Responsive and accurate servo dsp (all models) – Sony DVP-NS999ES User Manual

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ES Series DVD-Video/CD/SA-CD Players; Version 3.0

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Sony's Precision Drive 2 mechanism, including the optical block (upper
left) and disc spindle (lower right).

Responsive and accurate servo DSP (all models)


The Precision Drive 2 system of the DVP-NS999ES operates under the

control of a fast servo DSP, the Sony CXD9703. It operates at 50 million
instructions per second (50 MIPS), an astonishing speed for an ancillary
processor. You get instantaneous response to changes in operating conditions,
faster and smoother high-speed search and shortened time between disc
insertion and playback.


Sony's servo DSP has an astonishingly fast operation speed of 50
million instructions per second (MIPS).

Delta Sigma 1-bit D/A in the Servo DSP (all models)


Just as Delta Sigma modulation stands behind the high sampling rates of

the Super Audio CD format, Sony has applied Delta Sigma modulation to the
servo DSP. The Sony CDX9703 incorporates a 1-bit Delta Sigma Modulation
A/D converter to translate the analog input voltages into binary code. In order to
drive the focus and tracking actuators, the output of the servo DSP is converted

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