DS160PR410 PCI-Express Linear Redriver
Texas Instruments DS160PR410 PCI-Express Linear Redriver is a four-channel, low-power, high-performance linear repeater/redriver designed to support PCI Express (PCIe) Generation 1.0, 2.0, 3.0, and 4.0. The device is a protocol-agnostic linear redriver that can operate for interfaces up to 25Gbps, including Ultra Path Interface (UPI) 2.0. The DS160PR410 receivers deploy continuous-time linear equalizers (CTLE) to provide a programmable high-frequency boost. The equalizer can open an input eye completely closed due to inter-symbol interference (ISI) induced by an interconnect medium, such as PCB traces. The CTLE receiver is followed by a linear output driver. The linear data paths of Texas Instruments DS160PR410 preserve the transmit preset signal characteristics. The linear redriver becomes part of the passive channel that, as a whole, gets link trained for optimum transmit and receive equalization settings. This transparency in the link training protocol results in an excellent electrical link and the lowest possible latency. The programmable equalization of the device, along with its linear datapaths, maximizes the flexibility of physical placement within the interconnect channel and improves overall channel performance. The programmable settings can be applied easily through software (SMBus or I2C), direct loading from an external EEPROM, or pin control. In EEPROM mode, the configurations are automatically loaded on power-up, eliminating the need for an external microprocessor or software driver.
