DS125RT410SQE/NOPB

具有自适应 EQ 和 CDR 的 9.8Gbps 至 12.5Gbps 四通道重定时器 48-WQFN -40 to 85

The DS125RT410 is a four-channel retimer with integrated signal conditioning. The device includes a fully adaptive continuous-time linear equalizer CTLE, clock and data recovery CDR, and a transmit de-emphasis DE driver to enable data transmission over long, lossy and crosstalk-impaired highspeed serial links to achieve BER < 1 × 10–15. For channels with a high amount of crosstalk, the DS125DF410 should be used because it has self calibrating 5-tap decision-feedback equalizer DFE.

Each channel can independently lock to data rate from 9.8 to 12.5 Gbps, and associated subrates divide by 2, 4, and 8 to support a variety of communication protocols. A 25-MHz crystal oscillator clock is used to speed up the CDR lock process. This clock is not used for training the PLL and does not need to be synchronous with the serial data.

The programmable settings can be applied using the SMBus I2C interface, or they can be loaded through an external EEPROM. An on-chip eye monitor and a PRBS generator allow real-time measurement of high-speed serial data for system bring-up or field tuning.