LC78616PE Datasheet, PDF (16/26 Pages) ON Semiconductor – Compact Disc Player IC

LC78616PE
CD Subcode Data Output function
It is possible to output the subcode data (PW data) according to the terminal setting when CD playback mode.
The PW data are output at the rising edge of SBCK signal when the SBCK clock signal is input.
<Note>
The CD-TEXT function and the CD Subcode data output function are exclusive functions. It is impossible to use
those two functions simultaneously.
 Used pins
SBSY (Subcode Block Synchronous signal) : CONT00
SFSY (Subcode Frame Synchronous signal) : CONT01
PW (Subcode PW data)
: CONT02
SBCK (Subcode data read clock)
: CONT03
 Subcode Data Output timing
SFSY
(Output)
tSBE
tSBFC
tSBCKH
SBCK
(Input)
PW
(Output)
tSBCKL
P
Q
R
S
T
U
V
W
"0"
P
tSBRDL
 Subcode Block Synchronous Signal Output timing
SBSY
(Output)
tSBBH
tSBBC
Parameter
Symbol
Pin Names
Min
Typ
Max
unit
Subcode Read Cycle time
tSBFC
SFSY
136
*1
us
Subcode Read Enable time
tSBE
SFSY, SBCK
400
ns
SBCK clock "H" level width
tSBCKH
SBCK
250
ns
SBCK clock "L" level width
tSBCKL
SBCK
250
ns
PW data output Delay time
tSBRDL
SBCK, PW
0
100
ns
SBSY output Cycle time
tSBBC
SBSY
13.3
*2
ms
SBSY "H" level width
tSBBH
SBSY
272
*2
us
<Notes>
*1. When playback the CD at the normal speed (CLV playback).
This value changes depending on the playback speed.
*2. When playback the CD at the normal speed (CLV playback).
The SBSY signal becomes high level during the first two subcoding symbols (S0 and S1) are asserted.
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