SDI7 module theory of operation
Figure 14-1: Simplifi ed block diagram of the SDI7 Generator module
Power supplies
There are three switching supplies, and several linear supplies in the module.
Most of the power for the module comes in as 5 V and is converted to the voltage
needed by the switching supplies. The mainframe supplies a small amount of
3.3 V for the processor interface, but the bulk of the 3.3 V used on the board
is pr
oduced by the switching supply.
There are also 1.8 V and 1.2 V s upplies, which are used for the memory and
FPG
A cores.
14–12 TG8000 Multiformat Test Signal Generator Service Manual
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