3 - 2
Pin
Name
I/O Description
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
70
*SPPOL
O Spindle motor drive signal output (Polarity output)
71
PMCK
O 88.2-KHz clock signal output
72
*NCLDCK
O Frame sync signal output f=7.35kHz (Normal-speed playback)
73
*SUBC
O Subcode serial output
74
*SBCK
I Subcode serial output clock input
75
NTEST
I Test input pin Normal: H
76
X2
O Crystal oscillator output pin f=16.9344 MHz
77
X1
I Crystal oscillator input pin f=16.9344 MHz
78
DV
SS1
I Ground for digital circuits
79
DV
DD1
I Power supply for digital circuits
80
*EXT2
I Expansion I/O part 2
AN8789FB– SILICON MONOLITHIC BIPOLAR IC
Pin
Name
Description
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
1 V
SEN
Empty detection input
2
PV
CC1
Power supply
3
RESET
Reset output
4
DED
Dead time input
5
OUT CD/DC converter output
6
FB
Error amplifier output
7
IN
Error amplifier input
8
SPRO
Short-circuit protection input
9
CT
Triangular wave oscillation
10
AREF
1/2 AV
DD
output
11
CRIP
Ripple rejection capacitor
12
SV
CC
Power supply
13
N.C.
Not connected
14
AV
DD
Ripple filter output
15
DRV
DD
Power supply
16
V
REF
1/2 VD
CC
input
17
IN
FO
Driver input
18
IN
TR
Driver input
19
LDON
Driver ON/OFF control
20
IN
SP
Driver input
21
PC
Driver IN/OFF control
22
IN
TV
Driver input
23
TRVSTOP
Driver ON/OFF control
24
TR-
Driver output
25
TR+
Driver output
26
FO-
Driver output
27
FO+
Driver output
28
PGND
Ground
29
SP+
Driver output
30
SP-
Driver output
31
TV+
Driver output
32
TV-
Driver output
33
I
CONT
Charge current setting
34
MRST
Muting reset output
35
EMP
Empty detection output
36
V
C
Driver supply voltage
37
TB
PWM circuit output
38
CLK
External sync input
39
START
Start oscillation starting input
40
POWER
Power ON/OFF
41
PV
CC2
Power supply
42
I
OUT
Charging and battery detetion
43
SGND
Ground
44
PWMG
PWM loop gain control
