Circuit Descriptions
7.
7.3
DC/DC Converters
The on-board DC/DC converters at the SSB deliver the
following voltages (depending on set execution):
•
+5V2-STANDBY, permanent voltage for the Stand-by
controller, LED/IR receiver and controls; connector
CN9102 pins 2 and 3
•
+12V, input from the power supply for the panel common
(active mode); connector CN9102 pins 10 and 11
•
+24V, input from the power supply for audio amplifier,
connector CN9102 pins 5 and 6
•
+1V1, core voltage supply for MT5325; has to be started up
first and switched “off” last
•
+1V2, supply voltage for power supply for the scaler IC
MT5325
•
+1V5, supply voltage for DDR3
•
+1V5, supply voltage for analogue blocks inside
•
NT5CB64M16DP
•
+3V3, general supply voltage
•
+5V, supply voltage for USB
•
+5V-TUN, supply voltage for tuner
•
+5V-USB, input intermediate supply voltage for USB
•
+3V3 from the power supply for the scaler IC MT5325
Figures gives a graphical representation of the DC/DC
converters with its current consumptions:
Figure 7-3 DC/DC converters
7.4
Video and Audio Processing – MTK5325ZLHJ
The MT5325ZLHJ is the main audio and video processor (or
System-on-Chip) for this platform. It has the following features:
•
Worldwide Multi-standard analog TV demodulator
•
A transport demultiplexer
•
A multi-standard video decoder
•
An H.264 HD720p video decoder
•
An AC3/MPEG2 audio decoder
•
HDMI 1.4 receiver with 3D support
•
Audio codec
•
Tcon
•
Ethernet MAC+PHY
•
True 120 Hz Full HD motion judder cancellation
•
Local dimming
•
Four-link LVDS, mini-LVDS,V-by-one transmitters
The MT5325ZLHJ family is a back end decoder and a TV
controller and offers high integration for advanced
applications. It combines a transport de-multiplexer, a high
definition video decoder, an AC3 audio decoder, a four-link
LVDS transmitter, a mini-LVDS transmitter, a V-by-One
transmitter, and an NTSC/PAL/SECAM TV decoder with a 3D
comb filter (NTSC/PAL).
9
Date Pin
GND
-
GND
-
10
Date Pin
+12V
-
+12V
-
11
GND
+12V
-
+12V
-
12
GBD
DIM
-
DIM
-
13
DATA Pin
ON/OFF -
ON/OFF
-
Connector
Number
CN409
CN8102 CN8103 CN901
CN9101
Description to panel
to panel to panel Mains inlet to SSB
Pin
13
2
13
2
19340_202_120809.eps
120820
Choke
FB1303
(Buck)
FB1304
USB_Power
U7211
AOZ1242AI
U7204
G9084TU3U
(LDO)
L1306
NC/Q6101
AO4435
FB6101
Q7201
AO4435
+24V_SW
PANEL_VCC
U7203
G1117T43Uf
FB4401
(LDO)
NC/FB1503
FB7208
FB1505
U412
PCA9634
PANEL
AmbiGlow2
Ambilight
FB1502
U501
TDA19998HL
HDMI switch
Ambilight
FB1501
RJ45
(HDMI SW)
FB6102
+5V_ON
FB6105
(LDO)
DV33_HDMI
U603
G903T63UE
Aud3A3
Aud3V3
FB6107
U7201
G1117T43Uf
(LDO)
FB5201
DV18
TU_5V
AVDD12_PLL
AV12_MEMPLL
AV12
AVDD12_REC
AVDD12_COM
USB5V
FB1407
+5V_TUNER
U403
NT5CB64M16DP
(DDRIII)
DV15_DDR
U404
NT5CB64M16DP
(DDRIII)
(BUCK)
DV33
FB7106
AV
33
U703
AT1529F11
(BUCK)
U702
G5173R41
FB7206
DV11
AVDD33_REG_STB
AVDD33_XTAL_STB
U411
GL852G-MNG
I VCC33
=100mA
FB7102
U602
STA515W
U601
STA339BWTR
(USB HUB)
FB6103
FB7105
+24V_AMP
FB1701
FB1702
U402
NT5CB64M16DP
(DDRIII)
3V3_P
U3V3A
FB7207
AVDD12_DBMOD
AVDD12_RGB
FB1402
FB1403
U606
MAX9
(BUCK)
U701
RT8074GSP
3.3V
U7205
G903T63UE
DV11
POWER ON
FB7108
U7210
G912T63U
(LDO)
(LDO)
1.2v
U7202
G903T63UF
DV33SB
(LDO)
(Reset IC)
U410
MAX809STRG
FB7110
+24V(1.5A)
+5V_
S
W
+12V(1.5A)
(SOC)
TU101
TDTR-T052D
U401
MT5325
+5V_
S
TB
STB_PWR5V(2.5A)
U409
AT24C128BN
(EEPROM)
(NAND)
U405
Flash H27U2G8F2CTR
(Headphone AMP)
FB7203
FB7103
FB5204
FB7109
FB7107
DV18_HDMI
R1920
R1919
U101
ATBM8846
(DEMODULATOR)
