Abstract: A serializer-deserializer (SERDES) includes a clock-data recovery block, a control block, and a low-pass filter. The control block contains a state machine that includes a fast convergence mode utilizing an unstable operating point and a slow tracking mode utilizing a stable operating point. The control block is configured to start in the fast convergence mode to allow quickly locking the recovered clock to the incoming data stream by replicating movement commands resulting in multiple phase adjustments for each transition. To facilitate proper operation of the SERDES, the fast convergence mode is exited after N-bits and a slow tracking mode is entered to provide stable operation. The control block accepts filtered transition-data and data-transition phase state signals and converges to a phase aligned state in less than 2N-bits where N represents the number of phases in one data bit.

Abstract: A tool assembly for connection to a charging inlet tube of a fluid receiving system, and for evacuating and dispensing a charging fluid to the fluid receiving system. The tool assembly includes a tool housing having an upper and a lower housing half and including a plurality of internal valve components. The internal valve components are assembled in sliding engagement with each other within the tool housing and are held in assembled engagement by assembly of the upper and lower housing halves together whereby the tool assembly may be quickly disassembled and assembled for replacement of components. Fluid flow through the tool assembly is directed by an inner body positioned between the upper and lower housing halves, and vacuum and fluid charging is controlled by a vacuum control poppet and fluid control poppet, respectively, which poppets are longitudinally moveable relative to the inner body and to each other.

Abstract: A tool assembly for connection to a charging inlet tube of a fluid receiving system, and for evacuating and dispensing a charging fluid to the fluid receiving system. The tool assembly includes a tool housing having an upper and a lower housing half and including a plurality of internal valve components. The internal valve components are assembled in sliding engagement with each other within the tool housing and are held in assembled engagement by assembly of the upper and lower housing halves together whereby the tool assembly may be quickly disassembled and assembled for replacement of components. Fluid flow through the tool assembly is directed by an inner body positioned between the upper and lower housing halves, and vacuum and fluid charging is controlled by a vacuum control poppet and fluid control poppet, respectively, which poppets are longitudinally moveable relative to the inner body and to each other.