Belson BSA-3750 - Page 33

DVD - DivX Player - BSA3750
33
Servo DAC Interface
166 I/O Auto wide range control VCO signal from/to AWRC DAC (AWRC)
.
168 I/O Central level of RFRP (RFRPCTR).
169 O Output voltage level for tray buffer IC
(TRAY).
171 O Output voltage level for spindle buffer IC (SPINDLE).
172 O Output voltage level for focus buffer IC (FOCUS).
173 O Output voltage level for Sledge buffer IC (plus) (SLEGP)
.
174 O Output voltage level for Sledge buffer IC (minus) (SLEGN)
.
175 O Output voltage level for tracking buffer IC (TRACK).
176 O Test DA output (TESTDA).
Servo Comparator
Interface
139 I High-speed tracking error input (TEXI).
Servo ADC Interfac
e
140 I Test AD input (TESTAD).
141 I Sub-beam addition input signal (SBAD).
142 I Focus input error signal (FEI).
144 I Center error input signal (CEI).
145 I Tracking error input signal (TEI).
146 I
RF ripple/envelope input signal (RFRP).
148 O 2.1V reference voltage (VREF21)
.
149 O 0.9V reference voltage (VREF09)
.
150 I 1.5V reference voltage (VREF15)
.
Servo PLL Interfac
e
151
I
Servo data PLL interface reference current generator. Connect a resistor
between this pin and ground to set reference
current (IREF).
159 O Servo data PLL phase detector filter pin number 1 (PDOFTR1).
160 O Servo data PLL output node of frequency detector charge pump (FDO)
.
161 I Servo data PLL input node of loop filter OP circuit (FTROPI).
163 I Servo data PLL loop filter pin number 1 (PLLFTR1)
.
164 I Servo data PLL loop filter pin number 2 (PLLFTR2)
.
165 O Servo data PLL reference voltage output (VREF0).
ES6688A Device Interfaces (Continued
)
Name Pin Numbers I/O Definition