LVDS interfaces

Overview

LVDS-based IOs

The Bi-directional LVDS is in production from 90nm CMOS to 16/12nm FinFET and taped out in 7nm FinFET. This LVDS I/O is highly programmable and is an excellent IO for FPGA to ASIC conversions.

LVDS-based Interfaces

Based on this versatile LVDS circuit and our robust PLLs and CDR architecture we developed multiple uni-directional and bi-directional parallel source-synchronous interfaces for Chip-chip and Video data transmission. These interfaces can comply with custom chip-chip (or chip-FPGA) requirements or standards including FPDLink, FastLVDS, miniLVDS, FPD Link, Camera Link and OpenLDI.  A dynamic phase alignment and robust word alignment architecture enables data rates exceeding 190Mpixels/s (1.34Gb/s in each lane) for FPD-link and up to 3.3Gbps/lane in some cases. 

Key Features

  • Wide operating range
  • High data rates
  • Very flexible programmability
  • Excellent signal integrity
  • TIA/EIA644A LVDS and sub-LVDS compatibility
  • Receiver also compatible with LVPECL
  • Operates over 2Gbps and up to 3Gb/s in some processes
  • Trimmable on-die termination, can be enabled while Tx is operating for better signal integrity
  • Independent LVCMOS input and output functions

Block Diagram

LVDS interfaces Block Diagram

Deliverables

  • GDSII
  • CDL Netlist (MG Calibre Compatible)
  • Functional Verilog Model
  • Liberty timing models (.lib)
  • LEF
  • Application Note with integration and production test guidelines

Technical Specifications

Short description
LVDS interfaces
Vendor
Vendor Name
Foundry, Node
TSMC 40LP, TSMC 90G, UMC 28 HLP
Maturity
Silicon Proven
Availability
Available Now
GLOBALFOUNDRIES
Pre-Silicon: 40nm LP
SMIC
Pre-Silicon: 40nm LL
TSMC
In Production: 40nm LP , 90nm G
UMC
Silicon Proven: 28nm HLP
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Semiconductor IP