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參數(shù)資料
| 型號： | LTC1067-50IGN |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 2/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC FILTR BLDNGBLK R-R DUAL16SSOP |
| 標準包裝： | 100 |
| 濾波器類型： | 通用開關(guān)電容器 |
| 頻率 - 截止或中心： | 40kHz |
| 濾波器數(shù)： | 2 |
| 濾波器階數(shù)： | 4th |
| 電源電壓： | 2.7 V ~ 11 V，±2.7 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： | 管件 |
10
LTC1067/LTC1067-50
ODES OF OPERATIO
U
W
The parallel combination of R5 and R6 should be kept
below 5k.
Please refer to the Operating Limits paragraph under Appli-
cations Information for a guide to the use of capacitor CC.
Mode 3
In Mode 3, the ratio of the external clock frequency to the
center frequency of each 2nd order section can be ad-
justed above or below the part’s nominal ratio. Figure 5
illustrates Mode 3, the classical state variable configura-
tion, providing highpass, bandpass and lowpass 2nd
order filter functions. Mode 3 is slower than Mode 1. Mode
3 can be used to make high order all-pole bandpass,
lowpass and highpass filters.
Please refer to the Operating Limits paragraph under Appli-
cations Information for a guide to the use of capacitor CC.
Mode 2
Mode 2 is a combination of Mode 1 and Mode 3, shown in
Figure 6. With Mode 2, the clock-to-center frequency ratio,
fCLK/fO, is always less than the part’s nominal ratio. The
advantage of Mode 2 is that it provides less sensitivity to
resistor tolerances than does Mode 3. Mode 2 has a
highpass-notch output where the notch frequency
depends solely on the clock frequency and is therefore
less than the center frequency, fO.
Please refer to the Operating Limits paragraph under Appli-
cations Information for a guide to the use of capacitor CC.
–
+
Σ
∫
AGND
R1
HP
BP
LP
VIN
1067 F05
+
–
S
R2
R3
CC
R4
fO =
fCLK
RATIO
HOHP = –
; HOBP = –
;
NOTE: RATIO = 100 FOR LTC1067
= 50 FOR LTC1067-50
R2
R1
R3
R1
R4
R1
HOLP = –
R3
R2
√R2
R4
R3
(RATIO)(0.32)(R4)
(
)
1
1 –
R3
(RATIO)(0.32)(R4)
(
)
1
1 –
( )
√R2
R4
; Q = 1.005
Figure 5. Mode 3, 2nd Order Section Providing
Highpass, Bandpass and Lowpass Outputs
Figure 6. Mode 2, 2nd Order Filter Providing Highpass
Notch, Bandpass and Lowpass Outputs
–
+
Σ
∫
AGND
R1
N
BP
LP
VIN
1067 F04
+
–
S
R2
R3
CC
R5
R6
fO =
; fn = fO
Q =
; HON = –
; HOBP = –
HOLP = –
R2
R1
R3
R1
R3
R2
fCLK
RATIO
√ R6
(R6 + R5)
R2
R1
R6 + R5
R6
√ R6
(R6 + R5)
()
NOTE: RATIO = 100 FOR LTC1067
= 50 FOR LTC1067-50
Figure 4. Mode 1b, 2nd Order Filter Providing Notch,
Bandpass and Lowpass Outputs
–
+
Σ ∫
∫
AGND
R1
HPN
BP
LP
VIN
1067 F06
+
–
S
R2
R3
CC
R4
fO =
; fn =
fCLK
RATIO
√ R2
R4
1 +
fCLK
RATIO
Q = 1.005
R3
R2
( )√ R2
R4
1 +
HOHPN = –
(AC GAIN, f >> fO); HOHPN = –
R2
R1
R2
R1
R2
R1
1
R2
R4
1 +
( ) (DCGAIN)
HOBP = –
R3
R1
; HOLP = –
NOTE: RATIO = 100 FOR LTC1067
= 50 FOR LTC1067-50
R3
(RATIO)(0.32)(R4)
(
)
1
1 –
R3
(RATIO)(0.32)(R4)
(
)
1
1 –
1
R2
R4
1 +
( )
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| LTC1067-50IGN#PBF | 功能描述:IC FILTR BLDNGBLK R-R DUAL16SSOP 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) |
| LTC1067-50IGN#TR | 功能描述:IC FILTR BLD BLK DUAL R-R 16SSOP 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) |
| LTC1067-50IGN#TRPBF | 功能描述:IC FILTR BLDNGBLK R-R DUAL16SSOP 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) |
| LTC1067-50IS | 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) |
| LTC1067-50IS#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) |
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