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Description
Pin No.
Pin Name
I/O
1
PDO1
O
Internal VCO control phase comparator output pin. (Pull down)
2
PDO2
O
Internal VCO control phase comparator output pin.
OFF for rough servo, ON for phase servo. (Pull down)
3
VVSS
—
Internal VCO ground pin.
4
PCKIST
—
PDO output current adjustment resistor connection pin.
5
VVDD
—
Internal VCO power supply pin.
6
FR
—
VCO frequency range adjustment resistor connection pin. (Pull up)
7
HFL
I
Mirror detection signal input pin.
8
SLCIST
—
SLCO output current adjustment resistor connection pin.
9
SLCO
O
Control output.
10
EFMIN
I
EFM signal input pin.
11
JITTV
O
Jitter detection monitor pin. (Not used)
12
JITTC
O
Jitter detection monitor pin. (Pull down)
13
BH
I
BH signal input pin. (Connected to GND)
14
PH (RFENV)
I
PH signal or RFENV signal input pin.
15
FE
I
FE signal input pin.
16
TE
I
TE signal input pin.
17
VREF
I
VREF input pin.
18
ADAVDD
—
Servo A/D, D/A power supply pin.
19
ADAVSS
—
Servo A/D, D/A ground pin.
20
PHREF
O
PH reference output pin. (Not used)
21
BHREF
O
BH reference output pin. (Not used)
22
TBLO
O
Tracking balance output pin.
23
TDO
O
Tracking control output pin.
24
FDO
O
Focus control output pin.
25
SPDO
O
Spindle control output pin.
26
SLDO
O
Thread control output pin.
27
FG
I/O
Output driver VREF output pin. FG signal input pin. (Connected to GND)
28
LASER
O
Laser ON/OFF control pin.
General-purpose input/output pin 1.
General-purpose input/output pin 2.
General-purpose input/output pin 3.
General-purpose input/output pin 4.
General-purpose input/output pin 5. (Not used)
EFM data playback clock monitor pin. Average 4.3218MHz when the phase is locked. (Not used)
C2 flag output pin. (Not used)
36
VDD
—
Digital power supply pin.
37
DOUT
O
Digital out output pin. (EIAJ format). (Not used)
38
FSX
O
Output pin for the 7.35kHz synchronization signal divided from the crystal oscillator. (Not used)
IC, LC78641NE-D
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