DS125DF410 Series
9.8 to 12.5-Gbps quad channel retimer with adaptive EQ, CDR and DFE
Manufacturer: Texas Instruments
Catalog
9.8 to 12.5-Gbps quad channel retimer with adaptive EQ, CDR and DFE
Key Features
• Each Channel Independently Locks to Data Rates from 9.8 to 12.5 Gbps and SubmultiplesFast Lock Operation Based on Protocol-Select ModeLow Latency (~300ps)Adaptive Equalization up to 34-dB Boost at 5 GHzAdjustable Transmit VOD: 600 to 1300 mVp-pAdjustable Transmit De-emphasis to –15 dBTypical Power Dissipation (EQ+DFE+CDR+DE): 180 mW/ChannelProgrammable Output Polarity InversionInput Signal Detection, CDR Lock Detection/IndicatorOn-Chip Eye Monitor (EOM), PRBS GeneratorSingle 2.5-V ± 5% Power SupplySMBus/EEPROM Configuration ModesOperating Temperature Range of –40 to 85°CWQFN 48-Pin 7-mm x 7-mm PackageEasy Pin Compatible Upgrade Between Repeater and RetimersDS100RT410 (EQ+CDR+DE): 10.3125 GbpsDS100DF410 (EQ+DFE+CDR+DE): 10.3125 GbpsDS110RT410 (EQ+CDR+DE): 8.5–11.3 GbpsDS110DF410 (EQ+DFE+CDR+DE): 8.5–11.3 GbpsDS125RT410 (EQ+CDR+DE): 9.8–12.5 GbpsDS125DF410 (EQ+DFE+CDR+DE): 9.8–12.5 GbpsDS100BR410 (EQ+DE): Up to 10.3125 GbpsEach Channel Independently Locks to Data Rates from 9.8 to 12.5 Gbps and SubmultiplesFast Lock Operation Based on Protocol-Select ModeLow Latency (~300ps)Adaptive Equalization up to 34-dB Boost at 5 GHzAdjustable Transmit VOD: 600 to 1300 mVp-pAdjustable Transmit De-emphasis to –15 dBTypical Power Dissipation (EQ+DFE+CDR+DE): 180 mW/ChannelProgrammable Output Polarity InversionInput Signal Detection, CDR Lock Detection/IndicatorOn-Chip Eye Monitor (EOM), PRBS GeneratorSingle 2.5-V ± 5% Power SupplySMBus/EEPROM Configuration ModesOperating Temperature Range of –40 to 85°CWQFN 48-Pin 7-mm x 7-mm PackageEasy Pin Compatible Upgrade Between Repeater and RetimersDS100RT410 (EQ+CDR+DE): 10.3125 GbpsDS100DF410 (EQ+DFE+CDR+DE): 10.3125 GbpsDS110RT410 (EQ+CDR+DE): 8.5–11.3 GbpsDS110DF410 (EQ+DFE+CDR+DE): 8.5–11.3 GbpsDS125RT410 (EQ+CDR+DE): 9.8–12.5 GbpsDS125DF410 (EQ+DFE+CDR+DE): 9.8–12.5 GbpsDS100BR410 (EQ+DE): Up to 10.3125 Gbps
Description
AI
The DS125DF410 is four channel retimer with integrated signal conditioning. The device includes a fully adaptive Continuous-Time Linear Equalizer (CTLE), self calibrating 5-tap Decision Feedback Equalizer (DFE), Clock and Data Recovery (CDR), and transmit De-Emphasis (DE) driver to enable data transmission over long, lossy and crosstalk-impaired highspeed serial links to achieve BER < 1×10-15.
Each channel can independently lock to data rate from 9.8 to 12.5 Gbps, and associated sub rates (div 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 via 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.
The DS125DF410 is four channel retimer with integrated signal conditioning. The device includes a fully adaptive Continuous-Time Linear Equalizer (CTLE), self calibrating 5-tap Decision Feedback Equalizer (DFE), Clock and Data Recovery (CDR), and transmit De-Emphasis (DE) driver to enable data transmission over long, lossy and crosstalk-impaired highspeed serial links to achieve BER < 1×10-15.
Each channel can independently lock to data rate from 9.8 to 12.5 Gbps, and associated sub rates (div 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 via 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.
