DK-DEV-5SGXEA7/ES Altera, DK-DEV-5SGXEA7/ES Datasheet - Page 360

• Manufacturer Part Number: DK-DEV-5SGXEA7/ES
• Description: KIT DEV STRATIX V FPGA 5SGXEA7
• Manufacturer: Altera
• Series: Stratix® Vr
• Type: FPGAr

Specifications of DK-DEV-5SGXEA7/ES

• Contents: Board
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: Stratix® V 5SGXEA7
• Other names: 544-2725

12–4
Table 12–2. Internal Temperature Sensing Diode Specification
Stratix V Device Handbook Volume 2: Device Interfaces and Integration
–40°C to 100°C
Note to
(1) Pending on silicon characterization.
Temperature
Range
Table
Internal Temperature Sensing Diode
External Temperature Sensing Diode
12–2:
f
f
Accuracy
±8°C
You can use the Stratix V internal TSD in two different modes of
operations—power-up mode and user mode. For power-up mode, the internal TSD
reads the die’s temperature during configuration if you enable the ALTTEMP_SENSE
megafunction in your design. The ALTTEMP_SENSE megafunction allows
temperature sensing during device user mode by asserting the clken signal to the
internal TSD circuitry. To reduce power consumption, disable the internal TSD with
built-in ADC circuitry when not in use.
Table 12–2
For more information about using the ALTTEMP_SENSE megafunction, refer to the
Thermal Sensor (ALTTEMP_SENSE) Megafunction User
The external temperature sensor steers bias current through the Stratix V external
TSD, which measures forward voltage and converts this reading to temperature in the
form of an 8-bit signed number (7 bits plus sign). The 8-bit output represents the
junction temperature of the Stratix V device and can be used for intelligent power
management.
The Stratix V external TSD requires two pins for voltage reference.
how to connect the external TSD with an external temperature sensor device, allowing
external sensing of the Stratix V die temperature. As an example, you can connect
external temperature sensing devices, such as MAX1619, MAX1617A, MAX6627, and
ADT 7411 to the two external TSD pins for Stratix V device die temperature reading.
Figure 12–1. TSD External Pin Connections for Stratix V Devices
For more information about the external TSD specification, refer to the
Switching Characteristics for Stratix V Devices
(1)
lists the internal TSD specification.
Calibrated
Option
Offset
No
Stratix V Device
External TSD
1 MHz, 500 KHz
Sampling Rate
TEMPDIODEN
TEMPDIODEP
Conversion
< 100 ms
chapter.
Time
Chapter 12: Power Management in Stratix V Devices
Temperature
Guide.
External
Sensor
Resolution
8 bits
May 2011 Altera Corporation
Temperature Sensing Diode
Figure 12–1
Missing Codes
DC and
Resolution
Minimum
with no
8 bits
shows