TEXAS INSTRUMENTS TI LVC601 Two-Channel SATA 6-Gb/s Redriver Chip

The SN75LVCP601 is a dual-channel, single-lane SATA redriver and signal conditioner supporting data rates up to 6 Gbps. The device complies with SATA physical link 2m and 3i specifications. The SN75LVCP601 operates from a single 3.3-V supply and has 100-Ω line termination with a self-biasing feature, making the device suitable for ac coupling. The inputs incorporate an out-of-band (OOB) detector, which automatically squelches the output while maintaining a stable common-mode voltage compliant to the SATA link. The device is also designed to handle spread-spectrum clocking (SSC) transmission per the SATA specification. The SN75LVCP601 handles interconnect losses at both its input and output. The input stage of each channel offers selectable equalization settings that can be programmed to match the loss in the channel. The differential outputs provide selectable de-emphasis to compensate for the distortion that the SATA signal is expected to experience. The level of equalization and de-emphasis settings depends on the length of interconnect and its characteristics. Both equalization and de-emphasis levels are controlled by the setting of signal control pins EQ1, EQ2, DE1, and DE2. The device is hot-plug capable (requires the use of ac-coupling capacitors at differential inputs and outputs), preventing device damage under device hot-insertion, such as async signal plug/removal, unpowered plug/removal, powered plug/removal, or surprise plug/removal.