Publicidad
3. DIAGRAMA EN BLOQUES
8
GPIO
Function define
F
HDMI CEC
HDMI CEC
HDMI SCL
HDMI SCL
HDMI SDL
HDMI SDL
PWR5V-IN
HDMI power detect
HDMI HPD
HPD to source device(fall edge)
JTRST#
JTAG/A ALL mute(power on/off mute)
JTDO
JTAG/SYS-EDID-WP(L WP)
JTCK
JTAG/AU-AMP-MUTE(H AMP Mute)
20
VGA-SDA/JTMS
JTAG/VGA-SDA
VGA-SCL/JTDI
JTAG/VGA-SDA
OPWRSB
POWER Module on(L)/off(H) Control
ADIN0
SCT1-FS
ADIN3
KEY pad
E
RF-AGCO
RF AGCO
BOOST PWM
Boost PWM for tuner 30v
U1TX
AU-SWA
U1RX
AU-SWB
BL-Dimming
Backlight Dimming
BL ON/OFF
BL ON/OFF
LVDS PWR CTRL
LVDS PWR CTRL(H POWER Enable)
LVDS CTRL0
LVDS CTRL0
RXD1
PIN41:GPIOL[0]
HDMI-PC0
PIN241:GPIOE[0]
HDMI_SW2/SCL
PIN240:GPIOE[1]
HDMI_SW1/SDA
PIN239:GPIOE[2]
D
POWER TREE BLOCK
3.3V/5VSTB
C
Main power supply
From MT8223L
ON/OFF
B
12V/24
A
8
7
6
3.3VSTB
LDO #1
32.59mA
RT9116
SDR_V=2.5v
423mA
DVDD3V3 /3.03mA
DC/DC
AVDD3V3
LDO #2
+5V
MP1482
AS1117
760mA
332mA
LDO #6
5V-TUNER
80mA
7
6
5
key
LED & IR Socket
HDMI P202
EEPROM U003
8223L
sheet1
document
power supply
sheet2
sheet3
8223L,Flash/XTAL/JTAG/UART,Backlight
sheet4
HDMI,USB,VGA
sheet5
AV/YPbPr/Audio MUX
sheet6
Speaker/Line out/Mute
sheet7
LVDS/ Tuner
VCCK=1.1V
367mA
LDO #3
AVDD1V25
AS1117
125.74mA
4
5
3
2
LVDS Socket
Main power P101
POWER
spi flash u001
AMP
XTAL
TPA3113D2
TUNER
U601
TU1 TU2 U503
AUDIO OUT P601
DEPARTAMENTO DE I&D ELECTRONICA
MT22/21/20 Esquema Principal
3
2
1
F
USB P203
20
P304
AV1
E
D
C
B
A
JFG
1
Publicidad
