DS125BR401A

現行

具有等化功能的 12 Gbps 4 通道轉接驅動器

產品詳細資料

Type Redriver Protocols General purpose, PCIe1, PCIe2, PCIe3, SAS1, SAS2, SAS3, SATA1, SATA2, SATA3 Applications PCIe, SAS, SATA Number of channels 8 Speed (max) (Gbpp) 12.5 Supply voltage (V) 2.5, 3.3 Rating Catalog Operating temperature range (°C) -40 to 85
Type Redriver Protocols General purpose, PCIe1, PCIe2, PCIe3, SAS1, SAS2, SAS3, SATA1, SATA2, SATA3 Applications PCIe, SAS, SATA Number of channels 8 Speed (max) (Gbpp) 12.5 Supply voltage (V) 2.5, 3.3 Rating Catalog Operating temperature range (°C) -40 to 85
WQFN (NJY) 54 55 mm² 10 x 5.5
  • Low 65-mW/Channel (Typ) Power Consumption, With Option
    to Power Down Unused Channels
  • Linear Equalization allows for Link Training in PCIe and SAS
  • Supports Out-of-Band (OOB) Signaling
  • Advanced Signal Conditioning B-Side I/O
    • Receive CTLE up to 24 dB at 6 GHz
    • Transmit (Tx) DE > 10 dB
    • Tx Output Voltage: 700 mV to 1400 mV
  • Advanced Signal Conditioning A-Side I/O
    • Receive CTLE up to 10 dB at 6 GHz
    • Linear output drive
    • Output voltage range over 1200mV
  • Programmable via Terminal Selection, EEPROM, or
    SMBus Interface
  • Single Supply Voltage: 2.5 V or 3.3 V
  • −40°C to 85°C Operating Temperature Range
  • 4 kV HBM ESD Rating
  • Flow-Thru Layout in 10mmx5.5mm 54-Terminal Leadless
    WQFN Package
  • Low 65-mW/Channel (Typ) Power Consumption, With Option
    to Power Down Unused Channels
  • Linear Equalization allows for Link Training in PCIe and SAS
  • Supports Out-of-Band (OOB) Signaling
  • Advanced Signal Conditioning B-Side I/O
    • Receive CTLE up to 24 dB at 6 GHz
    • Transmit (Tx) DE > 10 dB
    • Tx Output Voltage: 700 mV to 1400 mV
  • Advanced Signal Conditioning A-Side I/O
    • Receive CTLE up to 10 dB at 6 GHz
    • Linear output drive
    • Output voltage range over 1200mV
  • Programmable via Terminal Selection, EEPROM, or
    SMBus Interface
  • Single Supply Voltage: 2.5 V or 3.3 V
  • −40°C to 85°C Operating Temperature Range
  • 4 kV HBM ESD Rating
  • Flow-Thru Layout in 10mmx5.5mm 54-Terminal Leadless
    WQFN Package

The DS125BR401A is an extremely low-power high-performance repeater/redriver designed to support four lanes carrying high speed interface up to 12 Gbps. The B-Side receiver’s continuous time linear equalizers (CTLE) provide high frequency boost of up to +24 dB at 6 GHz (12 Gbps) and are capable of opening an input eye that is completely closed due to inter symbol interference (ISI) induced by interconnect medium such as backplane traces or twinaxial copper cables. The programmable equalization allows maximum flexibility in the physical placement within the interconnect channel. The A-Side channel has a 10 dB linear equalizer and linear output driver.

The A-Side channel has a settable 3-10 dB linear equalizer coupled to a linear output driver. When operating in SAS-3 and PCIe Gen-3 applications the DS125BR401A preserves transmit signal characteristics allowing the host controller and the end point to negotiate transmit equalizer coefficients. This transparency to the link training protocol aides system level interoperability and minimum latency.

The programmable settings can be applied easily via Terminals, software (SMBus or I2C), or loaded via an external EEPROM. In EEPROM mode, the configuration information is automatically loaded on power up, which eliminates the need for an external microprocessor or software driver.

The DS125BR401A is an extremely low-power high-performance repeater/redriver designed to support four lanes carrying high speed interface up to 12 Gbps. The B-Side receiver’s continuous time linear equalizers (CTLE) provide high frequency boost of up to +24 dB at 6 GHz (12 Gbps) and are capable of opening an input eye that is completely closed due to inter symbol interference (ISI) induced by interconnect medium such as backplane traces or twinaxial copper cables. The programmable equalization allows maximum flexibility in the physical placement within the interconnect channel. The A-Side channel has a 10 dB linear equalizer and linear output driver.

The A-Side channel has a settable 3-10 dB linear equalizer coupled to a linear output driver. When operating in SAS-3 and PCIe Gen-3 applications the DS125BR401A preserves transmit signal characteristics allowing the host controller and the end point to negotiate transmit equalizer coefficients. This transparency to the link training protocol aides system level interoperability and minimum latency.

The programmable settings can be applied easily via Terminals, software (SMBus or I2C), or loaded via an external EEPROM. In EEPROM mode, the configuration information is automatically loaded on power up, which eliminates the need for an external microprocessor or software driver.

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重要文件 類型 標題 格式選項 日期
* Data sheet DS125BR401A Low-Power 12 Gbps 4-Lane Linear Repeater With Equalization datasheet (Rev. A) PDF | HTML 2014年 3月 31日
Application note Linear Repeaters Used in SAS/SATA Applications PDF | HTML 2015年 9月 21日
Application note Channel Tuning Made Easy Using Linear Repeaters for 10G and 12G Applications 2015年 1月 20日
Application note Understanding EEPROM Programming for High Speed Repeaters and Mux Buffers 2014年 10月 9日

設計與開發

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開發板

DS125BR401AEVM — DS125BR401AEVM:具有等化功能的 12-Gbps 4 通道中繼器評估模組

The DS125BR401AEVM – SMA evaluation kit provides a complete high band-width platform to evaluate the signal integrity and signal conditioning features of the Texas Instruments DS125BR401A Redriver/Repeater with Equalization and De-emphasis. SMA edge launch connectors are used as the input and the (...)

使用指南: PDF
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SIGCONARCHITECT SigCon Architect v2.0.0.8

Our SigCon Architect utility tool provides a simple-to-use and robust system for interaction with several different high-speed signal conditioning TI devices. This software provides an interactive GUI for supported devices to access device features through SMBus and SPI communications.

SigCon (...)

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SIGCONARCHITECT-WRTE SigCon Architect With RTE v2.0.0.8

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模擬型號

DS125BR401A IBIS-AMI Model

SNLM277.ZIP (17614 KB) - IBIS-AMI Model
模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一,涵蓋我們的類比和電源產品組合,以及特定類比行為模型,且使用無需支付費用。

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使用指南: PDF
參考設計

TIDA-00425 — 12 Gbps SAS-3 連結延伸器參考設計

This reference design extends the link distance and loss budget of high speed SAS-3 data paths, using configurable equalization, de-emphasis, and output voltage. It supports SAS and SATA interfaces from 1.5 Gbps to 12 Gbps using a miniSAS-HD interface.
Design guide: PDF
電路圖: PDF
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WQFN (NJY) 54 Ultra Librarian

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