参数资料
| 型号： | AC164120 |
| 厂商： | Microchip Technology |
| 文件页数： | 23/36页 |
| 文件大小： | 0K |
| 描述： | BOARD SIGNAL ANALYSIS PICKIT |
| 标准包装： | 1 |
| 系列： | PICtail™ |
| 主要目的： | 接口，信号分析 |
| 嵌入式： | 是，MCU，8 位 |
| 已用 IC / 零件： | PICkit? PICtail?1 |
| 主要属性： | 实时条形图，示波器，快速傅立叶转换（FFT） |
| 次要属性： | 柱状图 |
| 已供物品： | 板 |
| 产品目录页面： | 658 (CN2011-ZH PDF) |
| 相关产品： | DV164101-ND - KIT DEV PICKIT1 FLASH 8/14PIN |
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Using the PICkit? 1 Signal Analysis PC Application
Rectangular – Window is a rectangular shaped window. Every point of the time scale
is multiplied by a constant. This window provides the best frequency resolution with the
narrowest lobe width. Amplitude accuracy errors occur if frequency of observed signal
has a non-integer number of cycles in the FFT time record. Most typically, this window
is best used when viewing transients, impulses, pseudo-random noise and when the
input signal is correlated with the sampling frequency.
When the FFT windows are implemented there is a certain amount of energy that is
spread across adjacent frequency bins. This spreading is a result of converting
non-coherent signals and the particular window. Consequently, there is not a direct
correlation between the amplitude of the analog input signal to the A/D converter and
the height of the spur in the FFT analysis.
2.6.1
Glossary of Terms
Fundamental Frequency – The lowest frequency component in the Fourier
representation of a periodic quantity.
Noise Floor – The noise level at a referenced location and bandwidth.
SNR (Signal-to-Noise Ratio) – The ratio of relative power of the usable signal to the
noise present, expressed in decibels.
SINAD (Signal to (Noise + Distortion) Ratio) – S/(N+D) is the ratio of the rms value
of the actual input signal to the rms sum of all other spectral components or harmonics
below the Nyquist frequency, excluding DC. This software includes nine harmonics in
the calculation. Decibels is the unit of measure for S/(N+D).
THD (Total Harmonic Distortion) – The ratio in dB of the energy of a fundamental test
frequency to the energy of its harmonics appearing in the band of interest.
SFDR (Spurious Free Dynamic Range) – The difference in decibels between the
input signal and the next largest harmonic.
? 2004 Microchip Technology Inc.
DS51476A-page 19
相关PDF资料 |
PDF描述 |
|---|---|
| AC164121 | BOARD DAUGHTER PICTAIL ETHERNET |
| AC164122 | BOARD DAUGHT PICTAIL SD/MMC CARD |
| AC164123 | BOARD DAUGHTER ETH PICTAIL PLUS |
| AC164124 | BOARD DAUGHTER IRDA PICTAIL PLUS |
| AC164125 | BOARD DAUGHTER PICTAIL SPEECH |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AC164121 | 功能描述:以太网开发工具 Ethernet PICtail Dghtr Brd RoHS:否 制造商:Micrel 产品:Evaluation Boards 类型:Ethernet Transceivers 工具用于评估:KSZ8873RLL 接口类型:RMII 工作电源电压: |
| AC164121 | 制造商:Microchip Technology Inc 功能描述:IC ((NW)) |
| AC164122 | 功能描述:子卡和OEM板 PICtail Daughter Brd SD/MMC cards RoHS:否 制造商:BeagleBoard by CircuitCo 产品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit |
| AC164122 | 制造商:Microchip Technology Inc 功能描述:SEMICONDUCTOR ((NW)) |
| AC164123 | 功能描述:以太网开发工具 PICtail Daughter Brd Ethernet Plus RoHS:否 制造商:Micrel 产品:Evaluation Boards 类型:Ethernet Transceivers 工具用于评估:KSZ8873RLL 接口类型:RMII 工作电源电压: |
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