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Kamis, 20 Februari 2014

Datasheet IC LM741 indonesia

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Penguat operasional (Op-Amp) adalah suatu blok penguat yang mempunyai dua masukan dan satu keluaran. Penguat operasional (Op-Amp) dikemas dalam suatu  rangkaian terpadu (integrated circuit-IC). Salah satu tipe operasional amplifier (Op-Amp) yang populer adalah LM741. IC LM741 merupakan operasional amplifier yang dikemas dalam bentuk dual in-line package (DIP). Kemasan IC jenis DIP memiliki tanda bulatan atau strip pada salah satu sudutnya untuk menandai arah pin atau kaki nomor 1 dari IC tersebut. Penomoran IC dalam kemasan DIP adalah berlawanan arah jarum jam dimulai dari pin yang terletak paling dekat dengan tanda bulat atau strip pada kemasan DIP tersebut. IC LM741 memiliki kemasan DIP 8 pin seperti terlihat pada gambar berikut.

Konfigurasi Pin IC Op-Amp 741




Pada IC ini terdapat dua pin input, dua pin power supply, satu pin output, satu pin NC (No Connection), dan dua pin offset null. Pin offset null memungkinkan kita untuk melakukan sedikit pengaturan terhadap arus internal di dalam IC untuk memaksa tegangan output menjadi nol ketika kedua input bernilai nol. IC LM741 berisi satu buah Op-Amp, terdapat banyak tipe IC lain yang memiliki dua atau lebih Op-Amp dalam suatu kemasan DIP. IC Op-Amp memiliki karakteristik yang sangat mirip dengan konsep Op-Amp ideal pada analisis rangkaian. Pada kenyataannya IC Op-Amp terdapat batasan-batasan penting yang perlu diperhatikan. Pertama, tegangan maksimum power supply tidak boleh melebihi rating maksimum, karena akan merusak IC. Kedua, tegangan output dari IC op amp biasanya satu atau dua volt lebih kecil dari tegangan power supply. Sebagai contoh, tegangan swing output dari suatu op amp dengan tegangan supply 15 V adalah ±13V. Ketiga, arus output dari sebagian besar op amp memiliki batas pada 30mA, yang berarti bahwa resistansi beban yang ditambahkan pada output op amp harus cukup besar sehingga pada tegangan output maksimum, arus output yang mengalir tidak melebihi batas arus maksimum. Pada sebuah peguat operasional (Op-Amp) dikenal beberapa istilah yang sering dijumpai, diantaranya adalah : Tegangan ofset masukan (input offset voltage) Vio menyatakan  seberapa jauh v+ dan v terpisah untuk mendapatkan keluaran 0 volt. Arus offset masukan (input offset current) menyatakan kemungkinan seberapa berbeda kedua arus masukan. Arus panjar masukan (input bias current) memberi ukuran besarnya arus basis (masukan). Harga CMRR menjamin bahwa output hanya tergantung pada (v+) – (v-), walaupun v+ dan v- masing-masing berharga cukup tinggi. Untuk menghindari keluaran yang berosilasi, maka frekuensi harus dibatasi, unity gain frequency memberi gambaran dari data tanggapan frekuensi. hal ini hanya berlaku untuk isyarat yang kecil saja karena untuk isyarat yang besar penguat mempunyai keterbatasan sehingga output maksimum hanya dihasilkan pada frekuensi yang relative rendah.

Kata Kunci pencarian : datasheet lm741 indonesia ; datasheet lm741 ; datasheet lm741 make bahasa indonesia ; datasheet lm741 pakai bahasa  indonesia ; Definisi IC lm741 ; datasheet lm741 menggunakan bahasa indonesia

Rabu, 19 Februari 2014

Gerbang Logika

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Gerbang logika adalah piranti dua keadaan, yaitu mempunyai keluaran dua keadaan: keluaran dengan nol volt yang menyatakan logika 0 (atau rendah) dan keluaran dengan tegangan tetap yang menyatakan logika 1 (atau tinggi). Gerbang logika dapat mempunyai beberapa masukan yang masing-masing mempunyai salah satu dari dua keadaan logika, yaitu 0 atau 1. Gerbang logika dapat digunakan untuk melakukan fungsi-fungsi khusus, misalnya AND, OR, NAND, NOR, NOT atau EX-OR (XOR).




