MAX2112 Просмотр технического описания (PDF) - Maxim Integrated
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MAX2112 Datasheet PDF : 19 Pages
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MAX2112
Complete, Direct-Conversion
Tuner for DVB-S2 Applications
Typical Operating Characteristics
(MAX2112 Evaluation Kit: VCC = +3.3V, TA = +25°C, baseband output frequency = 5MHz; VGC1 = +1.2V, default register settings
except BBG[3:0] = 1011.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
98
97 TA = +85°C
96
95
TA = +25°C
94
93
92
91
TA = -40°C
90
89
88
3.0 3.1 3.2 3.3 3.4 3.5 3.6
SUPPLY VOLTAGE (V)
STANDBY MODE SUPPLY CURRENT
vs. SUPPLY VOLTAGE
3.0
2.9
TA = +85°C
2.8
2.7
TA = +25°C
2.6
2.5
2.4
TA = -40°C
2.3
3.0 3.1 3.2 3.3 3.4 3.5 3.6
SUPPLY VOLTAGE (V)
SUPPLY CURRENT
vs. BASEBAND FILTER CUTOFF FREQUENCY
104
102
100
98
96
94
92
90
88
86
84
4 8 12 16 20 24 28 32 36 40
BASEBAND FILTER CUTOFF FREQUENCY (MHz)
HD3 vs. VOUT
-10
-15
-20
-25
-30
-35
-40
-45
-50
-55
-60
1.0 1.5 2.0 2.5 3.0 3.5
VOUT (VP-P)
QUADRATURE PHASE
vs. BASEBAND FREQUENCY
93.5
fLO = 925MHz
92.5
TA = +85°C
91.5
90.5
89.5
TA = +25°C TA = -40°C
88.5
87.5
86.5
0
4
8
12
16
20
BASEBAND FREQUENCY (MHz)
QUADRATURE PHASE vs. LO FREQUENCY
93.5
fBASEBAND = 10MHz
92.5
TA = +25°C
91.5
TA = +85°C
90.5
89.5
88.5
TA = -40°C
87.5
86.5
900
1200 1500 1800 2100 2400
LO FREQUENCY (MHz)
QUADRATURE MAGNITUDE MATCHING
vs. BASEBAND FREQUENCY
1.0
fLO = 925MHz
0.8
0.6
0.4
TA = +85°C
0.2
0
-0.2
-0.4
-0.6
TA = +25°C TA = -40°C
-0.8
-1.0
0
4
8
12
16
20
BASEBAND FREQUENCY (MHz)
QUADRATURE MAGNITUDE MATCHING
vs. LO FREQUENCY
1.0
fBASEBAND = 10MHz
0.8
0.6
TA = +25°C
0.4
0.2
0
-0.2
-0.4
TA = -40°C
-0.6
TA = +85°C
-0.8
-1.0
900
1200 1500 1800 2100 2400
LO FREQUENCY (MHz)
BASEBAND FILTER
FREQUENCY RESPONSE
0
-10
-20
-30
-40
-50
-60
-70
-80
0
20
40
60
80
BASEBAND FREQUENCY (MHz)
Maxim Integrated
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