MAX2411 查看數據表（PDF） - Maxim Integrated
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MAX2411 Datasheet PDF : 14 Pages
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Low-Cost RF Up/Downconverter
with LNA and PA Driver
_____________________________Typical Operating Characteristics (continued)
(MAX2411A EV kit, VCC = +3.0V, VGC = +2.15V, RXEN = TXEN = low, all measurements performed in 50Ω environment, fLO = 1.5GHz,
PLO = -10dBm, fLNAIN = fPADRIN = fRXMXIN = 1.9GHz, PLNAIN = -32dBm, PPADRIN = PRXMXIN = -22dBm, fIF, IF = 400MHz,
PIF = -32dBm (Note 1), all impedance measurements made directly to pin (no matching network), TA = +25°C, unless otherwise noted.)
LNA NOISE FIGURE vs. FREQUENCY
5.0
4.5 RXEN = VCC
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
100
480 860 1240 1620 2000
FREQUENCY (MHz)
PA DRIVER OUTPUT IMPEDANCE
vs. FREQUENCY
200
TXEN = VCC
175
50 MAX2411A-13
0
150
IMAGINARY
-50
125
-100
100
-150
75
-200
50
-250
REAL
25
-300
0
0 0.5 1.0 1.5 2.0 2.5
FREQUENCY (GHz)
PA DRIVER OUTPUT IP3
vs. TEMPERATURE
21
TXEN = VCC
20
VCC = 5.5V
19
-350
3.0
18
VCC = 4.0V
17
VCC = 3.0V
16
VCC = 2.7V
15
14
-40 -20
0 20 40 60
TEMPERATURE (°C)
80 100
LNA OUTPUT 1dB COMPRESSION POINT
vs. SUPPLY VOLTAGE
0
RXEN = VCC
-1
-2
-3
-4
-5
-6
2.7
3.2 3.7 4.2 4.7 5.2
SUPPLY VOLTAGE (V)
PA DRIVER GAIN vs. FREQUENCY
30
USING EV KIT
MATCHING NETWORK
25 (OPTIMIZED FOR 1.9GHz)
20 TXEN = VCC
15
10
5
0
0 0.5 1.0 1.5 2.0 2.5 3.0
FREQUENCY (GHz)
PA DRIVER GAIN vs. TEMPERATURE
18
TXEN = VCC
17
16
VCC = 5.5V
VCC = 4.0V
15
14
VCC = 2.7V
VCC = 3.0V
13
12
-40 -15 10
35
60
85
TEMPERATURE (°C)
PA DRIVER INPUT IMPEDANCE
vs. FREQUENCY
160
70 MAX2411A-12
TXEN = VCC
140
30
120
IMAGINARY
-10
100
-50
80
-90
60
-130
40
REAL
-170
20
-210
0
-250
0 0.5 1.0 1.5 2.0 2.5 3.0
FREQUENCY (GHz)
PA DRIVER GAIN AND OUTPUT IP3
vs. GC VOLTAGE
20
TXEN = VCC
15
10
IP3
5
0
GAIN
-5
-10
-15
-20
-25
-30
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2
GC VOLTAGE (V)
PA DRIVER OUTPUT 1dB COMPRESSION
vs. SUPPLY VOLTAGE
8
6
VGC = 2.15V
4
TXEN = VCC
2
0
-2
VGC = 1.0V
-4
2.7 3.2 3.7 4.2 4.7 5.2 5.7
SUPPLY VOLTAGE (V)
_______________________________________________________________________________________ 5
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