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參數(shù)資料
| 型號： | LT5514EFE |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | Ultralow Distortion IF Amplifier/ADC Driver with Digitally Controlled Gain |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO20 |
| 封裝： | 4.40 MM, PLASTIC, TSSOP-20 |
| 文件頁數(shù)： | 10/20頁 |
| 文件大小： | 275K |
| 代理商： | LT5514EFE |
10
LT5514
5514f
TYPICAL PERFOR U
ENA = 3V, ENB = 0.6V or ENA = 0.6V, ENB = 3V, control input levels V
IL
= 0.6V, V
IH
= 3V unless otherwise noted. (Test circuit shown in
Figure 10)
Total I
CC
vs V
CC
Single-Ended Output Current
vs Attenuation Step
(Low Power Mode) T
A
= 25
°
C, V
CC
= 5V, V
CCO
= 5V,
V
IN(BIAS)
vs Attenuation Step
Noise Figure vs Frequency
Harmonic Distortion vs P
OUT
at
50MHz, Max Gain, R
OUT
= 200
OIP3 vs Frequency at Pin = –23dBm,
Max Gain and 1.5dB Attenuation
Step, R
OUT
= 200
FREQUENCY (MHz)
0
O
42
45
48
200
5514 G34
39
36
30
50
100
150
33
54
51
1.5dB
ATTENUATION
STEP
MAX GAIN
P
OUT
(dBm)
–6
H
–80
–85
–50
–55
–45
–40
0
6
9
5514 G35
–90
–95
–60
–65
–70
–75
–100
–3
3
12
15
HD2
HD3
HD4
HD5
FREQUENCY (MHz)
0
7.0
N
7.5
8.0
8.5
9.0
100
200
300
400
5514 G36
9.5
10.0
50
150
250
350
MAX GAIN
1.5dB ATTENUATION STEP
(PGA0 = LOW)
3dB ATTENUATION STEP
(PGA1 = LOW)
NF vs Attenuation Step at
Freq = 100MHz
ATTENUATION STEP (dB)
0
N
18
24
30
15
5514 G37
12
6
15
21
27
9
3
0
3
6
9
12
18
21
Output Noise Floor vs Attenuation
Step, Freq = 100MHz, R
OUT
= 200
ATTENUATION STEP (dB)
0
–142
N
–141
–140
–139
–138
–136
3
6
9
12
5514 G38
18
15
21
–137
PGA1 = HIGH
PGA1 = LOW
Pulse Response vs Output Level at
Max Gain. Indicated Voltage Levels
are into 50
External Load
2ns/DIV
5514 G39
2V
P-P
1.5V
P-P
1V
P-P
INPUTS
C
OUT
= 0.82pF
ATTENUATION STEP (dB)
0
65
C
68
70
73
75
80
3
6
9
12
5514 G40
15
18
21
78
85
°
C
25
°
C
–40
°
C
ATTENUATION STEP (dB)
0
19.0
C
20.0
19.5
20.5
21.0
3
6
9
12
5514 G41
15
18
21
85
°
C
25
°
C
–40
°
C
ATTENUATION STEP (dB)
0
1.40
V
I
1.50
1.45
1.55
1.60
3
6
9
12
5514 G42
15
18
21
85
°
C
25
°
C
–40
°
C
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