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參數(shù)資料
| 型號： | LTC1067CGN#TRPBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 3/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC FILTR BLDNGBLK R-R DUAL16SSOP |
| 標準包裝： | 2,500 |
| 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)： | 2 |
| 濾波器階數(shù)： | 4th |
| 電源電壓： | 3 V ~ 11 V，±3 V ~ 5.5 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SSOP（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SSOP |
| 包裝： | 帶卷 (TR) |
11
LTC1067/LTC1067-50
ODES OF OPERATIO
U
W
Mode 3a
This is an extension of Mode 3 where the highpass and
lowpass outputs are summed through two external resis-
tors, RH and RL, to create a notch (see Figure 7). Mode 3a
is more versatile than Mode 2 because the notch fre-
quency can be higher or lower than the center frequency
of the 2nd order section. The external op amp of Figure 7
is not always required. When cascading the sections of the
LTC1067, the highpass and lowpass outputs can be
summed directly into the inverting input of the next
section.
Please refer to the Operating Limits paragraph under Appli-
cations Information for a guide to the use of capacitor CC.
Figure 7. Mode 3a, 2nd Order Filter Providing a Highpass Notch or Lowpass Notch Output
Mode 2n
This mode extends the circuit topology of Mode 3a to
Mode 2 (Figure 8) where the highpass-notch and lowpass
outputs are summed through two external resistors, RH
and RL, to create a lowpass output with a notch higher in
frequency than the notch in Mode 2. This mode, shown in
Figure 8, is most useful in lowpass elliptic designs. When
cascading the sections of the LTC1067, the highpass-
notch and lowpass outputs can be summed directly into
the inverting input of the next section.
Please refer to the Operating Limits paragraph under Appli-
cations Information for a guide to the use of capacitor CC.
Figure 8. Mode 2n, 2nd Order Filter Providing a Lowpass Notch Output
–
+
Σ
∫
AGND
R1
HP
BP
LP
VIN
1067 F07
+
–
S
R2
R3
R4
CC
–
+
EXTERNAL OP AMP OR INPUT OP
AMP OF THE LTC1067, SIDES A OR B
HIGHPASS
OR LOWPASS
NOTCH OUTPUT
RG
RL
RH
R2
R1
( )
RG
RH
()
fO =
; fn =
HOHPn (f = ∞) =
; HOLPn (f = 0) =
fCLK
RATIO
fCLK
RATIO
√RH
RL
√R2
R4
Q = 1.005
R3
R2
√R2
R4
( )
R4
R1
( )
RG
RL
()
NOTE: RATIO = 100 FOR LTC1067
= 50 FOR LTC1067-50
R3
(RATIO)(0.32)(R4)
(
)
1
1 –
–
+
Σ
∫
AGND
R1
HP
BP
LP
VIN
1067 F08
+
–
S
R2
R3
R4
CC
–
+
EXTERNAL OP AMP OR INPUT OP AMP
OF THE LTC1067, SIDES A OR B
LOWPASS
NOTCH
OUTPUT
RG
RL
RH
fO =
fn =
HOLPn (f = 0)=
+
fCLK
RATIO
fCLK
RATIO
√ RH
RL
1 +
R2
R1
RG
RL
RG
RH
()
1
R2
R4
1 +
( )
√ R2
R4
1 +
Q = 1.005
R3
R2
( )√ R2
R4
1 +
NOTE: RATIO = 100 FOR LTC1067
= 50 FOR LTC1067-50
R3
(RATIO)(0.32)(R4)
(
)
1
1 –
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| LTC1067CS | 功能描述:IC FILTR BLDNGBLK R-R DUAL16SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:- 產(chǎn)品培訓(xùn)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(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) |
| LTC1067CS#PBF | 功能描述:IC FILTR BLDNGBLK R-R DUAL16SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:- 產(chǎn)品培訓(xùn)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(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) |
| LTC1067CS#PBF | 制造商:Linear Technology 功能描述:FILTER, SWITCHED CAPACITOR, 20KHZ, SOIC- |
| LTC1067CS#TR | 功能描述:IC FILTR BLD BLK DUAL R-R 16SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:- 產(chǎn)品培訓(xùn)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(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) |
| LTC1067CS#TRPBF | 功能描述:IC FILTR BLDNGBLK R-R DUAL16SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:- 產(chǎn)品培訓(xùn)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(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) |
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