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| 型号： | MCP6XXXDM-FLTR |
| 厂商： | Microchip Technology |
| 文件页数： | 30/46页 |
| 文件大小： | 0K |
| 描述： | KIT DEMO BOARD ACTIVE FILTER |
| 标准包装： | 1 |
| 主要目的： | 滤波器，有源 - 带通，高通，低通 |
| 嵌入式： | 是，MCU，8 位 |
| 已用 IC / 零件： | MCP6271 |
| 主要属性： | 可级联 PCB，单源 |
| 次要属性： | Bessel，Butterworth 和 Chebyshev，带编号 1 ~ 8 |
| 已供物品： | 5 板，配件包，CD |
| 产品目录页面： | 681 (CN2011-ZH PDF) |
| 相关产品： | MCP6271T-E/OTDKR-ND - IC OPAMP 2.0V SNGL R-R SOT23-5 MCP6271RT-E/OTDKR-ND - IC OPAMP 2.0V SNGL R-R SOT23-5 MCP6271RT-E/OTTR-ND - IC OPAMP 2.0V SNGL R-R SOT23-5 MCP6271T-E/OTTR-ND - IC OPAMP 2.0V SNGL R-R SOT23-5 MCP6271T-E/OTCT-ND - IC OPAMP 2.0V SNGL R-R SOT23-5 MCP6271RT-E/OTCT-ND - IC OPAMP 2.0V SNGL R-R SOT23-5 MCP6271T-E/SN-ND - IC OPAMP 2.0V SNGL R-R 8SOIC MCP6271T-E/MS-ND - IC OPAMP 2.0V SNGL R-R 8MSOP MCP6271-E/SN-ND - IC OPAMP 2.0V SNGL R-R 8SOIC MCP6271-E/P-ND - IC OPAMP 2.0V SNGL R-R 8DIP 更多... |
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Active Filter Demo Board Kit User’s Guide
To implement dual supplies, it is also necessary to change the Active Filter Section
(see Figure 4-2) set-up:
? The boards’ bypass capacitors (C1 and C3) need to be removed and replaced
- Connect one set from –VS (board GND) to GND (board VDD/2)
- Connect the other set from +VS (board VDD) to GND (board VDD/2).
? If desired, R1 and C1 can be removed
? Connect the Oscilloscope as follows
- Oscilloscope signal probe to VOUT (TP1)
- Oscilloscope GND probe to VDD/2 (TP3)
Note:
Do not connect the oscilloscope GND probe to board GND (TP2) when set
up for dual supplies; this may cause a ground conflict between lab
equipment .
Do not connect
ground probe to GND
Oscilloscope
V DD
V DD /2
GND
GND
V IN
GND
V OUT
GND
V DD
V DD /2
GND
GND
V OUT
GND
FIGURE 4-2:
Setting up Active Filter Section” or dual supplies.
Using dual supplies may not work well for high frequency designs. –V S will be
connected to the ground plane, instead of GND, causing greater radiation of supply
noise and more crosstalk.
4.2.2
Increased Power Supply Voltages
The total voltage across the power supplies should not exceed the op amp’s
specification (5.5V for the MCP6271). The large bypass capacitors on each board are
rated at 16V, which also limits the possible supply voltage.
If necessary, op amps with higher supply voltage can be accommodated. The boards’
bypass capacitors must be removed and replaced with other bypass capacitors with a
higher voltage rating.
DS51614A-page 26
? 2006 Microchip Technology Inc.
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