SNLS482B April   2014  – January 2017 DS125DF1610

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 Handling Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Additional Thermal Information
    6. 6.6 Electrical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Device Data Path Operation
      2. 7.3.2  AC-Coupled Receiver with Signal Detect
      3. 7.3.3  CTLE
      4. 7.3.4  Cross Point Switch
      5. 7.3.5  DFE with VGA
      6. 7.3.6  Clock and Data Recovery
      7. 7.3.7  Reference Clock
      8. 7.3.8  Differential Driver with FIR Filter
      9. 7.3.9  Setting the Output VOD
      10. 7.3.10 Output Driver Polarity Inversion
      11. 7.3.11 Driver Output Rise/Fall Time
      12. 7.3.12 Debug Features
        1. 7.3.12.1 Pattern Generator
        2. 7.3.12.2 Pattern Checker
        3. 7.3.12.3 Eye Opening Monitor
      13. 7.3.13 Interrupt Signals
      14. 7.3.14 Other Features
        1. 7.3.14.1 Lock Sequencer
        2. 7.3.14.2 RESET_IO Pin
    4. 7.4 Device Functional Modes
      1. 7.4.1 SMBus Master Mode
      2. 7.4.2 SMBus Slave Mode
        1. 7.4.2.1 SDA and SDC
        2. 7.4.2.2 SMBus Address Configuration
      3. 7.4.3 Device Configuration in SMBus Slave Mode
    5. 7.5 Programming
      1. 7.5.1 Bit Fields in the Register Set
      2. 7.5.2 Writing to and Reading from the Global/Shared/Channel Registers
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Typical Application Performance Plots
    3. 8.3 Initialization Setup
      1. 8.3.1 Data Rate Selection (Rate/Sub-Rate Table)
      2. 8.3.2 Data Rate Selection (Manual Programming)
  9. 9 Power Supply Recommendations
    1. 9.1 Power Supply Filtering
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Community Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • Pin-Compatible Family
    • DS150DF1610: 12.5 to 15 G
    • DS125DF1610: 9.8 to 12.5 G
    • DS110DF1610: 8.5 to 11.3 G
  • 4x4 Analog Cross Point Switch for Each Quad
  • Fully Adaptive CTLE
  • Self tuning DFE, with Optional Continuous Adaption
  • Configurable VGA
  • Adjustable Transmit VOD
  • Adjustable 3-tap Transmit FIR Filter
  • On-chip AC Coupling on Receive Inputs
  • Locks to Half/Quarter/Eighth Data Rates for Legacy Support
  • On-chip Eye Monitor(EOM), PRBS Checker, Pattern Generator
  • Supports JTAG Boundary Scan
  • Programmable Output Polarity Inversion
  • Input Signal Detection, CDR Lock Detection
  • Single 2.5 V ±5% Power Supply
  • SMBus Based Register Configuration
  • Optional EEPROM Configuration
  • 15 mm × 15 mm, 196-pin FCBGA Package
  • Operating Temp Range : –40°C to +85°C

2 Applications

  • SFF-8431
  • CPRI
  • 10G/40G Ethernet
  • Backplanes

3 Description

The DS125DF1610 is a sixteen-channel multi-rate retimer with integrated signal conditioning features. The device includes a fully adaptive Continuous Time Linear Equalizer (CTLE), Decision Feedback Equalizer (DFE), clock and data recovery (CDR), and a transmit FIR filter to enhance the reach and robustness over long, lossy, crosstalk impaired high speed serial links to achieve BER < 1×10-15.

Each channel of the DS125DF1610 independently locks to serial data at 9.8 to 12.5 Gbps and the divide by 2, 4 and 8 sub-multiples. A simple external oscillator (±100ppm) that is synchronous or asynchronous with the incoming data stream is used as a reference clock. Integrated 4x4 cross point switches allow for full non-blocking routing or broadcasting within each quad of the DS125DF1610.

Programmable transmit FIR filter offers control of the pre-cursor, main tap and post-cursor for transmit equalization. The fully adaptive receive equalization (CTLE and DFE) enables longer distance transmission in lossy copper interconnects and backplanes with multiple connectors.

A non-disruptive mission mode eye-monitor feature allows link monitoring internal to the receiver. The built-in PRBS generator and checker compliment the internal diagnostic features to complete standalone BERT measurements. Built-in JTAG enables manufacturing tests.

Device Information (1)

PART NUMBER PACKAGE BODY SIZE NOM
DS125DF1610 FCBGA (196) 15.00 mm x 15.00 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet

Simplified Schematic

DS125DF1610 SimplifiedSchematic.gif