- 您现在的位置：买卖IC网 > PDF目录377707 > LT1568 (Linear Technology Corporation) Very Low Noise, High Frequency Active RC, Filter Building Block PDF资料下载
参数资料
| 型号： | LT1568 |
| 厂商： | Linear Technology Corporation |
| 英文描述： | Very Low Noise, High Frequency Active RC, Filter Building Block |
| 中文描述： | 极低噪声，高频有源RC，滤波器积木 |
| 文件页数： | 11/16页 |
| 文件大小： | 271K |
| 代理商： | LT1568 |
LT1568
11
1568f
The following filter examples are provided to make it easy
to design a variety of filter stages. Both 2nd and 4th order
filters are shown. For each filer, a table of external resistor
values (standard 1% tolerance) is provided. These resistor
values have been adjusted to compensate for the finite
gain bandwidth product of the LT1568 amplifiers.
To implement a filter, simply connect the resistor values
shown in the table for the cutoff frequency desired. If the
desired cutoff frequency is not shown in the table of
values, use interpolation as recommended in the next
section.
DESIGNING FOR ANY CUTOFF FREQUENCY
To implement a lowpass filter with a cutoff frequency not
included in the design table, resistor values can be inter-
polated in the following manner:
For a Cutoff Frequency, f
C
, Less Than 1MHz
Start with the resistor values for f
C
= 1MHz and then scale
them up by the ratio of (1MHz/f
C
).
APPLICATIU
W
U
U
Example: Implement a 2nd order lowpass Chebyshev filter
with an f
C
of 256kHz. From Table 2 the values for f
C
of
1MHz are R11 = R21 = 976
and R31 825
.
Scaling for f
C
= 256kHz:
R11 = R21 = 976
(1MHz/256kHz)
≈
3.83k
R31 = 825
(1MHz/256kHz)
≈
3.24k
For a Cutoff Frequency, f
C
, Between Values Given in a
Design Table
Start with the resistor values for the cutoff frequency
closest to the desired one and scale the values up or down
accordingly.
Example: Implement a 2nd order lowpass Chebyshev filter
with an f
C
of 3.2MHz. From Table 2 the closest values are
for f
C
of 3MHz and are R11 = R21 = 316
and R31 = 274
.
Scaling for f
C
= 3.2MHz:
R11 = R21 = 316
(3MHz/3.2MHz)
≈
294
R31 = 274
(3MHz/3.2MHz)
≈
255
相关PDF资料 |
PDF描述 |
|---|---|
| LT1568IGN | D52 - STRAIN RELIEF OPEN STRT MIL |
| LT1568CGN | Very Low Noise, High Frequency Active RC, Filter Building Block |
| LT1571-5 | Constant-Current/ Constant-Voltage Battery Charger with Preset Voltage and Termination Flag |
| LT1571EGN-1 | Constant-Current/ Constant-Voltage Battery Charger with Preset Voltage and Termination Flag |
| LT1571EGN-2 | Constant-Current/ Constant-Voltage Battery Charger with Preset Voltage and Termination Flag |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1568CGN | 功能描述:IC FILTER BUILDING BLOCK 16SSOP RoHS:否 类别:集成电路 (IC) >> 接口 - 滤波器 - 有源 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1,000 系列:- 滤波器类型:连续时间，带通低通 频率 - 截止或中心:150kHz 滤波器数:4 滤波器阶数:8th 电源电压:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) |
| LT1568CGN#PBF | 功能描述:IC FILTER BUILDING BLOCK 16SSOP RoHS:是 类别:集成电路 (IC) >> 接口 - 滤波器 - 有源 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1,000 系列:- 滤波器类型:连续时间，带通低通 频率 - 截止或中心:150kHz 滤波器数:4 滤波器阶数:8th 电源电压:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) |
| LT1568CGN#TR | 功能描述:IC BLOCK BUILD FLTR LONOS 16SSOP RoHS:否 类别:集成电路 (IC) >> 接口 - 滤波器 - 有源 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1,000 系列:- 滤波器类型:连续时间，带通低通 频率 - 截止或中心:150kHz 滤波器数:4 滤波器阶数:8th 电源电压:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) |
| LT1568CGN#TRPBF | 功能描述:IC BLOCK BUILD FLTR LONOS 16SSOP RoHS:是 类别:集成电路 (IC) >> 接口 - 滤波器 - 有源 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1,000 系列:- 滤波器类型:连续时间，带通低通 频率 - 截止或中心:150kHz 滤波器数:4 滤波器阶数:8th 电源电压:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) |
| LT1568CGNPBF | 制造商:LINEAR_DIMENSIONS 制造商全称:LINEAR_DIMENSIONS 功能描述:Very Low Noise, High Frequency Active RC, Filter Building Block |
发布紧急采购，3分钟左右您将得到回复。