Datasheet

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
0Ω, 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
0Ω, 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
0Ω
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.)