Forum Discussion
Oliver_I_Sedlacek
Contributor
ContributorCyclone IV GX LVDS placement and termination
I need to place 48 LVDS receiver pairs on to a 484 pin Cyclone IV GX package. I've been studying the Cyclone 4 handbook, specifically section 6 Table 6.2 and I'm still confused. 1. According to this...
- Hi,
1. "true LVDS" refers to transmitters, these banks support LVDS TX IO-standard, the other banks support only emulated LVDS with three resistor network. LVDS RX can be configured for all banks.
2. Cyclone III, IV and 10LP doesn't provide on-chip parallel termination (Rd) for LVDS RX. External 100 ohm resistors are required.
AqidAyman_Altera
Regular Contributor
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