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LTC1069-1CS8 数据表(PDF) 3 Page - Linear Technology

部件名 LTC1069-1CS8
功能描述  Low Power, 8th Order Progressive Elliptic, Lowpass Filter
PDF  8 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC1069-1CS8 数据表(HTML) 3 Page - Linear Technology

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LTC1069-1
ELECTRICAL CHARACTERISTICS
fCUTOFF is the filter’s cutoff frequency and is equal to fCLK/100. The fCLK signal level is TTL or CMOS (clock rise or fall time ≤ 1µs),
VS = 3.3V to ±5V, RL = 10k, TA = 25°C, unless otherwise noted. All AC gains are measured relative to the passband gain.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Gain at 1.50fCUTOFF
VS = ±5V,
fCLK = 500kHz
– 58
– 53
– 50
dB
fTEST = 7.5kHz,
VIN = 1VRMS
q
–59
– 49
dB
VS = 3.3V,
fCLK = 200kHz
– 58
– 53
– 50
dB
fTEST = 3kHz,
VIN = 0.5VRMS
q
–59
– 49
dB
Output DC Offset (Input at AGND)
VS = ±5V,
fCLK = 500kHz
30
150
mV
VS = 4.75V,
fCLK = 400kHz
20
mV
VS = 3.3V,
fCLK = 200kHz
15
100
mV
Output Voltage Swing
VS = ±5V
q
– 3.25
±4.0
3.25
V
VS = 4.75V
q
– 1.50
±1.7
1.25
V
VS = 3.3V
q
– 0.70
±0.9
0.60
V
Power Supply Current
VS = ±5V
fCLK = 500kHz
q
3.8
5.5
mA
VS = 4.75V
fCLK = 400kHz
q
2.5
4.5
mA
VS = 3.3VfCLK = 200kHz
q
2.0
3.5
mA
Maximum Clock Frequency
VS = ±5V
1.2
MHz
VS = 4.75V
0.8
MHz
VS = 3.3V
0.5
MHz
Input Frequency Range
0fCLK/2
MHz
Input Resistance
30
43
70
k
Ω
Operating Power Supply Voltage
±1.57
±5.5
V
The q denotes specificatons which apply over the full operating
temperature range.
FREQUENCY (kHz)
0.5
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
1.5
2.5 3.0
5.0
1069-1 G01
1.0
2.0
3.5 4.0 4.5
VS = ±5V
fCLK = 500kHz
fC = 5kHz
VIN = 2VRMS
FREQUENCY (kHz)
11 12 13 14
15 16 17 18
19 20 21
–70
–72
–74
–76
–78
–80
–82
–84
–86
–88
–90
1069-1 G03
VS = ±5V
fCLK = 500kHz
fC = 5kHz
VIN = 2VRMS
FREQUENCY (kHz)
56
78
910
11
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
1069-1 G02
VS = ±5V
fCLK = 500kHz
fC = 5kHz
VIN = 2VRMS
Passband Gain vs Frequency
Transition Band Gain vs
Frequency
Stopband Gain vs Frequency
TYPICAL PERFORMANCE CHARACTERISTICS



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