Owner manual

MAX19995A
Dual, SiGe, High-Linearity, 1700MHz to 2200MHz
Downconversion Mixer with LO Buffer/Switch
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RF PORT RETURN LOSS
vs. RF FREQUENCY
RF FREQUENCY (MHz)
RF PORT RETURN LOSS (dB)
2100 2200200019001800
20
10
0
30
15
5
25
1700
MAX19995A toc37
P
LO
= -3dBm, 0dBm, +3dBm
f
IF
= 350MHz
IF PORT RETURN LOSS
vs. IF FREQUENCY
IF FREQUENCY (MHz)
IF PORT RETURN LOSS (dB)
410 500320230140
10
0
20
15
5
50
MAX19995A toc38
L = 120nH
L = 330nH
L = 470nH
L = L1, L2, L4, L5
f
LO
= 2300MHz
V
CC
= 4.75V, 5.0V, 5.25V
LO SELECTED RETURN LOSS
vs. LO FREQUENCY
LO FREQUENCY (MHz)
LO SELECTED RETURN LOSS (dB)
2550 2750235021501950
20
10
0
30
15
5
25
1750
MAX19995A toc39
P
LO
= -3dBm, 0dBm, +3dBm
LO UNSELECTED RETURN LOSS
vs. LO FREQUENCY
LO FREQUENCY (MHz)
LO UNSELECTED RETURN LOSS (dB)
2550 2750235021501950
20
10
0
30
15
5
25
1750
MAX19995A toc40
P
LO
= -3dBm, 0dBm, +3dBm
SUPPLY CURRENT vs. TEMPERATURE (T
C
)
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
65 8525 455-15
340
360
400
300
380
320
-35
MAX19995A toc41
V
CC
= 4.75V
V
CC
= 5.25V
V
CC
= 5.0V
CONVERSION GAIN vs. RF FREQUENCY
(VARIOUS VALUES OF L3 AND L6)
RF FREQUENCY (MHz)
CONVERSION GAIN (dB)
22002000 210019001800
8
9
11
6
10
7
1700
MAX19995A toc42
0
Ω
, 3.6nH, 6.8nH, 10nH
INPUT IP3 vs. RF FREQUENCY
(VARIOUS VALUES OF L3 AND L6)
RF FREQUENCY (MHz)
INPUT IP3 (dBm)
22002000 210019001800
24
26
22
25
23
1700
MAX19995A toc43
0
Ω
, 3.6nH, 6.8nH, 10nH
P
RF
= -5dBm/TONE
2LO-2RF RESPONSE vs. RF FREQUENCY
(VARIOUS VALUES OF L3 AND L6)
RF FREQUENCY (MHz)
2LO-2RF RESPONSE (dBc)
22002000 210019001800
70
90
40
80
60
50
1700
MAX19995A toc44
0
Ω
3.6nH
6.8nH, 10nH
P
RF
= -5dBm
3LO-3RF RESPONSE vs. RF FREQUENCY
(VARIOUS VALUES OF L3 AND L6)
RF FREQUENCY (MHz)
3LO-3RF RESPONSE (dBc)
22002000 210019001800
65
85
55
75
1700
MAX19995A toc45
0Ω, 3.6nH, 6.8nH, 10nH
P
RF
= -5dBm
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.)