Can Eldo RF and Questa ADMS work together?
A – Yes. The solution is called Questa ADMS RF. The product is often abbreviated as “ADMS RF”. ADMS RF basically offers support for the SST and MODSST algorithms inside ADMS. This targets designs having an analog/RF content plus a purely digital (VHDL-D or Verilog-D) content. The user interface is the regular ADMS interface. See the ADMS RF datasheet for further details. Analog behavioral models in VHDL-AMS or VerilogA (for example those from CommLib RF) can also be used, with some restrictions. ADMS RF allows partitioning of the circuit into TRAN and MODSST partitions. The TRAN partitions are simulated with the regular transient algorithm of Eldo, and the MODSST are simulated using the Modulated Steady-Sate algorithm. The TRAN partitions are assigned to baseband blocks, whereas the MODSST partitions contain the high speed RF blocks. Note that ADMS RF is an option ‘on top’ of ADMS. It has ADMS and Eldo RF as prerequisites.
