LC78626 Sanyo Semicon Device, LC78626 Datasheet - Page 15

• Manufacturer Part Number: LC78626
• Description: DSP for Compact Disk Players
• Manufacturer: Sanyo Semicon Device

(3) Switching the Phase Control Gain
(4) The CLV 3-state Output
By changing the frequency division value of the first-stage frequency divider of the phase comparator it is possible to
change the phase control gain.
The CLV 3-state output command makes it possible to control the CLV with a single pin. However, because this will
cause the spindle gain to fall by 6 dB, it will be necessary to increase the gain on the servo side.
Code
Code
$B1
$B2
$B3
$B0
$B4
$B5
2-state output
3-state output
CLV phase comparator 1/2 frequency division.
CLV phase comparator 1/4 frequency division.
CLV phase comparator 1/8 frequency division.
CLV phase comparator, no frequency division.
CLV 2-state output (traditional method)
CLV 3-state output
COMMAND
COMMAND
Acceleration
LC78626E
Deceleration
comparator
Phase
RES = low
RES = low
High impedance output
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