A few years ago, digital synthesis was oblivious about the back end process. Gate delays swamped wire delays and the impacts of layout were pretty small. But as geometries shrank, the effects of the interconnect became more pronounced, to the point of becoming dominant. At that point synthesis had to go physical. Analog synthesis has always being a bit of a tricky area, but it appears as if Magma may be making some headway. In an announcement today they claim that their Titan™ Analog/Mixed-Signal (Titan AMS) Design Platform organically integrates both electrical design and physical design into one unified design methodology.
The flow they have constructed includes front-end design such as schematics to circuit optimization in Titan Analog Design Accelerator (Titan ADX) to back-end design such as placement and routing in Titan Analog Virtual Prototyper (Titan AVP) and Titan Shape-Based Router (Titan SBR). The entire flow is based on a single database.
Here are some details that they provide about the new release which is available now:
Titan AMS Design Platform: Improving Analog/Mixed-Signal Design Productivity and Enabling Reuse At the heart of the Titan AMS Design Platform is an advanced analog design acceleration technology that consists of Magma’s proprietary FlexCell-based circuit optimization, analog virtual prototyping, floorplanning and placement and constraint-driven shape-based routing. Complementary to this acceleration technology, Titan also provides a comprehensive AMS design environment that includes the Schematic Editor (SE), Analog Simulation Environment (ASE) with FineSim, Schematic-Driven Layout (SDL), Layout Editor (LE) and Physical Validation (PV).
Titan ADX and FlexCells - Magma’s Titan ADX and FlexCell models greatly improve productivity, accelerating the creation of new analog IP and simplifying analog IP reuse. A FlexCell represents a circuit in a mathematical, parameterized model format that includes circuit topology, functionality and physical information such as resistance and capacitance. Because they are process independent, modular and reusable, FlexCells can be easily targeted to new process technologies and optimized for different design specifications. After optimization, Titan ADX outputs a schematic with a netlist that meets the design specifications across multiple process, voltage and temperature (PVT) corners. FlexCell models include testbenches, allowing further validation of the netlist using Magma’s FineSim SPICE simulator.
Titan AVP and Titan SBR - Magma’s Titan AVP and Titan SBR take the Titan ADX optimized design (netlist) and automatically place and route it to meet design specifications and constraints. Titan AVP takes hybrid placement in area/row/stack-based requirements into consideration and supports a wide variety of constraints for pins, devices, cells and blocks to achieve optimal global placement results. Titan SBR is architecture-friendly, easily extending support for any new routing topology and constraints. Its trademark high-quality routing includes detailed RC matching, river route, differential pair with 45 degree twisted tri-bit routing, bus routing with shielding, double cut via for high reliability, and balanced-skew clock tree routing. Titan SBR is also widely used with Magma’s digital implementation tool Talus for top-level routing and chip finishing.
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