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.)
UHF MODE NOISE FIGURE
vs. VOLTAGE GAIN
30
25
TA = +85°C
TA = +55°C
20
15 TA = +25°C
TA = -40°C
10
5
fRF = 620MHz
BB_AGC = 2.85V
0
60 65 70 75 80 85 90
VOLTAGE GAIN (dB)
NORMALIZED BASEBAND FREQUENCY
RESPONSE
5
0
-5
-10 TA = 0°C TA = +25°C TA = +85°C
-15
-20
-25
-30
-35
-40
BB_BW<3:0> = "1011"
-45 8MHz CHANNEL MODE
-50
0
1
2
3
4
5
FREQUENCY (MHz)
VOLTAGE GAIN
vs. BB_AGC CONTROL VOLTAGE
110
100 RF_AGC = 2.85V
90
TA = -40°C
80
70
60
TA = +25°C, +55°C
50
40
TA = +85°C
30
20
10
0 0.5 1.0 1.5 2.0 2.5 3.0
BB_AGC CONTROL VOLTAGE (V)
NORMALIZED BASEBAND FREQUENCY
RESPONSE
5
0
-5
-10 TA = 0°C TA = +25°C
-15
TA = +85°C
-20
-25
-30
-35
-40
-45
BB_BW<3:0> = "1001"
7MHz CHANNEL MODE
-50
0
1
2
3
4
5
FREQUENCY (MHz)
NORMALIZED BASEBAND FREQUENCY
RESPONSE
5
0
BB_BW <3:0> = "1001"
7MHz CHANNEL MODE
-5
-10
-15
TA = +25°C
-20
TA = +85°C
-25
TA = 0°C
-30
-35
-40
-45
0
5
10
15
20
25
FREQUENCY (MHz)
BASEBAND FILTER REJECTION RATIO
0
-10
-20
-30
-40
-50
UHF INPUT
-60
-70
VHF INPUT
-80
-90
NOISE LIMITED
-100
0
5
10
15
20
FREQUENCY (MHz)
NORMALIZED BASEBAND FREQUENCY
RESPONSE
5
BB_BW<3:0> = "1011"
0
8MHz CHANNEL MODE
-5
-10
-15
-20
TA = +85°C
-25
TA = 0°C
-30
-35
-40
-45
-50
0
TA = +25°C
5
10
15
20
25
FREQUENCY (Hz)
8 _______________________________________________________________________________________
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