US 2007/0168589 A1 · Circuits and methods for high speed and low power data serialization

Abstract

Circuits and methods convert parallel data into a serial data stream. A serializer according to the present invention generally includes a high speed section and a low speed section. The high speed section generally comprises a tree-based serializer configured to serialize an N-bit parallel data stream, where N is a power of two. The low speed section generally includes a data bank configured to load one or more samples of an M-bit parallel input stream, and a multiplexer configured to produce the N-bit parallel data stream from the data bank. The present invention advantageously provides high speed and relatively low power serialization of M-bit parallel data streams where M is not a power of two. In particular, the present invention advantageously provides high speed and relatively low power serialization of 10-bit parallel data streams.

Claims20

Dependent claims

A serializer circuit for converting an M-bit parallel input stream into a corresponding serial data stream, said serial data stream having a frequency f and said circuit comprising:

a) a data bank of M*y data bits, where y is an integer of at least 1, said data bank configured to load y sequential samples of said M-bit parallel input stream;
b) a multiplexer configured to receive said data bits, and to produce an N-bit parallel data stream, where N=2r, r is an integer of at least 1, My =N*z, and z is an integer of at least 1;
c) a tree-based serializer configured to receive said N-bit parallel data stream and to produce a corresponding serial data stream, said tree-based serializer comprising r stages.

Dependencies are inferred from the claim text.

Circuits and methods for high speed and low power data serialization

Life of this patent

Circuits and methods for high speed and low power data serialization

Life of this patent

Abstract

Claims20