Isolator Unit Design

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

This unit contains the same circuitry as the high-speed receiver board. See the “Performance Pak User’s Guide” (DS50002528), as well as the isolation circuitry (see the following schematics).

Figure 1: Isolator Unit Schematic – ICSPDAT

IsolatorUnit_ICSPDAT.jpg

Figure 2: Isolator Unit Schematic – ICSPCLK

IsolatorUnit_ICSPCLK.jpg

Figure 3: Isolator Unit Schematic – DAT and CLK

IsolatorUnit_DAT_CLK.jpg

Figure 4: Isolator Unit Schematic – Power

IsolatorUnit_Power.jpg

Figure 5: Isolator Unit Schematic – Vdd, Vpp, notMCLR

IsolatorUnit_Vdd_Vpp_MCLR.jpg
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