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參數(shù)資料
| 型號： | LTC1064CN#PBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 19/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC FILTER BUILDNG BLK QUAD 24DIP |
| 標準包裝： | 15 |
| 濾波器類型： | 通用開關(guān)電容器 |
| 頻率 - 截止或中心： | 140kHz |
| 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： | 通孔 |
| 封裝/外殼： | 24-DIP（0.300"，7.62mm） |
| 供應商設(shè)備封裝： | 24-PDIP |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 1324 (CN2011-ZH PDF) |
LTC1064
8
1064fb
–
+
∫
LP
1064 F05
+ Σ
AGND
1/4 LTC1064
NS
–
R1
R2
VIN
R3
fO =
; fn = fO; HOLP = –
; HOBP = –
; HON1 = –
; Q =
fCLK
100(50)
R2
R1
R3
R1
R3
R2
R1
BP
C2
0.1
F
C1
0.1
F
R1
1M
R2
1M
1064 F04
TO FILTER
FIRST SUMMING
NODE
C1 = C2 = LOW LEAKAGE FILM
(I.E., POLYPROPYLENE)
R1 = R2 = METAL FILM 1%
FROM
FILTER OUTPUT
R3
100k
–
+
LT1012
7
19
R21
R11
R31
4
7
LTC1064
0.1
F
1
F
VOUT
1064 F03
10k
R32
R22
R12
0.1
F
V+ TRACE FOR FILTER
0.1
F
VIN
–
+
10k
LT
318
LT1007
LT1056
NEGATIVE
SUPPLY
POSITIVE
SUPPLY
SEPARATE V+ POWER SUPPLY TRACE FOR BUFFER
1
F
0.1
F
+
APPLICATIONS INFORMATION
WU
U
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 LTC1064 or any LTC switched-capacitor
filter. The circuit shown in Figure 4 will null offsets to better
than 300
V. This circuit takes seconds to settle because of
the integrator pole frequency.
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 graph Wideband Noise
vs Q in the Typical Performance Characteristics section is
a very good representation of the noise performance of
this device.
Figure 3. Buffering the Output of a 4th Order Bandpass Realization
Figure 4. 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 5 illustrates Mode 1 provid-
ing 2nd order notch, lowpass and bandpass outputs.
Mode 1 can be used to make high order Butterworth
lowpass 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 three of the four LTC1064 sections because Section
D has no externally available summing node. Section D,
however, can be internally connected in Mode 1 upon
special request.
ODES OF OPERATIO
U
W
Figure 5. Mode 1: 2nd Order Filter Providing Notch,
Bandpass and Lowpass
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1064CS | 制造商:Linear Technology 功能描述:QUAD SWITCHED CAPACITOR FILTER, RESISTOR PROGRAMMABLE, UNIVERSAL, PDSO24 |
| LTC1064CSW | 功能描述:IC FILTR BUILDNG BLK QUAD 24SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1,000 系列:- 濾波器類型:連續(xù)時間，帶通低通 頻率 - 截止或中心:150kHz 濾波器數(shù):4 濾波器階數(shù):8th 電源電壓:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) |
| LTC1064-CSW | 制造商:LINEAR TECH 功能描述:_ |
| LTC1064CSW#PBF | 功能描述:IC FILTR BUILDNG BLK QUAD 24SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1,000 系列:- 濾波器類型:連續(xù)時間，帶通低通 頻率 - 截止或中心:150kHz 濾波器數(shù):4 濾波器階數(shù):8th 電源電壓:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) |
| LTC1064CSW#PBF | 制造商:Linear Technology 功能描述:FILTER, LOW PASS, 50KHZ, SOIC-24 |
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