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PX1011A/PX1012A Power Management and Thermal FAQ

Q Do the PX1011A and PX1012A require a special power-up sequence?
A No. There is no power order requirement.
Q What is the L2 power management state?
A The L2 power management state is an optional sleep state where the entire system, with the exception of the wakeup circuitry, is powered down.
Q What is the beacon wakeup mechanism?
A The beacon wakeup mechanism is an in-band signaling used to initate wakeup from the L2 power management state. The PCI Express specifications for various card and cable form factors recommend the optional use of beacon as a wakeup mechanism. A second wakeup mechanism in L2 model, the WAKE# signal, is mandatory in all card applications that support L2. For PCI Express cable applications that support L2, CWAKE signal is mandatory.
Q How do the PX1011A and PX1012A support the L2 state without the beacon wakeup mechanism?
A There are no features in either product that specifically support L2 mode; however, they can be used in a system that supports L2 mode using the WAKE# wakeup mechanism.
Q Is the power dissipation of the NXP PCIe PHY low enough for ExpressCard applications?
A Yes. In L0 normal mode, the PX1011A and PX1012A typically dissipate less than 300mW including I/O. The low power, along with a thin and small LFGBA-81 package, makes them well suited to ExpressCard applications.
Q Are the PX1011A and PX1012A rated for industrial temperatures?
A The PX1011A and PX1012A are available in a commercial temperature range only (0 to 70°C). We also have the PX1011AI and PX1012AI for the industrial temperature range(-40 to 85°C).

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