CXD3048R Datasheet, PDF (167/205 Pages) Sony Corporation – CD Digital Signal Processor with Built-in Digital Servo + Shock-proof Memory Controller + Digital High & Bass Boost

CXD3048R
§5-17. Servo Status Changes Produced by LOCK Signal
When the LOCK signal becomes low, the TRK servo switches to the gain-up mode and the SLD servo turns off
in order to prevent SLD free-running.
Setting D6 (LKSW) of $38 to "1" deactivates this function.
In other words, neither the TRK servo nor the SLD servo change even when the LOCK signal becomes low.
This enables microcomputer control.
§5-18. Description of Commands and Data Sets
$34
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
0 KA6 KA5 KA4 KA3 KA2 KA1 KA0 KD7 KD6 KD5 KD4 KD3 KD2 KD1 KD0
When D15 = 0.
KA6 to KA0: Coefficient address
KD7 to KD0: Coefficient data
$348 (preset: $348 000)
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
1 0 0 0 PGFS1PGFS0PFOK1PFOK0 0 0 0 MRS MRT1 MRT0 0 0
These commands set the GFS signal hold time. The hold time is inversely proportional to the playback speed.
PGFS1 PGFS0
Processing
0
0
High when the frame sync is at the correct timing, low when not the correct timing.
0
1
High when the frame sync is at the correct timing, low when continuously not the
correct timing for 2ms or longer.
1
0
High when the frame sync is at the correct timing, low when continuously not the
correct timing for 4ms or longer.
1
1
High when the frame sync is at the correct timing, low when continuously not the
correct timing for 8ms or longer.
These commands set the FOK signal hold time. See $3B for the FOK slice level.
These are the values when MCK = 128Fs, and the hold time is inversely proportional to the MCK setting.
PFOK1 PFOK0
Processing
0
0
High when the RFDC value is higher than the FOK slice level, low when lower than
the FOK slice level.
0
1
High when the RFDC value is higher than the FOK slice level, low when continuously
lower than the FOK slice level for 4.35ms or more.
1
0
High when the RFDC value is higher than the FOK slice level, low when continuously
lower than the FOK slice level for 10.16ms or more.
1
1
High when the RFDC value is higher than the FOK slice level, low when continuously
lower than the FOK slice level for 21.77ms or more.
– 167 –