DVD PLAYER DIGITAL SERVO & DSP IC
→ Reverse the focus search when Auto =1 and UPDN = 1.
S5L1454A
AUTO=L, UPDN=L AUTO=L, UPDN=H
¢º¢º FOCUS PULL-IN
Summary
The FOD outputs delta waves to move the actuator up and down, and carries out focus pull-in near the FE (S-
curve) signal's zero cross.
input signal : FE, FOKB
output signal : FOD, FLKB
COMMAND
FONcmd (A2xxxx) Transmission
Related Register
Register
FSpk
FZCofs
FLoff
FLon
FSspd
Address
0055
10CF
004D
004E
0038
Function
Output control coefficient at F_srch pull_in
FZC offset level (manual mode)
FLKB (Focus Lock) off time
FLKB (Focus Lock) on time
Focus search speed register
Command
19