Seeed DSO203 - Introduction to DSO203 Oscilloscope; Major Features; Safety Precautions; Operation Conditions

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1. Introduction to DSO203 Oscilloscope
DS203 is a pocket size 4-channel digital storage oscilloscope for common electronic engineering
tasks. Its CPU is an ARM Cortex M3, STM32VCT6, with an AD9288-40 dual A/D converter
sampling at 72 MHz, and a customer FPGA to manage the ADC and data buffering. A built-in 2MB
USB disk enables you to store waveforms and to upgrade firmware. It also provides 4 application
areas, convenient for users to load and upgrade at most 4 different application firmware. Schematics
and source files are open-sourced to encourage improvements and innovations.
Major Features
This pocket-size oscilloscope DSO203 helps you test electronic devices, and measure relevant
electronic signal. Its features include:
 Full color 3” TFT LCD display, 400x240 pixels.
 8 MHz ADC bandwidth，8-bit precision.
 2 analog channels: (CH_A, CH_B) and 2 digital channels (CH_C, CH_D).
 Integrated Square/Sine/Triangle/Sawtooth signal generator.
 Calculation channels: [CH_A]+[CH_B], [CH_A]-[CH_B], Logic OR [CH_C]|[CH_D], Logic
AND [CH_C]&[CH_D], REC_A, REC_B, REC_C, REC_D.
 Maximum sampling rate of a single analog channel, 72 MS/s.
 Maximum record length of any channel, 4096 points.
 Waveforms and upgrade firmware can be stored in built-in 2M USB disk.
 Rechargeable battery powered by USB connection.
 Comprehensive user interface through 6 buttons/switches and colored menu control system.
 2 mcx 1X/10X oscilloscope probes.
Safety
To ensure your safety & avoid any damage to the device/connected products, please read the
following precautions carefully. To avoid any possible dangers, please use this product according to
the following rules.
 Avoid fire and physical injury.
 Use supplied USB cord for power.
 Connect and disconnect properly. Do not plug/unplug when the probe(s)/test lead(s) is
connected to the voltage sources. Before you plug/unplug current probes, disconnect power to the
circuit-under-test.
 Observe all terminal ratings. To avoid fire/electric shock, please observe ratings & symbols on
the product. Please read the user’s manual carefully to determine the ratings before connecting
the device.
 Do not operate in humid environment.
 Do not operate in inflammable/explosive environment.
 Keep the surface of the product clean and dry.
Operation Conditions
 Temperature：Operating Condition：0 to +50°C; Non-operating Condition：-20 to +60 °C.
 Humidity：Operating Condition：high temperature：40 to 50 °C，0 to 60% RH; Operating
Condition：low temperature：0 to 40 °C，10 to 90%RH; Non-operating Condition：high
temperature：40 to 60 °C，5 to 60% RH; Non-operating Condition：low temperature：0 to 40
° C ，5 to 90% RH
 Electrical Ratings: Max transient voltage, ± 400 V peak; Measure voltage range, ±15 V peak;