DS90C402M

The DS90C402M is an integrated quad LVDS transmitter. It is a type of integrated circuit which provides a high speed differential serial link for point‑to‑point data transmission. The device is designed for applications using low voltage differential signaling (LVDS) technology, which ensures high noise immunity and high data rate capability. The DS90C402M allows for high speed data communication between two devices or over a backplane application. This device is useful for a wide range of applications such as chip-to-chip, board-to-board, and panel-to-panel links.

The DS90C402M includes four independent LVDS transmitters with an output common-mode voltage that is adjustable from 400 mV to 1000 mV. The DS90C402M accepts low-voltage TTL/CMOS input data and has a data format that can be either LVPECL (Low Voltage Positive Emitter Coupled Logic) or CML (Current Mode Logic). The power supply voltage is 3.3V, while the data input voltage range is from 0 to 3.3V. The data lines of the DS90C402M are connected to an LVDS ASIC which provides pre-emphasis and differentially converts the LVDS signals for serial transmission.

The DS90C402M offers excellent signal characterization, controlled impedance on parallel edges for improved signal integrity and adjustable output common mode voltage for best performance. The differential output interface of the device is designed to minimize the impact of external modal noise, data jitter and noise coupling from adjacent differential switchingpair. Additionally, the device features low power dissipation and an integrated low-dropout regulator for improved efficiency. All of these features help to ensure reliability and high performance in data transmission.

The primary benefit of the DS90C402M is its ability to provide a high performance, low voltage, and full duplexed LVDS solution. Additionally, the device is highly compatible with a variety of microcontrollers, DSPs and ASICs. Furthermore, the device provides low-skew parallel inputs for improved timing accuracy and stability, as well as improved signal integrity. The device is also available in a range of packages such as TO-220, SOIC, VSON, LQFP and QFN, in order to meet a variety of package requirements.

The working principle of the DS90C402M is as follows. The LVDS drivers accept low voltage TTL/CMOS logic signals, and then convert them into differential LVDS signals. The LVDS drivers are then connected to a low voltage positive emitter coupled logic (LVPECL) or current mode logic (CML) device which provides pre-emphasis and differential conversion of the LVDS signals. The differential outputs of the LVDS drivers are then connected to an LVDS ASIC, and the LVDS signals are transmitted serially. The device also features a low voltage differential signaling (LVDS) interface, which uses low voltage splitting of the differential signal, which results in improved signal integrity and higher data rate capability.

Overall, the DS90C402M is a versatile LVDS transmitter providing excellent signal characterization, low Power consumption and adjustable output common mode voltage for high performance and reliable data transmission. It has a wide range of applications from chip-to-chip interfaces, board-to-board communications and panel-to-panel links. The device is available in different packages, allowing for greater compatibility and flexibility in use. Additionally, the working principle of the DS90C402M enables improved signal integrity, low power consumption and higher data rate capability.