Improved techniques for the synthesis and layout of mixed analog digital ASICs

Trontelj, Janez; Trontelj, L.; Pleteršek, Anton; Vodopivec, Aleš; Strle, Drago; Shenton, G.

doi:10.1109/easic.1990.207923

Cited by 2 publications

(5 citation statements)

References 1 publication

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“…We discussed in Doboli and Vemuri [1999a] the conditions under which for and loop statements can be translated into semantically equivalent SFG structures. Loop instructions are useful for describing multi-channel systems, like the dual tone multiple frequency decoder (DTMF) [Trontely et al 1989]. DTMF includes a bank of eight filters and amplitude detectors to recognize the presence of a certain tone.…”

Section: Vhdl-ams [Ieee;mentioning

confidence: 99%

“…The telephone set [Trontely et al 1989] should work in a reduced audio bandwidth (300 Hz to 3600 Hz). The transmitter amplifies the incoming audio signal from the caller.…”

Section: Telephone Receiver and Transmittermentioning

confidence: 99%

“…We briefly discussed the VHDL-AMS subset for synthesis. We used an analog telephone set [Trontely et al 1989] as an illustrative example. A more detailed description of the telephone set is provided in Section 8.…”

Section: Library-based Approach To System Synthesismentioning

confidence: 99%

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A two-layer library-based approach to synthesis of analog systems from VHDL-AMS specifications

Doboli

Dhanwada

Nunez-Aldana

et al. 2004

ACM Trans. Des. Autom. Electron. Syst.

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This paper presents a synthesis methodology for analog systems described using VHDL-AMS language. Synthesis produces net-lists of analog components that are selected from a library, and sized so that specified objectives (like AC response, signal to noise ratio, dynamic range, area) are optimized. The gap between abstract specifications and implementations is bridged using a two-layered methodology. The first layer is architecture generation. The second layer is component synthesis and constraint transformation. Architecture generation employs the branch-and-bound algorithm to create architectural alternatives for a system. Component synthesis and constraint transformation use a directed interval based genetic algorithm that operates on parameter ranges. The performance estimation engine embeds technology process parameters, SPICE models for basic circuits, and symbolic composition equations for basic structural configurations. The paper discusses the VHDL-AMS subset for synthesis. The subset offers the composition semantics. As a result, specifications offer sufficient insight into the system structure to allow automated architecture generation. To justify the flexibility of the methodology, the paper presents results for three case studies, a signal conditioning system, a filter, and an analog to digital converter. Experiments show that constraint-satisfying designs can be synthesized in a short time, at a low cost, and without requesting broad knowledge on analog circuits.

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Section: Vhdl-ams [Ieee;mentioning

confidence: 99%

“…The telephone set [Trontely et al 1989] should work in a reduced audio bandwidth (300 Hz to 3600 Hz). The transmitter amplifies the incoming audio signal from the caller.…”

Section: Telephone Receiver and Transmittermentioning

confidence: 99%

See 1 more Smart Citation

A two-layer library-based approach to synthesis of analog systems from VHDL-AMS specifications

Doboli

Dhanwada

Nunez-Aldana

et al. 2004

ACM Trans. Des. Autom. Electron. Syst.

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show abstract

“…We illustrate the successive synthesis steps by referring to a much simplified version of the receiver module of a telephone set [20]. The receiver provides an audible output signal to the earphone of the telephone set.…”

Section: Synthesis Approachmentioning

confidence: 99%

“…This is important as components of a mixed-signal system tend to have very heterogeneous performances. For example, the analog part of a telephone set [20] includes two modules, a receiver and a transmitter, with different noise constraints.…”

mentioning

confidence: 99%

Towards a specification notation for high-level synthesis of mixed-signal and analog systems

Doboli¹,

Vemuri²

Proceedings 2000 IEEE/ACM International Workshop on Behavioral Modeling and Simulation

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This paper discusses aBlox -a specification notation that we defined for automated synthesis of mixed-signal systems. aBlox addresses two important aspects of mixed-signal system specification: (1) description of functionality and performance issues and (2) expression of analog-digital interactions. The semantics of aBlox embeds concepts and rules of a computational model that we developed for mixed-signal systems. Finally, the paper shows some mixed-signal specifications that we developed in aBlox.

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Improved techniques for the synthesis and layout of mixed analog digital ASICs

Cited by 2 publications

References 1 publication

A two-layer library-based approach to synthesis of analog systems from VHDL-AMS specifications

A two-layer library-based approach to synthesis of analog systems from VHDL-AMS specifications

Towards a specification notation for high-level synthesis of mixed-signal and analog systems

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