LTC1264-7CJ Просмотр технического описания (PDF) - Linear Technology
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LTC1264-7CJ Datasheet PDF : 16 Pages
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LTC1264-7
TYPICAL PERFOR A CE CHARACTERISTICS
Gain vs fCLK
10
0
–10
A. fCLK = 0.5MHz
B. fCLK = 1MHz
C. fCLK = 2MHz
– 20
A
B
C
– 30
– 40
– 50
– 60
– 70
VS = SINGLE 5V
(fCLK/fC) = 50:1
–80 AGND = 2V
TA = 25°C
– 90
10
100
200
FREQUENCY (kHz)
1264-7 G17
Passband Gain vs fCLK
5
4
VS = SINGLE 5V
(fCLK/fC) = 50:1
3 AGND = 2V
TA = 25°C
2
A. fCLK = 0.5MHz
B. fCLK = 1.0MHz
C. fCLK = 1.5MHz
D. fCLK = 2.0MHz
1
0
–1
–2
–3
A
B CD
–4
–5
5
10
FREQUENCY (kHz)
100
1264-7 G18
Maximum Passband vs
Temperature
1.0
0.5
A
0
B
– 0.5
–1.0
–1.5 A. TA = 70°C
B. TA = –40°C
– 2.0
– 2.5
– 3.0
VS = SINGLE 5V
fCLK = 2MHz
–3.5 (fCLK/fC) = 50:1
AGND = 2V
– 4.0
1
10
FREQUENCY (kHz)
50
1264-7 G19
Delay vs fCLK
30
A
25
20
15 B
10 C
D
5
VS = ±7.5V
(fCLK/fC) = 25:1
TA = 25°C
A. fCLK = 1MHz
B. fCLK = 2MHz
C. fCLK = 3MHz
D. fCLK = 4MHz
0
20 40 60 80 100 120 140 160 180 200 220
INPUT FREQUENCY (kHz)
1264-7 G20
Delay vs fCLK
60
A
50
40
30 B
20 C
D
10
VS = ±7.5V
(fCLK/fC) = 50:1
TA = 25°C
A. fCLK = 1MHz
B. fCLK = 2MHz
C. fCLK = 3MHz
D. fCLK = 4MHz
0
10 20 30 40 50 60 70 80 90 100 110
INPUT FREQUENCY (kHz)
1264-7 G21
THD vs Frequency
– 40
– 45
VS = ±5V
VIN = 1VRMS
–50 fCLK = 1MHz
(fCLK/fC) = 25:1
–55 (5 REPRESENTA-
–60 TIVE UNITS)
– 65
– 70
– 75
– 80
– 85
– 90
1
10
FREQUENCY (kHz)
50
1264-7 G22
THD vs Frequency
– 40
– 45
VS = ±7.5V
VIN = 1VRMS
–50 fCLK = 2.5MHz
(fCLK/fC) = 25:1
–55 (5 REPRESENTA-
–60 TIVE UNITS)
– 65
– 70
– 75
– 80
– 85
– 90
1
10
FREQUENCY (kHz)
100
1264-7 G23
THD vs Frequency
– 40
– 45
VS = SINGLE 5V
VIN = 0.5VRMS
–50 fCLK = 500kHz
– 55
(fCLK/fC) = 25:1
AGND = 2V
–60 (5 REPRESENTA-
TIVE UNITS)
– 65
– 70
– 75
– 80
– 85
– 90
1
10
20
FREQUENCY (kHz)
1264-7 G24
THD + Noise vs Input
– 40
– 45
fIN = 1kHz
fCLK = 1MHz
A. VS = ±5V A B
B. VS = ±7.5V
–50 (fCLK/fC) = 25:1
– 55
– 60
– 65
– 70
– 75
– 80
– 85
– 90
0.1
1
INPUT AMPLITUDE (VRMS)
5
1264-7 G25
12647fa
7
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