LMH0041SQE/NOPB

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Introduction

The LMH0041SQE/NOPB is a fully integrated serializer/deserializer solution designed to simplify the design of high speed serial link systems. It is a single device solution for serialization and deserialization, which performs all the necessary functions for digital communication in a single package. The LMH0041SQE/NOPB enables the fast, reliable, and low-power design of serial data streams.

Applications

The LMH0041SQE/NOPB is ideal for a wide range of applications, including high-speed Serialization and Deserialization, Serial Peripheral Interface (SPI) communication, proprietary data link, and Time-Division Multiplexed (TDM) applications. It supports high-speed serial LVPECL, Low Voltage Differential Signal (LVDS), CML signals and is compatible with a variety of serial data protocols, such as the SPI bus, the 8B/10B code protocol, the jumbo frame protocol and the Fibre Channel protocol.

The LMH0041SQE/NOPB can also be used in applications such as industrial automation, military, medical imaging, and consumer electronics. Additionally, the device can be used in high-speed data converter systems such as JESD204B, JESD204C, and Serial RapidIO®.

Features

The LMH0041SQE/NOPB features various integrated functions such as a thermal protection circuit, an LVCMOS I/O for easy control of data flow, PLLs for frequency synthesis, and a 3-tap finite impulse response (FIR) Adaptive Transmit Equalizer (ATE) to compensate for channel impairments. In addition, the device offers selectable data rates from 191 Mbps to 6.25 Gbps, and its configuration registers are accessible through a serial bus compatible with the I2C bus.

Working Principle

The LMH0041SQE/NOPB employs a serial-to-parallel conversion process to transmit serial data between two devices. During this process, two sets of input data lanes are operated independently, adding flexibility to its serializer design. The device utilizes a four-pin LVCMOS I/O for the data channels, allowing it to be connected directly to the host processor, a high-speed FPGA, or an ASIC.

The LMH0041SQE/NOPB also supports Reverse Optimized Link Layer Control (ROLLC) protocol to comply with the JEDEC JESD204C standard. The ROLLC bus control interface is used to configure the device’s operating parameters and to trigger data transfers between devices. Furthermore, the device supports host-initiated framing and link-initiated data transfers to ensure greater system flexibility.

The LMH0041SQE/NOPB serializer is built with adjustable PLL filters and switchable termination resistors to accommodate various source clock frequencies. It also features a flexible power supply design that supports dual-voltage configurations for greater power savings.

Conclusion

The LMH0041SQE/NOPB is a powerful and cost-efficient serializer/deserializer solution designed for high speed serial link systems. It features integrated functions for thermal protection, frequency synthesis, and Adaptive Transmit Equalizer (ATE) that support data rates from 191 Mbps to 6.25 Gbps. The device is compatible with SPI bus, 8B/10B code protocol, jumbo frame protocol and Fibre Channel protocol, and supports the JEDEC JESD204C and Serial RapidIO® standards. Additionally, the LMH0041SQE/NOPB supports host-initiated framing and link-initiated data transfers, adjustable PLL filters, switchable termination resistors and dual-voltage operation for greater system flexibility.

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