Isolator Unit Design

The isolator is a bridge where electrically hot signals are passed through transparently to the emulator. The In-Circuit Serial Programming (ICSP) interface signals are magnetically or optically isolated, providing up to 2.5 kV equivalent isolation protection. The isolator is housed in its enclosure, providing an additional measure of safety.

This unit contains the same circuitry as the high-speed receiver board. See the Performance Pak for the MPLAB® REAL ICE™ In-Circuit Emulator User’s Guide (DS50002528), as well as the isolation circuitry (see the following schematics).

IsolatorUnit_ICSPDAT.jpg
Figure 1: Isolator Unit Schematic – ICSPDAT
IsolatorUnit_ICSPCLK.jpg
Figure 2: Isolator Unit Schematic – ICSPCLK
IsolatorUnit_DAT_CLK.jpg
Figure 3: Isolator Unit Schematic – DAT and CLK
IsolatorUnit_Power.jpg
Figure 4: Isolator Unit Schematic – Power
IsolatorUnit_Vdd_Vpp_MCLR.jpg
Figure 5: Isolator Unit Schematic – Vdd, Vpp, not MCLR
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