Special ICs in digital switching-an overview

Rosenbaum, S.D.

doi:10.1109/jssc.1981.1051585

Cited by 4 publications

(1 citation statement)

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“…This circuit is used in front end of telephony system to send (receive) speech signals on (from) the line and perform several signal conditioning or processing such as: impedance matching (HZ), hybrid balancing (HB), longitudinal balancing (LB), 2-wire-4-wire conversions (2W-4W), line-driving (LD), in definite insertion and return loss (IL, RL), and so on. This requires several ac or dc feedback loops, makes the design of a high performance and robust system rather complex [1][2][3][4]. This will become more evident if wide variation of line impedance is included.…”

Section: Introductionmentioning

confidence: 99%

Structured Design of Integrated Subscriber Line Interface System and Circuit

Tajalli

Atarodi²

2005

Analog Integr Circ Sig Process

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A structured design of Subscriber Line Interface System and Circuit will be described. A high level synthesis allows extracting overall system and circuit requirements to satisfy the desired specifications, standards, and a robust implementation. For this purpose, first the output driving stage will be analyzed and then, dc, ac, and longitudinal balance feedbacks will be considered. Then based on extracted system specifications, optimum circuit design of line-driver will be described. High-level design of line-driver as the most important circuit block which is optimized for stability, accuracy, area, and power dissipation will be elaborated.

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Section: Introductionmentioning

confidence: 99%