4-7
Pin
Symbol
Type
Description
J6
AGND33_1
Analog Ground
Analog Ground
J5
AGND33_2
Analog Ground
Analog Ground
L5
AGND33_3
Analog Ground
Analog Ground
F5
AGND12_1
Analog Ground
Analog Ground
L6
AGND12_2
Analog Ground
Analog Ground
D3
AUX1
Analog I/O
Auxiliary Input
Alternateive Function :
Signal Monitoring
E5
AVDD12_1
Analog
Power(1.2V)
Power Pin
K3
AVDD12_2
Analog
Power(1.2V)
Power Pin
H5
AVDD33_1
Analog
Power(3.3V)
Power Pin
K4
AVDD33_3
Analog
Power(3.3V)
Power Pin
P2
FECFREQ
3.3V LVTTL
I/O,
5V-tolerance,
Slow slew,
2, 4, 6, 8mA
PDR,
75K pull-up
Frequency selection signal output, or LDD serial interface data or
12C SDA. The pin is spike-free at power-on stage.
R3
FECMOD
3.3V LVTTL
I/O,
5V-tolerance,
Slow slew,
2, 4, 6, 8mA
PDR,
75K pull-up
High frequency modulation mode selection signal output, or LDO
serial interface command enable. The pin is spike-free at power-
on stage.
M1
FEDMO
Analog
Output
Disk motor control output.
PWM output.
T4
FEEJECT_
3.3V LVTTL
I/O,
5V-tolerance,
12mA driving,
75K pull-up
Eject/stop key input, active low.
The pin is spike-free at power-on stage.
Alternate function : General IO.
K5
EQBIAS
Analog
Output
Exter Bias Connection for Circuits in EQRF Block & SATA Block.
The external resitor need meet the precision for SATA require-
ment. (23.1K, 1%)
V3
FEFG
3.3V LVTTL
I/O,
5V-tolerance,
12mA
PDR, 75K
pull-up
Motor Hall sensor input. The pin is spike-free at power-on stage.
L3
FEFMO
Analog
Output
Feed motor control. PWM output.
MAJOR IC INTERNAL BLOCK DIAGRAM AND PIN DESCRIPTION
1. IC501 (MT8550L)
1-1. Pin Function
Содержание BD530
Страница 11: ...MEMO 1 10 ...
Страница 70: ...1 SYSTEM PART 1 1 IC501 IC501 MT8550L BAG XTAL 27 MHz 1 3 55 WAVEFORMS ...
Страница 71: ...2 SYSTEM PART 2 SYSTEM MEMORY BA0 2 DWE 3 DCAS 4 DCK 5 IC601 IC602 2 5 4 3 3 56 ...
Страница 72: ...3 VIDEO PART 100 FULL COLOR BAR CVBS 6 COMP_Y 7 COMP_Pb 8 COMP_Pr 9 6 7 8 9 3 57 ...
Страница 73: ...4 AUDIO PART S PDIF MT8550_AUDIO_S PDIF 10 10 3 58 ...
Страница 74: ...5 HDMI PART H_SDA 11 H_SCL 12 HDMI_CLK_N 13 HDMI_0_N 14 11 12 13 14 3 59 ...
Страница 75: ...MEMO 3 60 ...
Страница 77: ...3 62 1 2 3 4 5 ...
Страница 85: ...3 71 3 72 2 MAIN POWER CIRCUIT DIAGRAM A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T ...
Страница 86: ...3 73 3 74 3 MAIN MPEG CIRCUIT DIAGRAM A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T ...
Страница 87: ...3 75 3 76 4 MAIN DDR MEMORY CIRCUIT DIAGRAM A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T ...
Страница 88: ...3 77 3 78 5 MAIN SERVO CIRCUIT DIAGRAM A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T ...
Страница 89: ...3 79 3 80 6 MAIN A V OUTPUT CIRCUIT DIAGRAM A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T ...
Страница 92: ...3 85 3 86 2 SMPS P C BOARD TOP VIEW 7 6 5 4 3 2 1 A B C D E F G H I J ...
Страница 105: ...4 12 2 IC704 R2A30209SP W02Z SPINDLE MOTOR AND 6CH ACTUATOR DRIVER 2 1 Block Diagram ...
Страница 109: ...4 16 MEMO ...