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Real-Time VD and Variation-Aware Clock Jitter Simulations
Clock FX’s unique cell modeling delivers SPICE accuracy timing for any voltage or variation condition with a single library. Clock FX has a fully threaded and distributed architecture, with the ability to scale to thousands of CPUs.
Electro-Thermal Design of Semiconductors & Power Converters for EPS Architecture
Automatically Identify and Simulate all Clock Paths in a Design
✔ Clock Mesh Handling
✔ DvD Sign-off Flow
✔ Native DvD Handoff
✔ Clock Mesh Handling
✔ Clock Jitter Analysis
✔ Simulate Entire Clock
SoC incorporates Multiple Processes, Voltages, Temperature Corners and Scenarios.
Clock FX (SoC Software) mines the dynamic voltage drop on the clock network produced by RedHawk-SC to calculate clock jitter with SPICE-level accuracy. In addition, the software also accounts for accurate multi-voltage analysis and simulates the delay impact of supply variation on the clock paths.
- Clock FX (SoC Software) handles transistor level effects such as voltage drop and ground bounce separately.
- This enables accurate timing at ultralow voltages where margins are razor thin and variability is severe.
- Clock FX (SoC Software) automatically identifies and simulates all the clock paths in the design using standard cell models or transistor-level SPICE models.
- Its full waveform propagation provides the accuracy needed to get reliable results at ultralow voltage and advanced processes.
- Clock FX (SoC Software) is tightly integrated with the Ansys sign-off power analysis tool RedHawk-SC to obtain the dynamic voltage drop for simulation.
- With the duo synchronized, the database generates a rich set of jitter reports covering various jitter types.
- Clock FX (SoC Software) is threaded and distributed, dramatically reducing turnaround time and memory requirements, compared to Monte Carlo SPICE.
- To study and compare the timing jitter (TJ) characteristics, our simulations deploy four core experimental schemes including hybrid mode-locking (HML), ML subject to opto-electrical feedback (OE FB), ML subject to all-optic feedback (AO FB), and ML subject to optical pulse train injection (OPTI).
- These simulation parameters (if selected) are used to emphasize the role of the timing interaction of the pulses of master and slave MLL and to distinguish from continuous-wave injection.
Clock FX (SoC Software) leverages the SPICE transistor models and full waveform propagation to provide the accuracy needed to get reliable results at ultra-low voltage for advanced processes. Miller-capacitance and other effects are handled correctly, with no shortcuts.
Core database including (but not limited to):
Power supplies
- Battery, Cell, Ground, Voltage Rail, Zero Volt Rail, Variable Input Voltage, DC Voltage Source, AC Voltage Source, Current Source, Fuse, Voltage Regulator
Input components
- Push-to-Make switch, Push-to-Break switch, SPST switch, DPDT switch, Variable Resistor, Potentiometer, LDR, Thermistor (300R to 100K at 25°C), Phototransistor, Opto-Isolator, Crystal Oscillator (32.768KHz to 24.576MHz), SPDT switch, and DPST switch.
Passive components
- Resistors, Resistor Packs, SIL resistors, Capacitor, Electrolytic Capacitor, Inductor, Transformer (Centre-tapped), Variable Capacitor and Variable Inductors.
Discrete semiconductors
- Diode, Bridge Rectifier, NPN Transistor, PNP Transistor, N-Channel MOSFET, P-Channel MOSFET, N-Channel JFET, P-Channel JFET, Zener Diode, and Thyristor (SCR).
Logic gates
- Clock, Input, Output, NOT (Inverter), AND, OR, NAND, NOR, XOR, XNOR, Schmitt Inverter, Schmitt NAND. As well as Connectors including, Rail, Terminals, SILs, and DILs.
Integrated circuits (ICs)
- 4000B series, 74LS series, 74HC series, 555 timer, Dot/Bar Display Driver, L293D half-H driver, ULN2003 and ULN2803 darlington array drivers, and Operational Amplifiers.
Output components
- Bulb, Lamp, Buzzer, Loudspeaker, Motor, SPDT Relay, DPDT Relay, Flashing LED, Bi-Colour LED, Tri-Colour LED, 7-Segment Display, Dual 7-Segment Display, 16-Segment Display, Bargraph Display, 5×7 Matrix Display, Solenoid, and Core LEDs.