Stefan Salewski

Stefan Salewski
email: mail@ssalewski.de

All my symbols and footprints are licensed GPL for distribution, and unlimited for use. They are created with care, but most are still untested on real hardware.

Larger rectangular symbols are created with the Python script Tragesym.

For a few standard symbols (capacitor, resistor) I have created horizontal and vertical versions with aligned text, and special versions with short pins. In general case short pins look ugly and should not be used, but in a few cases they can be useful.

Some symbols uses footprints of John Luciani's footprint page or my own footprints (see below). Most of my footprints are generated with my own command line based Ruby script SFG. (For some footprints a special version optimized for hand soldering with name extension "_HS" exists.)

Tools

A plain, command line based footprint generator

A simple script for fixing pin (-number) layout of symbols

Documentation

A short summary of recent footprint file format

Symbols

Analog-to-Digital-Converter (ADC)

ADS5521 - 12-bit, upto 105MSPS

ADS6125 (22, 23, 24) - 12-bit, upto 125MSPS

Analog Multiplexer/Switches

High Speed (Video) Multiplexer

Battery

Capacitor

Regular Size

Short Pins (ugly)

Variable (Trimmer)

Comparators

Quad Open Collector Types like LM339 (Most other Comparators use OpAmp layout)

Connectors

One Column, 200 mil

Two Columns, 200 mil

One Column, 300 mil

Two Columns, 300 mil

One Row

Two Rows

DC/DC Converter

Buck-Boost

Step-Down (Buck)

Step-Up (Bost)

Digital-to-Analog-Converter (DAC)

LTC2601/LTC2611/LTC26021 - 16, 14 or 12 bit

Diode (and similar devices)

Ferrite Bead

Filter

FPGA

Spartan-3E, XC3S500E-PQ208

GND (ground)

Ideal Diode

In-Out

JFET

Logic Gates

Slotted, with separate Supply Symbol

All in one, with visible Supply Pins

Microcontroller

Atmel AVR (8 bit RISC)

Misc

MOSFET

N-Channel

P-Channel

Operational Amplifier

Single, with visible Supply Pins

With invisible Supply Pins (use separate Supply Symbol or Net attributes, i.e net=+5V:99

Oscillators

Overvoltage Protection Regulator and Inrush Limiter

Power Pins (i.e. net=+3.3V:1)

Push Buttons

RAM

Static, asynchronous

Static, synchronous

Reed Relays

Resistor

Regular Size

Short Pins (ugly)

RS-232 Drivers/Receivers

Solder Jumpers

Time to Digital Converter

Thermistor

Titleblocks

Transistor

NPN

PNP

USB Connectors

USB Power Manager/Battery Charger

Voltage Regulators

Shunt

Negative

Positive

Footprints

SMD

Through hole

Dipped Radial Ceramic Capacitors

Rectangular WIMA capacitors type MKP-10

Resettable Wire-leaded PTC-Fuses Schurter PFRA

Trimmer -- 3 Lead


Copyright 2009, all rights reserved unless specified otherwise.
gedasymbols.org is maintained by DJ Delorie