— 74 —
BD BOARD IC102 LC78622E
Pin No.
Pin Name
I/O
Function
PLL : Phase Locked Loop
EFM : Eight to Fourteen Modulation
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
DEFI
TAI
PDO
VVSS
ISET
VVDD
FR
VSS
EFMO
EFMIN
TEST2
CLV+
CLV–
V/P
HFL
TES
TOFF
TGL
JP+
JP–
PCK
FSEQ
VDD
CONT1
CONT2
CONT3
I
I
O
—
I
—
I
—
O
I
I
O
O
O
I
I
O
O
O
O
O
O
—
I/O
I/O
I/O
Defect detection signal (DEF) input
(Be sure to connect to 0 when not in use)
PLL test input to incorporates a pull-down resistor
(Be sure to connect to 0V)
PLL phase comparison output for external VCO control
PLL ground for the built-in VCO
(Be sure to connect to 0 when not in use)
Connected to a current adjusting resistor for the PDO output
Built-in VCO power supply
Adjusts the VCO frequency range
Digital Ground to be sure to connect to 0
Slice level control to EFM signal output
Slice level control to EFM signal input
Test input to incorporates a pull-down resistor
(Be sure to connect to 0V)
Disc motor control output
(3-value output available depending on the command)
Rough servo/phase control automatic switching monitor output
“H”:rough servo, ‘’L”:phase servo
Tracking detection signal input
(Schmidt input)
Tracking error signal input
(Schmidt input)
Tracking OFF output
Tracking gain switching output
(Raises gain when “L”)
Track jump control output
(3-value output available depending on the command)
EFM data playback clock monitor
(4.3218 MHz when phase is locked)
Sync signal detection output
(“H” when a sync signal detected from the EFM signal and that
generated internally coincide)
Digital power supply
General purpose output 1.
Performs control using a serial data command from the
microprocessor
(When not in use, connect to 0V by setting to an input or set to an open state
by setting to an output)
General purpose output 2.
Performs control using a serial data command from the
microprocessor
(When not in use, connect to 0V by setting to an input or set to an open state
by setting to an output)
General purpose output 3.
Performs control using a serial data command from the
microprocessor
(When not in use, connect to 0V by setting to an input or set to an open state
by setting to an output)
General purpose output 4.
Performs control using a serial data command from the
microprocessor
(When not in use, connect to 0V by setting to an input or set to an open state
by setting to an output)
General purpose output 5.
Performs control using a serial data command from the
microprocessor
(When not in use, connect to 0V by setting to an input or set to an open state
by setting to an output)
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