GENERAL DESCRIPTION

The VSC7166 is used to interface between OC-192 Framers and Parallel Optical Modules. In the Serializer, 16-bit OC-192 data from the Framer is mapped and encoded onto twelve 1.244 Gb/s, 8b/10b outputs, with 1 of the twelve outputs being used for XOR protection and another of the twelve for EDC. In the Deserializer, the twelve 1.244 Gb/s inputs are decoded and remapped to SFI-4 OC-192 data for the Framer. The redundant channel permits data to be reconstructed in the deserializer even if a channel fails. The 16-bit 622 MHz signals and the 12 1.244 Gb/s interfaces both utilize LVDS signaling. These devices are intended for high-speed Router-to-Router and DWDM/Sonet Terminal-to-Router connections.

FEATURES :

► 10 Gigabits Per Second of Aggregate Data Throughput

► SONET Frame Transport Mechanisms

► 8B/10B Encoder/Decoder

► LVDS Input and Output Signaling

► CRC-based Bit Error Correction Algorithm

► Protection Switching Mechanism Recovers any Lost Channel

► User Specified High-speed and Low-speed Input Terminations

► 1.8V and 2.5V Power Supplies

► 256 Pin Thermally Enhanced BGA

► Inter-channel Deskewing Capability

► Robust Loss of Synchronization (LOS) and Loss of Frame (LOF) State Machines

► Conforms to OIF-VSR4-01.0

► JTAG Boundary Scan

► Two Recovered Clock-based Outputs

► Serial Register Interface

BENEFITS :

► Allows the Use of Inexpensive, Currently Available Parallel Optical Modules

► Error Detection/Correction for a Robust Link

► Error Diagnostics to Improve Links

► Patchcord Reversal Protection for Mistake-proof Installation

► 8B/10B Encoding for DC Balance, Effective Clock Recovery

► Selectable Input Terminations for Maximum Data Transfer Integrity