MAX2120CTI 데이터 시트보기 (PDF) - Maxim Integrated
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MAX2120CTI Datasheet PDF : 21 Pages
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Complete, Direct-Conversion Tuner for DVB-S
and Free-to-Air Applications
Typical Operating Characteristics (continued)
(MAX2120 Evaluation Kit: VCC = +3.3V, baseband output frequency = 5MHz; VGC1 = 1.2V; TA = +25°C. Default register settings
except BBG[3:0] = 1011.)
NOISE FIGURE vs. INPUT POWER
70
ADJUST BBG[3:0] FOR 1VP-P
60
BASEBAND OUTPUT WITH
PIN = -75dBm AND VGC1 = 0.5V
50 fLO = 1500MHz
40
30
20
10
0
-80 -70 -60 -50 -40 -30 -20 -10 0
INPUT POWER (dBm)
OUT-OF-BAND IIP3 vs. INPUT POWER
30
SEE NOTE 4 ON PAGE 4 FOR CONDITIONS
20
10
0
-10
-20
-30
-80 -70 -60 -50 -40 -30 -20 -10 0
INPUT POWER (dBm)
IN-BAND IIP3 vs. INPUT POWER
30
SEE NOTE 3 ON PAGE 4 FOR CONDITIONS
20
10
0
-10
-20
-30
-40
-50
-60
-80 -70 -60 -50 -40 -30 -20 -10 0
INPUT POWER (dBm)
IIP2 vs. INPUT POWER
60
SEE NOTE 5 ON PAGE 4 FOR CONDITIONS
50
40
30
20
10
0
-10
-80 -70 -60 -50 -40 -30 -20 -10 0
INPUT POWER (dBm)
INPUT RETURN LOSS vs. FREQUENCY
0
-5
-10
VGC1 = 0.5V
-15
-20
-25
900
VGC1 = 2.7V
1125 1350 1575 1800 2025 2250
FREQUENCY (MHz)
PHASE NOISE AT 10kHz OFFSET
vs. CHANNEL FREQUENCY
-70
-72
-74
-76
-78
-80
-82
-84
-86
-88
-90
925 1115 1305 1495 1685 1875 2065 2255
CHANNEL FREQUENCY (MHz)
_______________________________________________________________________________________ 7
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