The SN75LVPE802 is a versatile dual channel, SATA Express
signal conditioner supporting data rates up to 8 Gbps. The device supports SATA Gen 1, 2, and 3
specifications as well as PCIe 1, 2, 3. The SN75LVPE802 operates from a single 3.3-V supply and has
100-Ω line termination with self-biasing feature, making the device suitable for AC coupling. The
inputs incorporate an out-of-band (OOB) detector, which automatically squelches the output when the
input differential voltage falls below threshold while maintaining a stable common-mode voltage.
The device is also designed to handle spread spectrum clocking (SSC) transmission per SATA
The SN75LVPE802 handles interconnect losses at its input with selectable equalization
settings that can be programmed to match the loss in the channel. For data rates of 3 Gbps and
lower, the SN75LVPE802 equalizes signals for a span of up to 50 inches of FR4 board material. For
data rates of 8 Gbps, the device compensates up to 40 in of FR4 material. The equalization level is
controlled by the setting of the signal control pin EQ.
Two de-emphasis levels can be selected on the transmit side to provide 0 or 1.2 dB of
additional high- frequency loss compensation at the output.
The device is hot-plug capable (requires 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.