Lvds driver circuit design

Detailed lvds design description lvds single link interface circuit. Lvds, as documented in tiaeia644, can have signal transition time as short as 260 ps turning a printed circuit board trace into a transmission line in a few centimeters. It is the core of the whole circuit, studying the thesis of its principles and structure analysis, i summary the drive circuits strengths and weaknesses of common structure and by using the technology of cmfb to compensation the weaknesses of common structure to achieve 2. Choosing the best transmission standard to accomplish this requires evaluation of many system parameters. This paper presents the design of a lvds inputoutput interface circuit for the next generation of associative memory am chip. Design of a lowpower cmos lvds io interface circuit 1103 a typical bridgedswitched lvds driver behaves as a current source with switched polarity. The bandwidth of associative memories is a critical aspect that needs to be addressed in order to increase the number of. Low voltage differential signaling lvds is a standard for communicating at high speed in point topoint applications. Drive piezoelectric actuators with fast, highpower op. As can be seen by the topology of the driver in figure 2, the circuit operation results in a. The topology is designed to meet the requirements of low. A simultaneousswitchingnoise reduction technique and an autocalibration mechanism are implemented to suppress switching noise and to handle process and environmental variations. The basic lvds interface is a single differential link in either one or both directions.

Multipoint lvds m lvds is a similar standard for multi. This circuit has been used extensively in some lvds receivers 2. Care must be taken when designing with lvds circuits, such as the sn65lvds31 quadruple line driver and sn65lvds32 quadruple line receiver. The bias current ib is switched through the termination resistors according to the data input, and thus produces the correct differential output signal swing. With an inpath circuit design, the r1 and r2 values are chosen so that the value of the internal offset of v id is between 30mv to 50mv. Drive piezoelectric actuators with fast, highpower op amps. Pdf a slew controlled lvds output driver circuit in 0. Each link requires a termination resistor at the far receiver end. This paper presents a novel design topology of a 5 gbps pmosbased low voltage differential signaling lvds voltage mode output driver. Slld009november 2002 lvds application and data handbook 11 chapter 1 data transmission basics data transmission, as the name suggests, is a means of moving data from one location to another.