Vccio level for LVDS IOs

[Altera_Forum]

Hi,  

 AN479 says that LVDS ip & op must be powered with a 2.5V Vccio except: all LVDS inputs for cyclone device are powered by Vccint.    The PCB with a cyclone was designed for other purpose, whose Vccio = 3.3V and Vccint = 1.5V. I am trying to build duplex LVDS comm. bet. the PCB and Cyclone III starter kit. I have some concern on apply those Cyclone's differential pins directly. as the LVDS i/p is powered at 1.5V, while o/p 3.3V. Will that LVDS comm. still be feasible without modifying its power supply? Thanks.   Y.Z.

[Altera_Forum]

AN479 also tells: 

  --- Quote Start ---  Supplying higher than supported voltage to VCCIO for LVDS would violate the rated specifications and may possibly damage the buffer.  --- Quote End ---   Apart from this, operating Cyclone at VCCIO of 3.3V with standard 3R network for LVDS output results in an incorrect common mode level, although it possibly works at lower rates. A 5R network with additional pull-down resistors could achieve correct LVDS levels.

[Altera_Forum]

Thanks. There is another requirement says that the resistor network should placed within 1 inch from the device. However, in my case, it has to be 5 inch, what should I do with the resistor network?