MAX3510(1999) データシートの表示（PDF） - Maxim Integrated
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MAX3510 Datasheet PDF : 12 Pages
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Upstream CATV Amplifier
Typical Operating Characteristics (continued)
(VCC = +5V, VIN = +34dBmV, TXEN = SHDN = high, fIN = 20MHz, ZLOAD = 75Ω through a 2:1 transformer, TA = +25°C, unless
otherwise noted.)
VOLTAGE GAIN vs. GAIN CONTROL WORD
30
28
26
f = 40MHz
24
f = 5MHz
22
20
f = 60MHz
GAIN STEP vs. GAIN CONTROL WORD
1.25
1.15
1.05
0.95
OUTPUT IMPEDANCE
(75Ω REFERENCE)
MAX3510 toc10
5MHz
TRANSMIT-DISABLE
MODE
TRANSMIT
MODE
18
0.85
16
65MHz
14
48 50 52 54 56 58 60 62 64
GAIN CONTROL WORD (DECIMAL)
0.75
0
6 12 18 24 30 36 42 48 54 60
GAIN CONTROL WORD (DECIMAL)
OUTPUT RETURN LOSS vs. FREQUENCY
0
TRANSMIT OUTPUT NOISE vs. GAIN
-20
POWER-UP/POWER-DOWN
TRANSIENTS vs. OUTPUT LEVEL
100
4
-25
TRANSMIT
-30
10
8
MODE
TRANSMIT-DISABLE
-35
MODE
12
-40
1
16
-45
20
5 15 25 35 45 55 65 75 85 95 105
FREQUENCY (MHz)
-50
-33 -27 -21 -15 -9 -3 3 9 15 21 27
GAIN (dB)
0.1
0
10 20 30 40 50 60
OUTPUT LEVEL (dBmV)
2nd HARMONIC DISTORTION vs.
INPUT FREQUENCY AND OUTPUT LEVEL
-40
-45
VOUT = 60dBmV
-50 VOUT = 57dBmV
-55
-60
VOUT = 6dBmV
-65
VOUT = 30dBmV
-70
-75
-80
0
10 20 30 40 50 60 70
FREQUENCY (MHz)
3rd HARMONIC DISTORTION vs.
INPUT FREQUENCY
-35
-40
-45
VOUT = 60dBmV
-50
VOUT = 54dBmV
-55
-60
VOUT = 48dBmV
-65
VOUT = 24dBmV
-70
VOUT = 6dBmV
-75
0
10 20 30 40 50 60 70
INPUT FREQUENCY (MHz)
_______________________________________________________________________________________ 5
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