MAX3580(2006) 데이터 시트보기 (PDF) - Maxim Integrated
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MAX3580 Datasheet PDF : 21 Pages
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Direct-Conversion TV Tuner
Typical Operating Characteristics (continued)
(Typical values are at VCC = +3.3V, TA = +25°C, unless otherwise noted.)
STOPBAND NOISE vs. FREQUENCY
-45
VHF MODE NOISE FIGURE
vs. BB_AGC VOLTAGE
30
220MHz
25
RF_AGC = 2.85V
UHF MODE NOISE FIGURE
vs. BB_AGC VOLTAGE
30
620MHz
25
RF_AGC = 2.85V
-55
BB_BW <3:0> = "1011"
8MHz CHANNEL MODE
-65
BB_BW <3:0> = "1001"
7MHz CHANNEL MODE
-75
0
10
20
30
40
50
FREQUENCY (MHz)
20
TA = +55°C
15
TA = +85°C
10
5
TA = -40°C
TA = +25°C
0
0 0.5 1.0 1.5 2.0 2.5 3.0
BB_AGC VOLTAGE (V)
20
15
TA = +55°C
TA = +85°C
10
5
TA = -40°C
TA = +25°C
0
0 0.5 1.0 1.5 2.0 2.5 3.0
BB_AGC VOLTAGE (V)
RF PORT-TO-PORT ISOLATION
40
35
30
25
RFIN2 TO RFIN
20
15
RFIN TO RFIN2
10
5
0
100 200 300 400 500 600 700 800 900 1000
FREQUENCY (MHz)
POWER-DETECTOR OUTPUT VOLTAGE
vs. RF INPUT POWER
4
10kΩ PULLUP TO 3.0V
3
2 "000"
"111"
1
0
-60 -50 -40 -30 -20 -10 0
RF INPUT POWER (dBm)
RF INPUT RETURN LOSS
vs. UHF FREQUENCY
0
Zo = 75Ω
-5
-10
-15
450 525 600 675 750 825 900
UHF FREQUENCY (MHz)
RF INPUT RETURN LOSS
vs. VHF FREQUENCY
0
Zo = 75Ω
-5
-10
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
200
TA = +25°C
TA = 0°C
195
TA = -40°C
-15
-20
150
175
200
225
250
VHF FREQUENCY (MHz)
190
TA = +85°C
TA = +55°C
185
3.0 3.1 3.2 3.3 3.4 3.5 3.6
VCC (V)
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