3 - 2
SYMBOL
PIN
DESCRIPTION
LPO
WER
1
Laser po
wer supply
EXTFIL
TER
2
10 nF capacitor f
or Laser star
t-up control
MONIT
OR
3
Laser monitor diode
SENSE
4
OPU ground ref
erence point f
or MONIT
OR measurement
V
SSA1
5
Analogue g
round 1
IREF
6
Ref
erence current pin (24K
Ω
resister to analogue ground)
V
DD
A1
7
Analogue supply v
oltage 1
VREF_OUT
8
Ser
v
o
ref
erence v
oltage
D1
9
Diode v
oltage/current input (central diode signal input)
D2
10
Diode v
oltage/current input (central diode signal input)
D3
11
Diode v
oltage/current input (central diode signal input)
D4
12
Diode v
oltage/current input (central diode signal input)
R1
13
Diode v
oltage/current input (satellite diode signal input)
R2
14
Diode v
oltage/current input (satellite diode signal input)
CSLICE
15
10nF capacitor f
or adaptiv
e HF dataslicer
V
DD
A2
16
Analogue supply v
oltage 2
V
SSA2
17
Analogue g
round 2
OSCOUT
18
Cr
ystal/resonator output
OSCIN
19
Cr
ystal/resonator input
V
SSA3
20
Analogue g
round 3
DA
C_GND
21
A
udio D
A
C ground
DA
C_RP
22
A
udio D
A
C r
ight channel diff
erential output (positiv
e)
DA
C_RN
23
A
udio D
A
C r
ight channel diff
erential output (negativ
e)
DA
C_VREF
24
A
udio D
A
C decoupling point (10uF//100nF to g
round)
DA
C_LN
25
A
udio D
A
C left channel diff
erential output (negativ
e)
DA
C_LP
26
A
udio D
A
C left channel diff
erential output (positiv
e)
DA
C_VPOS
27
A
udio D
A
C positiv
e supply
BUF_VPOS
28
A
udio b
uff
er positiv
e supply
BUF_IN_R
29
A
udio b
uff
er r
ight input
BUF_OUT_R
30
A
udio b
uff
er r
ight output
BUF_OUT_L
31
A
udio b
uff
er left output
BUF_IN_L
32
A
udio b
uff
er left input
BUF_GND
33
A
udio b
uff
er ground
LKILL
34
Kill output f
or left channel (configur
ab
le as open dr
ain)
RKILL
35
Kill output f
or r
ight channel (configur
ab
le as open drain)
CDT_RD
Y
3
6
CD-T
e
xt to micro ready flag
CDT_D
A
T
A
37
CD-T
e
xt data to micro
CDT_CLK
38
CD-T
e
xt micro cloc
k
CFLA
G
3
9
Correction flag output (open dr
ain)
V
SSD1
40
Digital g
round 1
V
DDD1
41
Digital supply v
oltage 1
SDI
42
Ser
ial data input (loopbac
k)
WCLI
43
W
ord cloc
k input (loopbac
k)
SCLI
44
Ser
ial bit cloc
k (loopbac
k)
EF
45
C2 error flag
D
ATA
46
Ser
ial data output
WCLK
47
W
ord cloc
k output
SCLK
48
Ser
ial cloc
k output
CLK16
49
16MHz cloc
k
CLK4_12
50
Configur
ab
le 4MHz or 12MHz cloc
k
RESET
51
P
o
w
er on reset (activ
e lo
w)
SD
A
5
2
Micro interf
ace data I/O line (open drain output)
SCL
53
Micro interf
ace cloc
k line
RAB
54
Micro interf
ace R/W & load control line (4-wire)
SILD
55
Micro interf
ace R/W & load control line (4-wire)
ST
A
TUS
56
Ser
v
o
interr
upt request line/decoder status register/DC offset v
alue readbac
k
RCK
57
Subcode cloc
k
SUB
58
P to W subcode
SFSY
59
Subcode frame sync
SBSY
60
Subcode b
loc
k sync
V
SSD2
61
Digital g
round 2
DOBM
62
Bi-phase mar
k output (e
xter
nally b
uff
ered)
V
DDD2
63
Digital supply v
oltage 2
RA
64
Radial actuator
FO
65
F
ocus actuator
SL
66
Sledge actuator
MO
T
O
1
6
7
Motor output 1
MO
T
O
2
6
8
Motor output 2
V
SSD3
69
Digital g
round 3
V
DDD3
70
Digital supply v
oltage 3
V1
71
V
ersatile pin 1
V2
72
V
ersatile pin 2
V3
73
V
ersatile pin 3
V4
74
V
ersatile pin 4
V5
75
V
ersatile pin 5
TEST1
76
T
est pin
TEST2
77
T
est pin
TEST3
78
T
est pin
TEST4
79
T
est pin
LASER
80
Laser dr
iv
e
SYMBOL
PIN
DESCRIPTION
PIN DESCRIPTIONS OF IC SAA7824HL
