-25-
Pin No.
Pin Name
I/O
Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29 ~ 32
33
34
35 ~ 40
41 ~ 44
VDD2
________
EASSON
CDRW
_____
LDON
VGMUTE
GND
DIT
_____
TEST
MCLK
GND
DATAI
LRCKI
BCKI
BCKO
LRCKO
DATAO
YFLG
YCLK
YBLCK
____
RST
ESENS
VDD1
EMUTE
ELAT
EDATA
ECLK
A10
____
CAS
D2, D3, D0, D1
___
WE
____
RAS
A9 ~ A4
A0 ~ A3
–
O
O
O
O
–
–
–
I
–
I
I
I
O
O
O
I
I
I
I
O
–
I
I
I
I
–
O
I/O
O
O
O
O
IC DESCRIPTION - 2/6 (SM5904BF) - 1/1
input; "L": Without input
Power supply
RF peaking SW switching output. "L": EASS ON
CDRW SW switching output. "H": CD-RW mode
Pickup laser ON/OFF switching output. "L": Laser ON
Driver VG voltage ON/OFF switching output. "H": VG power ON
Connect to ground
Not used
16.9344MHz clock input
Connect to ground
Audio serial data input
Audio serial input (LR clock data)
Audio serial input (bit clock data)
Audio serial output (bit clock data)
Audio serial output (LR clock data)
Audio serial data output
IC process signal overflow flag RAM
Frame clock to crystal oscillator
Sub-code block clock signal
System reset
Microprocessor interface output
Power supply
Focus muting
Microprocessor interface latch clock input
Microprocessor interface serial data input
Microprocessor interface shift clock input
Not used
D-RAM/CAS control output (not used)
D-RAM data inputs/outputs 2, 3, 0,1 (not used)
D-RAM write inhibit control. "L": Write inhibited (not used)
D-RAM/RAS control output (not used)
D-RAM addresses 9-4 (not used)
