Loto OSC802

File:Logo osc802.png

Loto OSC802

The [1] is a USB-based, 2-channel oscilloscope with an analog bandwidth of 20MHz and 80MS/s sampling rate.

See Loto OSC802/Info for more details (such as lsusb -v output) about the device.

For more information about the devices in Loto's USB oscilloscope series, see Loto OSCxxx.

Hardware

• Main chip: Xilinx Spartan XC3S50AN (datasheet)
• Main oscillator: 100MHz 100.000 YX NH
• USB: Cypress CY7C68013A-100AXC (FX2LP)
• 512K x 8 high-speed CMOS static RAM: 2x ISSI IS61LV5128AL-10TLI (datasheet)
• I2C EEPROM: Microchip 24LC02BI (for the USB VID/PID of the Cypress FX2LP)
• Main power supply (3v3 to 1v2)? (near the 1kHz 2VPP signal gen): TPS54286 (datasheet)
• Octal buffer / line driver for level shifting SRAM (U23): HC244SJ

Input stage (per channel):

• Quad/dual, low-voltage, bidirectional RF video switch: Maxim MAX4547 (datasheet)
• Relay: 3x Forward Relays PL-5

Protocol

See Loto OSCxxx#Protocol.

Resources

• Manual
• Vendor software
• SDK
• Teardown video