G(s) = H
參數(shù)資料
型號(hào)： LTC1060CSW#TRPBF
廠商： Linear Technology
文件頁(yè)數(shù)： 2/20頁(yè)
文件大小： 0K
描述： IC FILTER BUILDING BLOCK 20-SOIC
標(biāo)準(zhǔn)包裝： 1,000
濾波器類型： 通用開(kāi)關(guān)電容器
頻率 - 截止或中心： 30kHz
濾波器數(shù)： 2
濾波器階數(shù)： 4th
電源電壓： ±2.37 V ~ 5 V
安裝類型： 表面貼裝
封裝/外殼： 20-SOIC（0.295"，7.50mm 寬）
供應(yīng)商設(shè)備封裝： 20-SOIC
包裝： 帶卷 (TR)
10
LTC1060
1060fb
3. Highpass function: available only in mode 3 at the
ouput Pins 3 (18). (Figure 3.)
G(s) = HOHP
HOHP = gain of the HP output for f→
s2
s2 + s(ωo/Q) + ωo
fCLK
2
4. Notch function: available at Pins 3 (18) for several
modes of operation.
G(s) = (HON2)
HON2 = gain of the notch output for f→
s2 + ω2o
s2 + (sωo/Q) + ωo
fCLK
2
HON1 = gain of the notch output for f→0
fn= ωn/2π;fnisthefrequencyofthenotchoccurrence.
5. Allpass function: available at Pins 3(18) for mode 4, 4a.
G(s) = HOAP
HOAP = gain of the allpass output for 0 <f<
[s2 – s(ωo/Q) + ωo]
s2 + s(ωo/Q) + ωo
fCLK
2
For allpass functions, the center frequency and the Q of
the numerator complex zero pair is the same as the
denominator. Under these conditions, the magnitude
response is a straight line. In mode 5, the center frequency
fz, of the numerator complex zero pair, is different than f0.
For high numerator Q’s, the magnitude response will have
a notch at fz.
Table 3. Modes of Operation: 1st Order Functions
MODE
PIN 2 (19)
PIN 3 (18)
fC
fZ
6a
LP
HP
fCLK
100(50)
R2
R3
6b
LP
fCLK
100(50)
R2
R3
7LP
AP
fCLK
100(50)
R2
R3
fCLK
100(50)
R2
R3
Figure 1
Figure 2
Figure 3
f0
; f0 =
fH – fL
fL
fH
HOBP
0.707 HOBP
f0
fL fH
Q =
–1
20
1 2
2Q
fL = f0
++ 1
( ( ( )
1
2Q
1 2
2Q
fH = f0
++ 1
( ( ( )
BANDPASS OUTPUT
f(LOG SCALE)
GAIN
(V/V)
TLC1060 DFF01
HOP
HOLP
fP
fC
0.707 HOLP
1
2
2Q
fC = f0 1 –
+
+ 1
(
1
2
2Q
1 –
(
LOWPASS OUTPUT
f(LOG SCALE)
GAIN
(V/V)
TLC1060 DFF02
1
2
2Q
1
Q
fP = f0
HOP = HOLP
1 –
1
2
4Q
1 –
fC
1
2
2Q
fC = f0 1 –
++ 1
– 1
1
(
1
2
2Q
1 –
(
f(LOG SCALE)
TLC1060 DFF03
HOP
HOHP
fP
0.707 HOHP
HIGHPASS OUTPUT
GAIN
(V/V)
1
2
2Q
1
Q
fP = f0
HOP = HOHP
1 –
1
2
4Q
1 –
DEFINITION OF FILTER FUNCTIONS
UU
U
ODES OF OPERATIO
UW
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