Re: Mixed signal IC design
Not really agree with previous forumers.
You can do both analog and digital parts in Cadence Virtuoso and Spectre. However, it is unlikely to do the complex digital component in Cadence Virtuoso and Spectre. Usually simple digital components like latches for latched Flash A/D converter, or back-to-back inverters as memory, or other simple digital components.
The analog components are done in Cadence.
Mixed-Signal can be RF-Analog or Analog-Digital. Such would be PLL, A/D and D/A converters.