ShieldPi Pro multi-functional EMI shield/power supply cleaner

Introduction
ShieldPi Pro is not only a powerful Raspberry Pi EMI shield HAT, but also:

• A high-performance power supply cleaner/filter
• Raspberry safe ON/OFF button
• A GPIO extender/multiplier
• An ultra-low noise 3.3V power supply (MkIII)
• An IR-remote control Receiver (MkIII)
• Power a RaspberryPi from GPIO
• Power ON/OFF indication and signal

ShieldPi Pro is suitable to all RespberryPi applications to reduce EMI noise and improve power supply performance. Improvement can be made right away by just installing it into GPIO connector of a RaspberryPi.

Highlighted Features and Specifications

• Zero current single-point grounding shield plate to eliminate EMI noise of the Raspberry Pi
• Ultra-low ESR wide bandwidth 5V power supply filtering networks cover the frequency range up to GHz
  ESR: 2mΩ@200KHz, 0.3mΩ/@2Mhz, 1mΩ@20MHz, 4mΩ/@200MHz
• Full 40 pins GPIO extender
• Full 40 pins GPIO multiplier (AUX GPIO)
• Has a Raspberry Pi GPIO power ON/OFF button and a connector to external power button
• Has an optional power on indication LED and a power on/off control signal output
• Can implement Raspberry Pi’s IR-remote control function when working with a MonitorPi
• Reduce both EMI noise and power supply noise
• Improve Raspberry Pi application’s performance to a higher level
• DIY friendly and plug and play

ShieldPi Pro MkII new features

• Full size shield HAT that can cover the whole Raspberry Pi PCB area
• Better EMI suspension performance will be expected
• High profile GPIO connector makes it possible to work with RPi that is equipped with a heatsink
• ON/OFF button moved to the front edge of PCB to make it easier to operate

ShieldPi Pro MkIII new upgrades over MkII

• Built-in ultra-low noise 3.3V/500mA power supply, capable of powering FifoPi, DAC or other devices without using additional 3.3V power supply
• Optical receiver makes IR remote controller working for RaspberryPi 
• 5V input/output connector can power a RaspberryPi directly from GPIO with bypassing the USB power input.
• Optimized PCB layout

ShieldPiPro MkIII User's manual

ShieldPiPro/MkII User's manual

Documents

https://github.com/iancanada/DocumentDownload/tree/master/Adapters/ShieldPiPro

Typical Applications

Upgrade the high performance Audiophonics I-Sabre ES9038Q2M DAC

Improve the TransportPi Digi/II network streamer transport

Upgrade a standard RaspberryPi DAC

Upgrade a basic RaspberryPi DAC or digi streamer transport

Run a FifoPiQ7or FifoPi MA directly without using an additional 3.3V power supply

Run a IanCanada ESS DAC directly without using an additional 3.3V power supply

ShieldPi Pro MkIII works with Raspberry Pi that is equipped with a heatsink