DS250DF230ZLST
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Texas Instruments DS250DF230ZLST

Manufacturer No:
DS250DF230ZLST
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC INTFACE SPECIALIZED 36NFBGA
Delivery:
Payment:
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Product Introduction

Overview

The DS250DF230ZLST from Texas Instruments is a 25-Gbps multi-rate 2-channel retimer designed to enhance signal integrity in high-speed data transmission systems. This device features integrated signal conditioning, including continuous-time linear equalizers (CTLE) and decision feedback equalizers (DFE), which compensate for signal degradation caused by transmission channels. Each channel operates independently, with its own voltage-controlled oscillator (VCO) and phase-locked loop (PLL) to produce a clean clock and reduce jitter. The retimer supports a wide range of data rates and can be configured via SMBus or an external EEPROM, making it versatile for various applications such as backplanes, front ports, and active cable assemblies.

Key Specifications

ParameterDescription
Data RateUp to 25.78125 Gbps, with support for divide-by-2 and divide-by-4 sub-rates
ChannelsDual-channel, operating independently
EqualizationCTLE and 5-tap DFE for signal conditioning
Output DriverAdjustable differential output voltage with 3-tap FIR filter for pre- and post-cursor equalization
Power SupplySingle 2.5-V supply
ConfigurationConfigurable via SMBus or external EEPROM
Diagnostic FeaturesPRBS generator and checker, non-destructive eye monitor (EOM)
Package36-NFBGA (5x5)

Key Features

  • Dual-channel multi-rate retimer with integrated signal conditioning
  • Advanced equalization features including CTLE and 5-tap DFE to compensate for channel loss and crosstalk
  • Independent VCO and PLL for each channel to reduce jitter and produce a clean clock
  • 2x2 cross-point switch for multiplexing, de-multiplexing, and lane crossing applications
  • Configurable via SMBus or external EEPROM, with support for up to 16 devices sharing an EEPROM
  • Diagnostic features including PRBS generator and checker, and a non-destructive eye monitor (EOM)
  • Adjustable differential output voltage and output equalization using a 3-tap FIR filter

Applications

The DS250DF230ZLST is suitable for various high-speed data transmission applications, including:

  • Front-port jitter cleaning for 100GbE and 25GbE ports, extending the reach of differential channels and cleaning jitter and other signal impairments
  • Backplane applications to equalize insertion loss and reduce jitter
  • Active cable assemblies to enhance signal integrity over long distances
  • Other high-speed interconnects requiring robust signal conditioning and jitter reduction

Q & A

  1. What is the maximum data rate supported by the DS250DF230ZLST?
    The DS250DF230ZLST supports data rates up to 25.78125 Gbps.
  2. How many channels does the DS250DF230ZLST have?
    The device has two independent channels.
  3. What types of equalization does the DS250DF230ZLST support?
    The device supports CTLE and a 5-tap DFE for signal conditioning.
  4. How can the DS250DF230ZLST be configured?
    The device can be configured via SMBus or an external EEPROM.
  5. What diagnostic features are available on the DS250DF230ZLST?
    The device includes a PRBS generator and checker, and a non-destructive eye monitor (EOM).
  6. What is the purpose of the 2x2 cross-point switch in the DS250DF230ZLST?
    The 2x2 cross-point switch allows for multiplexing, de-multiplexing, and lane crossing applications.
  7. What is the power supply requirement for the DS250DF230ZLST?
    The device requires a single 2.5-V supply.
  8. Can multiple DS250DF230ZLST devices share an EEPROM?
    Yes, up to 16 devices can share a single EEPROM.
  9. What package type is the DS250DF230ZLST available in?
    The device is available in a 36-NFBGA (5x5) package.
  10. What are some typical applications for the DS250DF230ZLST?
    Typical applications include front-port jitter cleaning, backplane applications, and active cable assemblies.

Product Attributes

Applications:Retimer
Interface:- 
Voltage - Supply:- 
Package / Case:36-LFBGA
Supplier Device Package:36-NFBGA (5x5)
Mounting Type:Surface Mount
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Similar Products

Part Number DS250DF230ZLST DS250DF230ZLSR
Manufacturer Texas Instruments Texas Instruments
Product Status Active Active
Applications Retimer Retimer
Interface - -
Voltage - Supply - -
Package / Case 36-LFBGA 36-LFBGA
Supplier Device Package 36-NFBGA (5x5) 36-NFBGA (5x5)
Mounting Type Surface Mount Surface Mount

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