Grass Valley 8920DAC - Manual (Page 25)

8920DAC Instruction Manual 19
Functional Description
Regulator
The 8920DAC’s power is fed from ±12V rails of the frame’s power supply.
Power comes into the module, is fused, and then split into analog and
digital paths.
Each stage of the DAC receives its own separate, highly regulated and fil-
tered power source. The following power feeds are produced:
■ Digital +5V for micro-controller,
■ Digital +3.3V for FPGA, DAC and other digital sections,
■ PLL +5V for AES receiver,
■ DAC analog +5V
■ Analog ±10V for filter and differential receiver stage, and
■ Analog±12V for final gain and driver stage.