A. Gerbang AND Dan NAND
Gerbang AND digunakan untuk menghasilkan logika 1 jika semua masukan mempunyai logika 1, jika tidak akan dihasilkan logika 0. Daftar yang berisi kombinasi semua kemungkinan keadaan masukan dan keluaran yang dihasilkan disebut sebagai Tabel kebenaran dair gerbang yang bersangkutan. Gerbang NAND akan mempunyai keluaran 0 bila semua masukan pada logika 1. Sebaliknya, jika sbeuah logika 0 pada sembarang masukan pada gerbang NAND, maka keluarannya akan bernilai 1.  Kata NAND merupakan kependekan dari NOT-AND, yang merupakan ingkaran gerbang AND. Simbol AND dan NAND





B. Gerbang OR Dan NOR Gerbang OR akan memberikan keluaran 1 jika salah satu dari masukannya pada keadaan 1. Jika diinginkan keluaran bernilai 0, maka semua masukan harus dalam keadaan 0 . Gerbang NOR akan memberikan keluaran 0 jika salah satu dari masukkannya pada keadaan 1. Jika diinginkan keluaran bernilai 1, maka semua masukan harus dalam keadaan 0. Kata NOR merupakan kependekan dari NOT-OR, yang merupakan ingkaran dari gerbang OR.


C. Gerbang NOT
Gerbang NOT merupakan gerbang satu-masukan yang berfungsi sebagai pembalik (inverter). Jika masukannya tinggi, maka keluarannya rendah, dan sebaliknya. Tabel kebenaran dari gerbang NOT tersaji pada tabel dibawah. 

D. Gerbang XOR Gerbang XOR (dari kata exclusive-or) akan memberikan keluaran 1 jika masukan-masukannya mempunyai keadaan yang berbeda.  Dari Tabel tersebut dapat dilihat bahwa keluaran pada gerbang XOR merupakan penjumlahan biner dari masukannya. Berikut tadi sedikit gambaran tentang gerbang logika pada elektronika digital. Gerbang -gerbang logika dasar digital tersebut diatas merupakankomponen dasar yang penting dan digunakan untukmembangu sistem digital yang.


Hastag : Gerbang Logika, Gerbang And , Gerbang OR , Gerbang Not, dan pengembangan gerbang lainya pada elektronika

Minggu, 02 Februari 2014

Easily Customize Your Sony Xperia Z’s Launcher and Lock Screen with Xposed

muapsein.blogspot.com Up until now, customizing an Xperia launcher and lock screen has been quite the hassle, usually consisting of decompiling an APK, making your edits, and recompiling it. So if you wanted an extra row or column of icons on your home screen, you had to flashthis, if you wanted fading home screen indicators, you had to flash this, and if you wanted to get rid of the app dock, you had to flash this, and so on. For every little change you wanted, there was an individual mod that you had to flash, and this can definitely become burdensome if you wished for a lot of changes.
This is probably why XDA Forum Member greg2001developed an Xposed module to apply such aesthetic changes to the launcher and lock screen of the Sony Xperia Z. With it, one no longer has to create, find, and flash a plethora of incremental modifications to make their launcher and lock screen their own. Rather, XDA Recognized Developer rovo89‘s Xposed framework does all the work for you.
The full list of tweaks to the launcher and lock screen are as follows:
  • Launcher tweaks
    • Condensed font
    • Transparent status/navigation bars
    • Desktop grid size
    • Multi-line labels on desktop
    • Auto-hide page indicator on desktop
    • Folder columns
    • Multi-line labels in folders
    • Disable launcher background dimming when opening a folder
    • Dock columns
    • Hide dock stage
    • Hide dock reflections
    • Large dock reflections
    • Transparent drawer
    • Drawer grid size
    • Hide drawer backplate
  • Lock Screen tweaks
    • Transparent status bar
    • Enable the standard AOSP lockscreen with live wallpaper support, customizable via GravityBox
    • Hide shortcut icons
    • Hide unlock hint arrows
    • Custom/hidden unlock hint text
    • Custom/hidden carrier label
    • Small blinds
And because this is an Xposed mod, reverting back to previous settings is as simple as few taps and swipes, much more convenient than previously. It must be noted that the module will only work with an Xperia Z running the official Android 4.3 firmware.
If you would like to check this out, head over to the original thread for more information.

