characteristics (continued)
( Typical Application Circuit with tuning elements outlined in Table 1, V CC = 5.0V, f RF = 3000MHz to 3900MHz, LO is low-side
injected for a 300MHz IF, P RF = -5dBm, P LO = 0dBm, T C = +25°C, unless otherwise noted.)