DVR-104
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No.
Pin Name
I/O
Pin Function
21
G2
I
Sub beam signal (G2) input
22
H2
I
Sub beam signal (H2) input
23
RREF
−
ALPC smoothing capacitor connection pin for Read
24
WLPF
−
ALPC LPF capacitor connection pin for Write/Erase
25
GND2
−
Analog GND
26
PDIN
I
Laser monitor current input pin for CD-R/RW
27
PDM
I
Laser monitor current (-) input pin for CD-R/RW
28
VCC2
−
Analog power supply
29
RLD
O
Laser driver control output for Read
30
RLDM
I
Laser driver control amp. (-) for Read
31
ELD
O
Laser driver control output for Erase
32
ELDM
I
Laser driver control amp. (-) for Erase
33
EREF
−
ALPC smoothing capacitor connection pin for Erase
34
WLD
O
Laser driver control output for Write
35
WLDM
I
Laser driver control amp. (-) for Write
36
WREF
−
ALPC smoothing capacitor connection pin for Write
37
PELD
O
Peak power output pin
38
CREG
O
Regulator voltage (2.5V) output pin (for monitor)
39
PDD
I
Laser monitor voltage input for DVD
40
LDD
O
Laser driver control output for DVD
41
REFI
I
DSP power supply voltage input (2.5V)
42
REFO2
O
Reference voltage output for DSP (at REFI pin is 2.5V: 1.5V output)
43
CDAC
O
DAC reference voltage output (for monitor)
44
VCC3
−
Analog power supply
45
HPAD
−
Capacitor connection pin for WOBBLE circuit and HPF bandpass setting
46
HPBC
−
Capacitor connection pin for WOBBLE circuit and HPF bandpass setting
47
ADO
O
(A+D) signal output
48
BCO
O
(B+C) signal output
49
CAD
−
Capacitor connection pin for WOBBLE circuit and AGC response speed setting
50
CBC
−
Capacitor connection pin for WOBBLE circuit and AGC response speed setting
51
TOKIN
I
TOK and OWP detecting signal input
52
GND3
−
Analog GND
53
TEC
O
Tracking zerocross signal output
54
TECIN
I
Tracking zerocross comparator signal input
O
Tracking error signal output (bandpass variable)
O
Tracking error signal output (fc=50kHz (Typ.) fixed)
O
Sub-beam signal total output ( (E+F+G+H) signal)
−
Digital power supply
O
Focus error signal output
O
Main side push-pull signal output ( (A+D-B-C) + (F+H-E-G) signal)
−
Capacitor connection pin for WOBBLE circuit and AGC response speed setting
−
Capacitor connection pin for WOBBLE circuit and HPF bandpass setting
O
WOBBLE signal output (analog signal)
O
WOBBLE signal output (digital signal)
65
SHSP
I
Sample and hold pulse input for sub-beam signal
66
SHMP
I
Sample and hold pulse input for main-beam signal
67
SHAPCR
I
Sample and hold pulse input for Read ALPC
68
SHAPCE
I
Sample and hold pulse input for Erase ALPC
69
SHAPCW
I
Sample and hold pulse input for Write ALPC
70
GND4
−
Digital GND
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