3.1.1.2. STEMlab 125-14

3.1.1.2.1. Technical specifications

• Product comparison table

3.1.1.2.2. Schematics

• Red_Pitaya_Schematics_v1.0.1.pdf

Note

FULL HW schematics for the Red Pitaya board are not available. Red Pitaya has open source code but not open hardware schematics. Nonetheless, DEVELOPMENT schematics are available. This schematic will give you information about HW configuration, FPGA pin connections, and similar.

3.1.1.2.3. Mechanical specifications

• Red_Pitaya_3Dmodel_v1.0.zip

3.1.1.2.4. Fast analog IO

• 3.1.1.2.4.1. Analog inputs
  • 3.1.1.2.4.1.1. General Specifications
    • 3.1.1.2.4.1.1.1. Jumpers
    • 3.1.1.2.4.1.1.2. Jumper orientation
    • 3.1.1.2.4.1.1.3. Input stage schematics
    • 3.1.1.2.4.1.1.4. Coupling
    • 3.1.1.2.4.1.1.5. Bandwidth
    • 3.1.1.2.4.1.1.6. Input noise
    • 3.1.1.2.4.1.1.7. Input channel isolation
    • 3.1.1.2.4.1.1.8. Harmonics
    • 3.1.1.2.4.1.1.9. Spurious frequency components
    • 3.1.1.2.4.1.1.10. Reference signals
    • 3.1.1.2.4.1.1.11. DC offset error
    • 3.1.1.2.4.1.1.12. Gain error
  • 3.1.1.2.4.1.2. Analog inputs calibration
• 3.1.1.2.4.2. Analog outputs
  • 3.1.1.2.4.2.1. General Specifications
    • 3.1.1.2.4.2.1.1. Output impedance
    • 3.1.1.2.4.2.1.2. Bandwidth
    • 3.1.1.2.4.2.1.3. Harmonics
    • 3.1.1.2.4.2.1.4. DC offset error
    • 3.1.1.2.4.2.1.5. Gain error
  • 3.1.1.2.4.2.2. Analog output calibration

3.1.1.2.5. Extension

• 3.1.1.2.5.1. Extension connector
  • 3.1.1.2.5.1.1. Extension connector E1
  • 3.1.1.2.5.1.2. Extension connector E2
  • 3.1.1.2.5.1.3. Auxiliary analog input channels
  • 3.1.1.2.5.1.4. Auxiliary analog output channels
  • 3.1.1.2.5.1.5. General purpose digital input/output channels: (N)
  • 3.1.1.2.5.1.6. Powering Red Pitaya through extension connector

3.1.1.2.6. External ADC clock

The ADC clock can be provided by:

• On board 125MHz XO (default)

• From an external source/through extension connector E2 (R25, R26 should be moved to location R23, R24)

• Directly from the FPGA (R25, R26 should be relocated to R27, R28)

Schematic

Top side

Bottom side

3.1.1.2.7. Certificates

Besides the functional testing, Red Pitaya passed the safety and electromagnetic compatibility (EMC) tests at an external testing and certification institute.

• 3.1.1.2.7.1. CB test certificate - Safety
• 3.1.1.2.7.2. CB Test certificate - EMC
• 3.1.1.2.7.3. MET Approval Letter
• 3.1.1.2.7.4. NRTLC Certification Record

3.1.1.2.8. Cooling options

For additional cooling, we recommend a 30 mm or 25 mm fan. You can utilise the power connector on the board to power the fan, but please note that it supplies only 5 V. The power connector is located between the micro-SD socket and the host USB connector.

Note

The power connector is a standard 2-pin 0.1” connector. Supplies only 5 V.

• 3.1.1.2.8.1. Assembly
• 3.1.1.2.8.2. Measurements