HC4GX15 Datasheet, PDF (154/668 Pages) Altera Corporation – HardCopy IV Device Handbook

11–4
Chapter 11: Power Supply and Temperature Sensing Diode in HardCopy IV Devices
Supporting HardCopy IV and Stratix IV Power Supplies
Figure 11–1. HardCopy IV E Power Management Example
VIN
Voltage Regulator
(Termination)
Voltage Regulator (V_CC)
Fixed (0.9 V)
Voltage Regulator (V_{CCD_PLL})
Fixed (0.9 V)
V_CC
V_{CCD_PLL}
HardCopy IV E
User I/O
Termination
Resistor
Voltage Regulator (V_CCIO)
I/O (2.5 V)
Voltage Regulator (V_CCPD)
2.5 V
Voltage Regulator
(V_CCPGM)
Fixed (2.5 V)
Voltage Regulator (V_{CC_CLKIN})
Fixed (2.5 V)
Voltage Regulator (V_CCAUX)
Fixed (2.5 V)
Voltage Regulator
(V_{CCA_PLL})
Fixed (2.5 V)
V_CCIO
V_CCPD V_CCPGM V_{CC_CLKIN} V_CCAUX V_{CCA_PLL} V_REF
Voltage
Reference
Figure 11–2 and Figure 11–3 show examples of power management in three different
data rates of a HardCopy IV GX device.
1 Some power supplies can be combined and driven by the same linear
regulator with isolation filters.
HardCopy IV Device Handbook, Volume 1
© January 2010 Altera Corporation