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參數(shù)資料
| 型號(hào)： | LTC1164CSW#PBF |
| 廠商： | Linear Technology |
| 文件頁(yè)數(shù)： | 16/16頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC FILTER BUILDING BLOCK 24-SOIC |
| 標(biāo)準(zhǔn)包裝： | 32 |
| 濾波器類型： | 通用開關(guān)電容器 |
| 頻率 - 截止或中心： | 20kHz |
| 濾波器數(shù)： | 4 |
| 濾波器階數(shù)： | 8th |
| 電源電壓： | ±2.37 V ~ 8 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 24-SOIC |
| 包裝： | 管件 |
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LTC1164
9
1164fa
3. Offset Nulling
Lowpass filters may have too much DC offset for some
users. A servo circuit may be used to actively null the
offsets of the LTC1164 or any LTC switched capacitor
filter. The circuit shown in Figure 5 will null offsets to better
than 300V. This circuit takes seconds to settle because of
the integrator pole frequency.
Figure 4. Buffering the Output of a 4th Order Bandpass Realization
4. Noise
All the noise performance mentioned excludes the clock
feedthrough. Noise measurements will degrade if the
already described grounding, bypassing, and buffering
techniques are not practiced. The Wideband Noise vs Q
curve shown in the Typical Performance Characteristics
Section is a very good representation of the noise
performance of this device.
Figure 5. Servo Amplifier
PRIMARY MODES
Mode 1
In Mode 1, the ratio of the external clock frequency to the
center frequency of each 2nd order section is internally
fixed at 50:1 or 100:1. Figure 6 illustrates Mode 1 provid-
ing 2nd order notch, lowpass, and bandpass outputs.
Mode 1 can be used to make high order Butterworth
Iowpass filters; it can also be used to make low Q notches
and for cascading 2nd order bandpass functions tuned at
the same center frequency with unity gain. Mode 1 is faster
than Mode 3. Note that Mode 1 can only be implemented
with 3 of the 4 LTC1164 sections because section D has no
externally available summing node. Section D, however,
can be internally connected in Mode 1 upon special
request.
Figure 6. Mode 1: 2nd Order Filter Providing Notch,
Bandpass, Lowpass
APPLICATIO S I FOR ATIO
WU
UU
LTC1164 AI03
R3
100k
TO FILTER
FIRST SUMMING
NODE
C2
0.1F
C1
0.1F
R1
1M
FROM
FILTER
OUTPUT
R2
1M
C1 = C2 = LOW LEAKAGE FILM (I.E. POLYPROPYLENE)
R1 = R2 = METAL FILM 1%
–
+
LT1012
ODES OF OPERATIO
U
W
LTC1164 MOO01
R3
R2
NS
BP
LP
R1
AGND
1/4 LTC1164
fo =
Q =
; fn = fO; HOLP = –
; HOBP = –
; HON1 = –
fCLK
100(50)
–
+
–
Σ
∫
VIN
R2
R1
R2
R1
R3
R2
R3
R1
LTC1164 AI02
0.1F
R11
V + TRACE FOR FILTER
R21
R3
R22
R12
R32
1k
LTC1164
NEGATIVE
SUPPLY
POSITIVE
SUPPLY
4
7
19
–
+
VIN
0.1F
SEPARATE V+ POWER SUPPLY TRACE FOR BUFFER
0.1F
1F TA
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| LTC1164CSW | IC FILTER BUILDING BLOCK 24-SOIC |
| LTC1064CSW | IC FILTR BUILDNG BLK QUAD 24SOIC |
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| LTC6603CUF#TRPBF | IC FILTER LOWPASS 24-QFN |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1164M | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Low Power, Low Noise, Quad Universal Filter Building Block |
| LTC1164MJ | 制造商:Linear Technology 功能描述:Active Filter Quad SW-CAP UNIV 8th Order 20kHz 24-Pin CDIP |
| LTC1164MJ/883 | 制造商:Linear Technology 功能描述:Active Filter Quad SW-CAP UNIV 8th Order 20kHz 24-Pin CDIP |
| LTC1165 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Triple 1.8V to 6V High-Side MOSFET Drivers |
| LTC1165C | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Triple 1.8V to 6V High-Side MOSFET Drivers |
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