M1AFS600-PQ208 Datasheet, PDF (101/334 Pages) Microsemi Corporation – Fusion Family of Mixed Signal FPGAs

Fusion Family of Mixed Signal FPGAs
Voltage Monitor
The Fusion Analog Quad offers a robust set of voltage-monitoring capabilities unique in the FPGA
industry. The Analog Quad comprises three analog input pads— Analog Voltage (AV), Analog Current
(AC), and Analog Temperature (AT)—and a single gate driver output pad, Analog Gate (AG). There are
many common characteristics among the analog input pads. Each analog input can be configured to
connect directly to the input MUX of the ADC. When configured in this manner (Figure 2-66), there will be
no prescaling of the input signal. Care must be taken in this mode not to drive the ADC into saturation by
applying an input voltage greater than the reference voltage. The internal reference voltage of the ADC is
2.56 V. Optionally, an external reference can be supplied by the user. The external reference can be a
maximum of 3.3 V DC.
Off-Chip
Pads
On-Chip
AV
Voltage
Monitor Block
Prescaler
AC
Current
Monitor Block
AG
Gate
Driver
AT
Temperature
Monitor Block
Analog Quad
Prescaler
Prescaler
Digital
Input
Digital
Input
Current
Monitor / Instr
Amplifier
Power
MOSFET
Gate Driver
To FPGA
(DAVOUTx)
To Analog MUX
Figure 2-66 • Analog Quad Direct Connect
To FPGA
(DACOUTx)
From FPGA
(GDONx)
To Analog MUX
Digital
Input
Temperature
Monitor
To FPGA
(DATOUTx)
To Analog MUX
Revision 4
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