Major Ic Internal Block Diagram And Pin Description; Ic501 (Mt8560) - LG BH5140S Service Manual

MAJOR IC INTERNAL BLOCK DIAGRAM AND PIN DESCRIPTION

1. IC501 (MT8560)

1-1. Pin Function
PIN NO.
F6 AGND33_1
K7 AGND33_2
F7 AGND33_3
H5 AGND12_1
H7 AGND12_2
F5
K5 AVDD12_1
J4 AVDD12_2
E3 AVDD33_1
J6 AVDD33_3
L4 FECFREQ
L3
P3
T1 FEEJECT_
R1
N1
N2
N3
M3
H4
A3
C4 FPDODVD
L2 FEGAINSW1
M2 FEGAINSW2
L1 FEGAINSW3
R2
SYMBOL TYPE
Analog Ground
Analog Ground
Analog Ground
Analog Ground
Analog Ground
AUX1 Analog I/O
Analog Power(1.2V)
Analog Power(1.2V)
Analog Power(3.3V)
Analog Power(3.3V)
3.3V LVTTL I/O,
5V-tolerance,
Slow slew,
2, 4, 6, 8 mA PDR,
75K pull-up (3.3 V)
3.3V LVTTL I/O,
5V-tolerance,
FECMOD Slow slew,
2, 4, 6, 8 mA PDR,
75K pull-up (0 V)
FEDMO Analog Output
3.3V LVTTL I/O,
5V-tolerance,
6 mA driving,
75K pull-up (3.3 V)
3.3V LVTTL I/O,
5V-tolerance,
FEFG
6 mA PDR,
75K pull-up (3.3 V)
FEFMO Analog Output
FEFMO2 Analog Output
FEFMO3 Analog I/O
FEFMO4 Analog I/O
FOO Analog Output
FPDOCD Analog Input
Analog Input
Analog Output
Analog Output
Analog Output
3.3V LVTTL I/O,
5V-tolerance,
FEGIO0
2, 4, 6, 8mA PDR,
75K pull-down (0 V)
Analog Ground
Analog Ground
Analog Ground
Analog Ground
Analog Ground
Auxiliary Input. Alternateive Function : Signal Monitoring
Power Pin
Power Pin
Power Pin
Power Pin
Frequency selection signal output, or LDD serial interface data
or 12C SDA.
The pin is spike-free at power-on stage.
High frequency modulation mode selection signal output,
or LDO serial interface command enable.
The pin is spike-free at power-on stage.
Disk motor control output. DAC output.
Eject/stop key input, active low.
The pin is spike-free at power-on stage.
Alternate function : General IO.
Motor Hall sensor input.
The pin is spike-free at power-on stage.
Feed motor 1 control. DAC output.
Feed motor 2 control. DAC output.
Feed motor 3 control. DAC output.
Alternative Function : Auxiliary servo input.
Feed motor 4 control. DAC output.
Alternative Function : Auxiliary servo input.
Focus servo output.
PDM output of focus servo compensator.
Laser Power Monitor Input for CD APC / Differential negative
input
Laser Power Monitor Input for DVD APC / Differential positive
input
Read gain switch 1.
Read gain switch 2.
Read gain switch 3.
LDD serial interface data.
The pin is spike-free at power-on stage.
The pin is not allowed to pull-up in circuit layout.
Alternate function :
1. Internal monitored signal output
2. General IO
4-5
DESCRIPTION