參數(shù)資料
型號: CXD2529Q
廠商: Sony Corporation
元件分類: 數(shù)字信號處理
英文描述: CD Digital Signal Processor
中文描述: CD數(shù)字信號處理器
文件頁數(shù): 40/64頁
文件大小: 675K
代理商: CXD2529Q
– 40 –
CXD2529Q
Timing Chart 2-3
Measurement interval
(approximately 3.8μs)
Reference window
(132.2kHz)
Measurement pulse
(VCKI/2)
Measurement counter
VF0 to 7
Load
m
The relative velocity R of the disc can be expressed with the following equation.
R =
(R: Relative velocity, m: Measurement results)
VF0 to 7 is the result obtained by counting VCKI/2 pulses while the reference signal (132.2kHz) generated
from the crystal (384Fs) is high. This count is 31 when the disc is rotating at normal speed and 63 when it is
rotating at double speed (when DSPB is low).
m + 1
32
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