DS125DF410SQ

The Texas Instruments DS125DF410SQ is an active quad channel retimer featuring adaptive equalization (EQ), clock and data recovery (CDR), and decision feedback equalization (DFE). It supports independent channel locking to data rates from 9.8 to 12.5 Gbps and submultiples, with fast lock operation based on protocol-select mode.

This retimer offers low latency of approximately 300 ps. It includes adaptive equalization with up to 34-dB boost at 5 GHz, adjustable transmit VOD from 600 to 1300 mVp-p, and adjustable transmit de-emphasis up to -15 dB. Typical power dissipation is 180 mW per channel.

The DS125DF410SQ is compatible with AC-coupling and CML inputs and supports protocols such as 10G-SR/LR, 40G-SR4/LR4, CPRI, General purpose, Infiniband, and Interlaken. It features programmable output polarity inversion, input signal detection, CDR lock detection, and an on-chip eye monitor (EOM) with a PRBS generator.

Packaged in a 48-pin WQFN (7 mm x 7 mm) with surface mount type, this device operates from a single 2.5-V ± 5% power supply. Configuration is managed via SMBus/EEPROM. The operating temperature range is -40°C to 85°C.