Lvcmos vs lvds driver

An lvds driver, such as the ds90lv011a, accepts a singleended lvttl lvcmos input and translates it to a differential lvds output, as shown in figure 1. Which is the best output signal for your application. Accoupling between differential lvpecl, lvds, hstl, and cml. One of the most important choices an rf engineer will make is deciding what kind of output signal is the best fit for the project theyre working on. An lvds receiver such as the ds90lv012a, on the other hand, accepts a differential lvds input and translates it to a singleended lvttl lvcmos output. Differential input voltage threshold less than 50 mv. Lowvoltage differential signaling with typical output voltages of 350 mv into a 100. Analog devices portfolio of low voltage differential signaling lvds drivers and receivers offers designers robust, high speed signaling singleended to. Texas instruments lvds interface ic are available at mouser electronics. Cmos, hcmos, lvcmos, sinewave, clipped sinewave, ttl, pecl, lvpecl, lvds, cmloscillators and frequency control devices.

Since converter resolution and speed have increased, there is a growing demand for a more efficient interface, which has caused a strong shift toward using jesd204b. Lvttl and lvcmos were developed as a direct result of technology. Cmllvdslvpecl to lvcmoslvttl translation voltage levels. Low voltage differential signaling lvds driversreceivers. This video provides an overview of lvds technology, explains how the lvds driver, receiver and buffer operate, and clarifies the difference between lvds and other interfaces. Lvpecl is derived from ecl and pecl and typically uses 3. Slla120 interfacing between lvpecl, vml, cml, and lvds levels 5. Whats the difference between lvcmos, lvttl and lvds. Max9160 lvds or lvttllvcmos input to 14 lvttllvcmos.

The output of an ecl device is taken from an emitter, and is normally about 50 since the source impedance of the driver was a close match to most transmission. Lvds uses this difference in voltage between the two wires to encode the information. In this whole work, we are using three different classes of lvcmos namely lvcmos15, lvcmos18 and. The current texas instruments serial gigabit solution device that has an integrated lvpecl driver is the tnete2201 device. Engineers and system designers now have three options to consider when designing in their fpgatoconverter links lowvoltage differential signaling lvds, cmos and jesd204b. Pll bypass mode can be used to buffer the input clock on any of the outputs or all of the outputs. The max9160 125mhz, 14port lvttllvcmos clock driver repeats the selected lvds or lvttllvcmos input on two output banks. Sn65lvds1, accepts a single ended lvttllvcmos input and translates it to a differential lvds output, as shown.

The design of the sstl driver is not so much different than that of the lvttl driver. Cmllvdslvpecl to lvcmoslvttl translation voltage levels are available at mouser electronics. Lvds driver lvds receiver vbb z 50o w z 50o w 50 w 50 w e. Interfacing between lvpecl, vml, cml and lvds levels. Lowvoltage differential signaling, or lvds, also known as tiaeia644, is a technical standard. Sn65lvds4 500mbps lvds single highspeed transceiver. Lvcmos vs lvds for interfacing a virtex4 sx35 to dac jump to solution my understanding is that the lvds signals come from the fpga, travel about 3 inches most of the net length then end at the receiver chip which is placed right next to the dac.