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LG DRD-8080B Manual page 20

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OUTPUT PINS
Name
Pin No.
61,62
ATOP/ATON
52,53
FNP, FNN
57
RFAC(SIGO)
64
RFDC
40
FE
39
TE
41
CE
32
MEVO
34
DFT
27
MIRR
38
PI
21
DVDLD
22
CDLD
42
MNTR
ANALOG PINS
Pin No.
Name
56
BYP
CP
7
CN
8
LCP
44
LCN
43
28
MP
29
MB
50
MEV
30
MLPF
35
TPH
20
VC
37
V125
49
RX
Type
Description
O
DIFFERENTIAL ATTENUATOR OUTPUTS: Attenuator outputs.
O
DIFFERENTIAL NORMAL OUTPUTS: Filter normal outputs.
O
SINGLE-ENDED NORMAL OUTPUT: Single-ended RF output.
O
RF SIGNAL OUTPUT: Single-ended RF summing output reference to VPB-2.4(V).
FOCUSING ERROR SIGNAL OUTPUT: Focus error output reference to V125.
O
O
TRACKING ERROR SIGNAL OUTPUT: Tracking error output reference to V125.
CENTER ERROR SIGNAL OUTPUT: Center error output reference to V125.
O
RFDDC BOTTOM ENVELOPE OUTPUT: Bottom envelope, PI or bottom
O
clamped RF envelope signal output for Mirror detection.
DEFECT OUTPUT: CMOS output (V33 or VPB). When the PI signal level is
below the detection level or when the Rf signal level is below the detection level,
O
the DFT output goes high. This output is selected by serial port.
MIRROR DETECT OUTPUT: Mirror detect comparator output. CMOS
O
output(V33 or VPB).
PULL-IN SIGNAL OUTPUT: The summing signal output of A, B, C, D or CD_A,
O
B, C, D. Reference to V25/3.
O
APC OUTPUT: DVD APC output pin to control the laser power.
O
APC OUTPUT: CD APC output pin to control the laser power.
MONITOR OUTPUT: Monitor Output signal is selected by PIOR bit7-5
O
Type
Description
The RF AGC integration capacitor C
DIFFERENTIAL PHASE TRACKING LPF PIN: The external capacitance is
connected between CN.
DIFFERENTIAL PHASE TRACKING LPF PIN: The external capacitance is
connected between CP.
LENS SHIFT OFFSET CANCEL LPF PIN: The external capacitance is connected
between LCN.
LENS SHIFT OFFSET CANCEL LPF PIN: The external capacitance is connected
between LCP.
MIRR TOP HOLD PIN: The external capacitance is connected to VPB.
MIRR BOTTOM HOLD PIN: The external capacitance is connected to VPB.
RFDC BOTTOM ENVELOPE PIN: The external capacitance is connected to VPA.
MIRROR LPF PIN: An external capacitance is connected to VPB.
PI TOP HOLD PIN: An external capacitance is connected to VPB.
REFERENCE VOLTAGE OUTPUT: This pin provides the DC bias reference
Voltage (VPB/2). Output impedance is less than 50Ω.
REFERENCE VOLTAGE OUTPUT: DC bias voltage output and it is also used for
servo output reference. (V25/2)
REFERENCE RESISTOR INPUT: An external
from this pin to ground to establish a precise PTAT (proportional to absolute
temperature) reference current for the filter.
is connected between BYP and VPA.
BYP.
12.0kΩ, 1% resistor is connected
25

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