Audio clocking apparatus, system, and method

Abstract

Aspects of the present disclosure involve an audio clocking device including high-frequency crystal oscillators capable of consistent low jitter and phase noise. The audio clocking device ensures that any low-jitter and low-noise signals are maintained as the signal propagates through circuitry of the audio clocking device.

What is claimed is: 
     
         1 . A digital audio clocking apparatus comprising:
 an oscillation circuit for propagating a low jitter output through other circuitry of the digital audio clocking device, wherein the oscillation circuit comprises at least one high-frequency crystal oscillator to generate the low jitter output; and   wherein the other circuitry comprises:
 a component to isolate electrical power provided to the oscillation circuit from at least one component included in the other circuitry to protect the low jitter output from at least one parasitic element; 
 a first buffering circuit to first buffer a portion of the low jitter output to maintain low jitter of the output and maintain signal isolation; 
 a transformer to:
 receive the portion of the low jitter output from the buffering circuit to maintain the signal isolation between the oscillation circuit and the component; 
 
 a plurality of flip flops for dividing the at least the portion of the output to identify at least one frequency for operation; and 
 a second buffering circuit to second buffer the at least one frequency to maintain harmonic content of the at least one frequency of the desired frequency. 
   
     
     
         2 . The digital audio clocking apparatus of  claim 1 , wherein the second buffering circuit includes a plurality of buffers when buffering the at least one frequency to ensure the second buffering circuit is not overloaded when driving a device connected to the output of the second buffering circuit. 
     
     
         3 . The digital audio clocking apparatus of  claim 1 , wherein the at least one parasitic element is at least one of stray capacitance, inductance, and resistance. 
     
     
         4 . The digital audio clocking apparatus of  claim 1 , wherein the buffering circuit is a high bandwidth and high slew rate buffer circuit. 
     
     
         5 . The digital audio clocking apparatus of  claim 1 , circuit maintains low jitter of the low jitter output over a period of time. 
     
     
         6 . The digital audio clocking apparatus of  claim 1 , wherein the transformer is further configured to generate additional harmonics in the portion of the output and provide galvanic isolation. 
     
     
         7 . A digital audio clocking system comprising:
 a digital audio clocking device comprising:
 an oscillation circuit for propagating a low jitter output through other circuitry of the digital audio clocking device, wherein the oscillation circuit comprises at least one high-frequency crystal oscillator to generate the low jitter output; and 
 wherein the other circuitry comprises:
 a component to isolate electrical power provided to the oscillation circuit from at least one component included in the other circuitry to protect the low jitter output from at least one parasitic element; 
 a first buffering circuit to first buffer a portion of the low jitter output to maintain low jitter of the output and maintain signal isolation; 
 a transformer to:
 receive the portion of the low jitter output from the buffering circuit to maintain the signal isolation between the oscillation circuit and the component; 
 a plurality of flip flops for dividing the at least the portion of the output to identify at least one frequency for operation; and 
 a second buffering circuit to second buffer the at least one frequency to maintain harmonic content of the at least one frequency of the desired frequency. 
 
 
   
     
     
         8 . The digital audio clocking system of  claim 7 , wherein the second buffering circuit includes a plurality of buffers when buffering the at least one frequency to ensure the second buffering circuit is not overloaded when driving a device connected to the output of the second buffering circuit. 
     
     
         9 . The digital audio clocking system of  claim 7 , wherein the at least one parasitic element is at least one of stray capacitance, inductance, and resistance. 
     
     
         10 . The digital audio clocking system of  claim 7 , wherein the buffering circuit is a high bandwidth and high slew rate buffer circuit. 
     
     
         11 . The digital audio clocking system of  claim 7 , wherein the oscillation circuit maintains low jitter of the low jitter output over a period of time. 
     
     
         12 . The digital audio clocking system of  claim 7 , wherein the transformer is further configured to generate additional harmonics in the portion of the output and provide galvanic isolation.