LTC1069-1CN8 Linear Technology, LTC1069-1CN8 Datasheet - Page 8

• Manufacturer Part Number: LTC1069-1CN8
• Description: IC FILTR 8TH ORDER LOWPASS 8-DIP
• Manufacturer: Linear Technology

Specifications of LTC1069-1CN8

• Filter Type: Elliptic, Lowpass Switched Capacitor
• Frequency - Cutoff Or Center: 12kHz
• Number Of Filters: 1
• Max-order: 8th
• Voltage - Supply: 3.14 V ~ 11 V, ±1.57 V ~ 5.5 V
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

LTC1069-1
APPLICATIONS INFORMATION
Aliasing
Aliasing is an inherent phenomenon of sampled data
systems and it occurs for input frequencies approaching
the sampling frequency. The internal sampling frequency
of the LTC1069-1 is 100 times its cutoff frequency. For
instance, if a 98kHz, 100mV
input of an LTC1069-1 operating with a 100kHz clock, a
2kHz, 28μV
Table 4 shows details.
TYPICAL APPLICATIONS
8
RMS
alias signal will appear at the fi lter output.
RMS
0.1μF
0.47μF
ON
signal is applied at the
V
SHUTDOWN
IN
1
2
3
4
Single 3.3V Supply Operation with Output Buffer
AGND
V
NC
V
Single 5V Operation with Power Shutdown
+
IN
LTC1069-1
0.47μF
5V
V
CLK
CMOS LOGIC
OUT
NC
V
–
0.1μF
8
7
6
5
f
500kHz
CLK
V
IN
3.3V
1
2
3
4
AGND
V
NC
V
Table 4. Aliasing (f
f
+
IN
LTC1069-1
CLK
INPUT FREQUENCY
96
97
98
98.5
99
99.5
/f
3.3V
0V
(V
C
V
= 100:1, f
IN
CLK
OUT
NC
V
(kHz)
= 1V
–
(or 104)
(or 103)
(or 102)
(or 101.5)
(or 101)
(or 100.5)
8
7
6
5
RMS
+
–
1/2 LT1366
V
f
750kHz
CLK
CUTOFF
OUT
)
≤
CLK
= 1kHz
0.1μF
= 100kHz)
1069-1 TA04
(Relative to Input)
OUTPUT LEVEL
5V
0V
10691 TA05
–90.0
–86.0
–71.0
–56.0
–0.21
–1.1
(dB)
V
OUT
OUTPUT FREQUENCY
(Aliased Frequency)
(kHz)
4.0
3.0
2.0
1.5
1.0
0.5
10691fa