afs600 Actel Corporation, afs600 Datasheet - Page 100
afs600
Manufacturer Part Number
afs600
Description
Actel Fusion Programmable System Chips Mixed-signal Family With Optional Arm Support
Manufacturer
Actel Corporation
Datasheet
1.AFS600.pdf
(296 pages)
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Temperature Monitor
The final pin in the Analog Quad is the Analog
Temperature (AT) pin. The AT pin is used to implement an
accurate temperature monitor in conjunction with an
external diode-connected bipolar transistor
For improved temperature measurement accuracy, it is
important to use the ATRTN pin for the return path of the
current sourced by the AT pin. Each ATRTN pin is shared
Figure 2-76 • Temperature Monitor Quad
2 -8 6
Actel Fusion Programmable System Chips
Off-Chip
On-Chip
Pads
AV
Digital
Prescaler
Input
Monitor Block
Voltage
(DAVOUTx)
To FPGA
To Analog MUX
Monitor / Instr
AC
Amplifier
Digital
Prescaler
Current
Input
(Figure
Monitor Block
(DACOUTx)
Current
To FPGA
Analog Quad
2-76).
A d v a n c e d v 1 . 4
To Analog MUX
between two adjacent Analog Quads. Additionally, if not
used for temperature monitoring, the AT pin can provide
functionality similar to that of the AV pad. However, in
this mode only positive voltages can be applied to the AT
pin, and only two prescaler factors are available (16 V and
4 V ranges—refer to
Gate Driver
From FPGA
(GDONx)
MOSFET
Power
AG
Driver
Gate
Table 2-54 on page
AT
Temperature
Digital
Input
Monitor
Prescaler
Monitor Block
Temperature
Transistor
Discrete
Bipolar
(DATOUTx)
To FPGA
2-115).
ATRTN
To Analog MUX
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