Pin No.Pin NameI/OFunctionY IC102 DIGITAL SIGNAL PROCESSOR (LC78622E)
38SLOFISled servo off control inputPin No.Pin NameI/OFunction
39CV�ICLV error signal is input from the digital signal processor1DEFIIDefect detection signal (DEF) input (Be sure to connect to 0 when not in use)
40CV+ICLV error signal is input from the digital signal processor2TAIIPLL Test input Incorporates a pull-down resistor Be sure to connect to 0V
41RFSMORF output3PDOOPLL Phase comparison output for external VCO control
Works together with the RFSM pin to set the RF gain and the 3T compensa4tion constantVVSS�PLL Ground for the built-in VCO Be sure to connect to 0 when not in use
42RFS�I
for the EFM signal5ISETIConnected to a current adjusting resistor for the PDO output
SLI (Slice Level Control) is output to control a data slice level of the RF waveform by the6VVDD�Built-in VCO power supply
43SLCO
digital signal processor7FRIAdjusts the VCO frequency range
44SLIIInput pin for controlling a data slice level by the digital signal processor8VSS�Digital Ground Be sure to connect to 0
45DGND�Digital Ground9EFMOOSlice level control EFM signal output
46FSCOFocus search smoothing capacitor output10EFMINISlice level control EFM signal input
47TBCITBC (Tracking Balance Control) sets a EF balance variable range11TEST2ITest input Incorporates a pull-down resistor Be sure to connect to 0V
48NC�Not used12CLV+ODisc motor control output 3-value output available depending on the command
49DEFODefect detection output for a disc13CLV�O
50CLKIReference clock input The 4.23 MHz of the digital signal processor is inputRough servo/phase control automatic switching monitor output
14V/PO
51CLIMicroprocessor command clock inputOH�:rough servo, �OL�:phase servo
52DATIMicroprocessor command data input15HFLITracking detection signal input Schmidt input
53CEIMicroprocessor command chip enable input16TESITracking error signal input Schmidt input
54DRFODRF (Defect RF) outputs a RF level detection17TOFFOTracking OFF output
FSS (Focus Search Select) is a switching pin for the focus search mode (?search/+search18TGLOTracking gain switching output Raises gain when OL�
55FSSI
for a reference voltage)19JP+OTrack jump control output 3-value output available depending on the command
56VCC2�Servo system and digital system VCC20JP�O
57RFFIIReference voltage bus control is connected21PCKOEFM data playback clock monitor 4.3218 MHz when phase is locked
58VROReference voltage outputSync signal detection output OH� when a sync signal detected from the EFM signal and
59LF2IConstant setting for a disc defect detection22FSEQOthat generated internally coincide
60PH1IConnected to the capacitor for the RF signal peak hold23VDD�Digital power supply
61BH1IConnected to the capacitor for the RF signal bottom holdGeneral purpose output 1 Performs control using a serial data command from the
62LDDOAPC circuit output24CONT1I/Omicroprocessor When not in use, connect to 0V by setting to an input or set to an open
63LDSIAPC circuit inputstate by setting to an output
64VCC1�RF system VCCGeneral purpose output 2 Performs control using a serial data command from the
25CONT2I/Omicroprocessor When not in use, connect to 0V by setting to an input or set to an open
Y Abbreviationstate by setting to an output
EFM : Eight to Fourteen ModulationGeneral purpose output 3 Performs control using a serial data command from the
APC : Auto Power Control
26CONT3I/Omicroprocessor 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
27CONT4I/Omicroprocessor 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
28CONT5I/Omicroprocessor When not in use, connect to 0V by setting to an input or set to an open
state by setting to an output
Y Abbreviation
PLL : Phase Locked Loop
EFM : Eight to Fourteen Modulation
N 39 NN 40 N |
ACEC
