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