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4x4 1.5-Gbps LVDS crosspoint switch

SN65LVDS125A

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Product details

Parameters

Function Crosspoint Protocols LVDS Number of transmitters 4 Number of receivers 4 Supply voltage (V) 3.3 Signaling rate (Mbps) 1500 Input signal CML, LVDS, LVPECL Output signal LVDS Rating Catalog Operating temperature range (C) -40 to 85 open-in-new Find other LVDS, M-LVDS & PECL ICs

Package | Pins | Size

TSSOP (DBT) 38 43 mm² 4.4 x 9.7 open-in-new Find other LVDS, M-LVDS & PECL ICs

Features

  • Signaling Rates >1.5 Gbps per Channel
  • Supports Telecom/Datacom and HDTV
    Video Switching
  • Non-Blocking Architecture Allows Each
    Output to be Connected to Any Input
  • Compatible With ANSI TIA/EIA-644-A LVDS
    Standard
  • 25 mV of Input Voltage Threshold Hysteresis
  • Propagation Delay Times, 900 ps Typical
  • Inputs Electrically Compatible With LVPECL,
    CML and LVDS Signal Levels
  • Operates From a Single 3.3-V Supply
  • Integrated 110-Ω Line Termination Resistors
    Available With SN65LVDT125A
  • APPLICATIONS
    • Clock Buffering/Clock Muxing
    • Wireless Base Stations
    • High-Speed Network Routing
    • HDTV Video Switching

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Description

The SN65LVDS125A and SN65LVDT125A are 4x4 nonblocking crosspoint switches. Low-voltage differential signaling (LVDS) is used to achieve signaling rates of 1.5 Gbps per channel. Each output driver includes a 4:1 multiplexer to allow any input to be routed to any output. Internal signal paths are fully differential to achieve the high signaling speeds while maintaining low signal skews. The SN65LVDT125A incorporates 110-Ω termination resistors for those applications where board space is a premium.

Designed to support signaling rates up to 1.5 Gbps for OC-12 clocks (622 MHz). The 1.5-Gbps signaling rate allows use in HDTV systems, including SMPTE 292 video applications requiring signaling rates of 1.485 Gbps.

The SN65LVDS125A and SN65LVDT125A are characterized for operation from –40°C to 85°C.

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Technical documentation

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Type Title Date
* Data sheet SN65LVDS125A, SN65LVDT125A - LVDS 4x4 Crosspoint Switch datasheet (Rev. C) Jun. 27, 2011
User guide 4x4 Crosspoint Switch EVM User's Guide (Rev. A) Jan. 29, 2004

Design & development

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Hardware development

EVALUATION BOARD Download
document-generic User guide
49
Description

The SN65LVDS125A is a 4 x 4 non-blocking cross point switch. Low-Voltage differential signaling (LVDS) is used to achieve signaling rates of 1.5 Gbps per channel. Each output driver includes a 4:1 multiplexer to allow any input to be routed to any output. Internal signal paths are fully differential (...)

Features
  • Designed for Signaling Rates > 1.5 Gbps per channel
  • Propagation Delay Times, 900 ps Typical
  • Inputs electrically compatible with LVPECL, CML and LVDS signal levels
  • 25 mV input Threshold Hysteresis

Design tools & simulation

SIMULATION MODEL Download
SLLC198.ZIP (11 KB) - IBIS Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOL Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide

CAD/CAE symbols

Package Pins Download
TSSOP (DBT) 38 View options

Ordering & quality

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