Instruction Manual

MAX2406
Low-Cost Downconverter
with Low-Noise Amplifier
4 _______________________________________________________________________________________
____________________________Typical Operating Characteristics (continued)
(MAX2406EVKIT, Rev. B, V
CC
= 3.3V, RXEN = V
CC
, ƒ
LO
= 1.5GHz, ƒ
LNAIN
= ƒ
RXMXIN
= 1.9GHz, P
LNAIN
= -30dBm,
P
RXMXIN
= -21.5dBm, P
LO
= -10dBm, differential IF operation, 50Ω system, T
A
= +25°C, unless otherwise noted.)
0
100
50
200
150
250
300
-350
-250
-300
-150
-200
-100
-50
0 1000 1500500 2000 2500 3000
RX MIXER INPUT IMPEDANCE
vs. FREQUENCY
MAX2406-10
FREQUENCY (MHz)
REAL IMPEDANCE (Ω)
IMAGINARY IMPEDANCE (Ω)
REAL
MEASURED AT
DEVICE PIN
IMAGINARY
-10
-5
0
5
10
15
20
0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 3.3
MIXER GAIN vs. FREQUENCY
MAX2406-11
FREQUENCY (GHz)
GAIN (dB)
900MHz
NARROW-
BAND
MATCH
2.4GHz
NARROW-
BAND
MATCH
3GHz
NARROW-
BAND
MATCH
1.9GHz EV KIT MATCH
5
7
11
9
13
15
-40 10-15 35 60 85
MIXER GAIN vs. TEMPERATURE
MAX2406-12
TEMPERATURE (°C)
GAIN (dB)
V
CC
= 5.5V
V
CC
= 4.0V
V
CC
= 2.7V, 3.0V
3
4
5
6
7
-40 10-15 35 60 85
MIXER INPUT IP3 vs. TEMPERATURE
MAX2406-13
TEMPERATURE (°C)
INPUT IP3 (dBm)
V
CC
= 5.5V
V
CC
= 3.0V
V
CC
= 2.7V
0
3
2
1
4
5
6
7
8
9
10
2.5 3.53.0 4.0 4.5 5.0 5.5
LNA AND MIXER NOISE FIGURE
vs. SUPPLY VOLTAGE
MAX2406-16
SUPPLY VOLTAGE (V)
NOISE FIGURE (dB)
MIXER
LNA
5.0
6.0
5.5
7.0
6.5
8.0
7.5
8.5
9.5
9.0
10.0
-18 -14 -12 -10-16 -8 -6 -4 -2 0
MIXER GAIN vs. LO POWER
MAX2406-14
LO POWER (dBm)
GAIN (dB)
V
CC
= 3.0V
5
7
11
9
13
15
-18 -14 -12-16 -10 -8 -6 -4 0
MIXER NOISE FIGURE vs. LO POWER
MAX2406-15
LO POWER (dBm)
NOISE FIGURE (dB)
V
CC
= 3.0V
30
20
25
10
15
5
0
0 1000 1500500 2000 2500 3000
LO PORT RETURN LOSS
vs. FREQUENCY
MAX2406-17
FREQUENCY (MHz)
RETURN LOSS (dB)
MEASURED ON EV KIT
WITH 220pF SERIES C
AT LO PORT
0
200
100
400
300
600
500
700
-700
-500
-600
-300
-400
-100
-200
0
0 400200 600 800 1000
IF OUTPUT IMPEDANCE (SINGLE ENDED)
vs. FREQUENCY
MAX2406-18
FREQUENCY (MHz)
REAL IMPEDANCE (Ω)
IMAGINARY IMPEDANCE (Ω)
IF TIED TO V
CC
IMAGINARY
MEASURED AT
DEVICE PIN
REAL