13650DE
13 Gbps Differential Encoder in QFN package (-3.3 V Supply)

Applications

• High-speed (up to 13 Gbps) optical duobinary systems
• High-speed (up to 13 Gbps) optical differential phase shift keying systems (DPSK)
• High-speed (up to 13 GHz) digital logic
• Broadband test and measurement equipment

Features

• Supports data rates up to 13 Gbps
• Fast rise and fall times typically 15 ps
• Low power consumption: 380 mW
• 290 input phase margin (at 12.5 Gbps)
• Supports single-ended and differential operation
• Output signal swing 1200 mVpp differential
• Single -3.3 V power supply
• Available in plastic QFN package
• Evaluation board available
  

   

Description

The 13650DE differential encoder performs modulo two addition of the input data bit with the previous output bit. The part operates up to 13 Gbps and retimes the input data before performing the encoding operation, thereby providing a large input phase margin.

The encoder is nominally positive-edge triggered; however, by reversing the positive and negative clock connections, a negative-edge triggered application can be accommodated.

All differential data and differential clock inputs are on-chip DC coupled and terminated with 50 Ω resistors to ground (GND). For direct- coupled applications, the differential data outputs should be terminated off chip with 50 Ω resistors to GND. For applications requiring termination to DC levels other than GND, external AC coupling to a good RF ground is required. See the application note for various termination examples.

The 13650DE operates from a single -3.3 V power supply and dissipates only 380 mW. It is available in a 3 x 3 mm² quad flat no-lead (QFN) plastic package and is also available on an evaluation board with SMA connectors.

For more information about the 13650DE or other Inphi products, please click here and enter your email address for product downloads. New users must first complete our product request form.

Back to Networking & Communications Products