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matlab例程 分别给出利用自适应Simpson积分的数值积分方法（QUAD.m）和自适应Lobatto的数值积分算法（QUADL.m）。
分别给出利用自适应Simpson积分的数值积分方法（QUAD.m）和自适应Lobatto的数值积分算法（QUADL.m）。
压缩解压 Quad Tree Bit Plane Compression. A program to compress images. Qbit is an image viewer that loads
Quad Tree Bit Plane Compression.
A program to compress images. Qbit is an image viewer that loads and saves it s own imge format as well
as loading various Sun Raster File, Targa and Bitmap files.
其他 Implementing a Quad 1200 baud Full-duplex software UART with Salvo au1200的资料
Implementing a Quad 1200 baud Full-duplex software UART with Salvo
au1200的资料
其他 Introducing the world s most sensitive triple quad.
Introducing the world s most sensitive triple quad.
驱动编程 The SP486 and SP487 are low–power quad differential line drivers meeting RS-485 and RS-422 standard
The SP486 and SP487 are low–power quad differential line drivers meeting RS-485 and RS-422
standards. The SP486 features a common driver enable control the SP487 provides independent
driver enable controls for each pair of drivers. Both feature tri–state outputs and wide
common–mode input range. ...
嵌入式/单片机编程 7400 QUAD 2-INPUT NAND GATES 与非门 7401 QUAD 2-INPUT NAND GATES OC 与非门 7402 QUAD 2-INPUT NOR GATES
7400 QUAD 2-INPUT NAND GATES 与非门
7401 QUAD 2-INPUT NAND GATES OC 与非门
7402 QUAD 2-INPUT NOR GATES 或非门
7403 QUAD 2-INPUT NAND GATES 与非门
7404 HEX INVERTING GATES 反向器
7406 HEX INVERTING GATES HV 高输出反向器
7408 QUAD 2-INPUT AND GATE 与门
7409 QUAD 2-INPUT AND GATES OC 与门
7410 ...
PCB相关 表面贴装设计和焊盘图形标准通用要求
IPC-7351不只是一个强调新的元件系列更新的焊盘图形的标准，如方型扁平无引线封装QFN (Quad Flat No-Lead)和小外型无引线封装SON (Small Outline No-Lead)；还是一个反映焊盘图形方面的研发、分类和定义——这些建立新的工业CAD数据库的关键元素——的全新变化的标准。 ...
经验分享 QFN SMT工艺设计指导
QFN SMT工艺设计指导.pdf
一、基本介绍
QFN（Quad Flat No Lead）是一种相对比较新的IC封装形式，但由于其独特的优势，其应用得到了快速的增长。QFN是一种无引脚封装，它有利于降低引脚间的自感应系数，在高频领域的应用优势明显。QFN外观呈正方形或矩形，大小接近于CSP，所以很薄很轻。元件底部具有与底面水平的焊端， ...
PCB相关 MAX20021,MAX20022示例PCB布局指南
Abstract: This application note explains how to layout the MAX20021/MAX20022 automotive quad powermanagementICs (PMICs) to maximize performance and minimize emissions. Example images of a fourlayerlayout are provided.
PCB相关 IC封裝製程簡介(IC封装制程简介)
半導體的產品很多，應用的場合非常廣泛，圖一是常見的幾種半導體元件外型。半導體元件一般是以接腳形式或外型來劃分類別，圖一中不同類別的英文縮寫名稱原文為
 
PDID：Plastic Dual Inline Package
SOP：Small Outline Package
SOJ：Small Outline J-Lead Package
PLCC：Plastic Leaded Chip Carrier
QFP：Quad Fla ...