Get the Sony UI in Non-Sony Apps on Sony Xperia Devices

muapsein.blogspot.com Now that Google’s Holo theme has been around for quite a while now, it’s probably safe to say that a very large portion of apps, if not the majority, have adopted the Holo look. But as OEMs are, they like to keep things their way, and this is no different when it comes to Sony. But unlike some OEMs and their preferred interfaces, the aesthetic route Sony has taken doesn’t stray too much from Holo. This may have resulted many folks taking a liking for Sony’s UI, leading to XDA Recognized Themer BDFreak creating an interesting framework for the Sony Xperia Z1, Z,ZL, SP, T, TX and V.
As Xperia owners would know, the Sony UI can only be seen on apps made by Sony, such as the messaging app, Walkman, and the calendar. What this framework does however, is force the Sony UI to replace the UI of any non-Sony app, making the Sony look consistent throughout your phone. No matter which app you have installed, and what sort of theme they have, be it Holo or something made in MS Paint, the framework replaces every UI element with those of Sony.
If you’re unsure or wary of how this might turn out, BDFreak has provided some side-by-side comparisons of apps’ interfaces before and after installation of the framework to help you decide before diving in. Installation is very simple, merely consisting of downloading the appropriate zip file and flashing it through a custom recovery. There are also convenient zip files which revert everything back to they way they were before if you don’t like what you see.
If you would like to check this framework out, head over to the original threads for the supported devices.

Apply Custom Themes on a Whim with Xposed Module

muapsein.blogspot.com With all the various types of theme formats and the plethora of custom themes available for Android users today, there has to be a way to view, organize, and apply themes you have installed in one simple and hassle-free interface. And while you’re at it, why not throw in there some pretty extensive customization options?
Well, XDA Forum Member hdbk1986 developed a module for the Xposed framework called HKThemeManager, allowing you do all the aforementioned things with the convenience and flexibility of an Xposed module. With support for CM themes, Xthemes, and HKthemes, HKThemeManager searches and shows all themes installed on your device for your to browse through and choose from.
HKThemeManager gives you the flexibility to select certain specific visual elements of the user interface (such as certain apps) that you want the theme to apply to, while leaving everything else as they are. In addition, you can also set multiple themes on your device, with only the overlapping visual elements of the selected themes replaced by the most recent theme you’ve applied.
HKThemeManager can be downloaded from either the original post or the Xposed module repository. So if you are interested in an all-in-one theme manager, visit the original thread for more information.

Give Your Sony Xperia Device a Makeover with Serajr Xperia Xposed Mod

muapsein.blogspot.com - When it comes to Xposed modules focused on UI customization, there are some great choices out there. But because many of them are designed to have maximum compatibility with a wide range of different devices, naturally the amount of customization that is allowed will be restricted. So when an Xposed module developed specifically for one type of device, namely Xperia devices, one can expect greater customization options.
And this is exactly the case with Serajr Xperia, developed by XDA Recognized Themer serajr. This is an Xposed module developed only for Xperia devices running the official Android 4.2.2+ firmware (with a few exceptions). Its great range of customization options are organized into 5 main categories: System, System UI, Power Menu, Xperia Home, and Media. In total, there are a 44 options as of right now, including:
  • Desktop panes with infinite scrooling
  • Create unlimited desktop panes
  • Static desktop wallpaper
  • Multiline desktop icons labels
  • Auto hide desktop pagination markersApp Drawer panes with infinite scrooling
  • Hide App Drawer background plate
  • Auto close App Drawer after start application
  • Choose Dock shortcuts number without dpi decrease
The device compatibility list includes most Xperia devices that have had their Android 4.2 and 4.3 update already such as the Xperia Z1Z, and L, as well as a few devices which have only Android 4.1 such as the Xperia S and ION.
If you want to check out the Xposed module yourself, visit the original thread for more information.

Easily Try Ubuntu on Your Device

muapsein.blogspot.com If you know a bit about Android, you might have noticed that the OS is built atop the Linux kernel. The most important component in Android is the kernel, which is also a central part of every Unix-like operating systems. The similarities in the overall structure allow running Linux on Android devices, but some changes are necessary. We previously talked about the Ubuntu project by XDA Forum Moderator and Recognized Developer zacthespack, but now it’s time to showcase a different approach.
If you want to try out Ubuntu on your device, you should consider trying out chroot. It changes the apparent root directory for the current running process and its children. Thus, a program that is run in chroot can’t access files outside designated directory tree. XDA Forum Member userdelroot used chroot when he created a script to install Ubuntu directly on your device.
The script creates a proper image and downloads the necessary files to your device. All you need to do is to copy it to the location mentioned by developer and run it as root. The development is still at a very early stage, so there might be some inconveniences here and there. So far, the method has been tested on the Nexus 7 (2013), but it is likely to work on most other devices as well.
To find out more about the project, head over to the development thread.