3-15
Power Supply Pins
Name I/O Function
VPA - Power for RF and serial port
VPB - Power for servo
VNA - GND for RF and serial port
VNB - GND for servo
V33 - Power for output buffer
V25 - Reference Power for servo output
Input Pins
Name I/O Function
DVDRFP, DVDRFN I RF signal input
RFSIN I RF signal input
AIP,AIN I AGC amp. input
DIP,DIN I Analog input for RF single buffer
A,B,C,D I Photo detector interface input
A2, B2, C2, D2 I Photo detector interface input
CD_A, B, C, D I CD photo detector interface input
CD_E, F I CD photo detector interface input
MIN I RF signal input for mirror
DVDPD I APC input
CDPD I APC input
LDON I APC input ON/OFF (L:Open)
I Link signal input (L:Open)
O Mirror monitor output
Output Pins
Name I/O Function
ATOP,ATON O Differential attenuator output
FNP,FNN O Differential normal output
RFAC O Single end normal output
RFDC O RF signal output
FE O Focus error signal output
TE O Tracking error signal output
CE O Center error signal output
MEVO O RFDDC bottom envelope output
DFT O Defect output
MIRR O Mirror detected output
PI O Pull-in signal output
DVDLD O APC output
CDLD O APC output
MNTR O Monitor output
Analog Pins
Name I/O Function
BYP - RF AGC integration capacitor connecting terminal
CP - Differential phase tracking LPF terminal
CN - Differential phase tracking LPF terminal
LCP - Lens shift offset cancel LPF terminal
LCN - Lens shift offset cancel LPF terminal
MP - MIRR top hold terminal
MB - MIRR bottom hold terminal
MEV - RFDC bottom envelope terminal
MLPF - Mirror LPF terminal
TPH - PI top hold terminal
VC - Reference voltage output
V125 - Reference voltage output
RX - Reference resistor input
Serial Port Pins
Name I/O Function
SDEN I Serial data enable
SDATA I/O Serial data
SCLK I Serial clock
IC501 : CDX1881AR
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