Circuit Descriptions
7.
Figure 7-5 DC/DC converters
(for
24"/28"PHG4109/77
)
7.4
Front-End Analogue and DVB-T, DVB-C;
ISDB-T reception
7.4.1
Front-End Analogue part
The Front-End for analogue tuner consist of the following key
components:
•
TUNER BRAZIL SUT-RA231ZN(NTSC, PAL-M, PAL-N
and ISDB-T)
•
SCALER MT5561LVNT/B PBGA-329
Below find a block diagram of the front-end application for
analogue part.
Figure 7-6 Front-End Analogue block diagram
7.4.2
DTV part
The Front-End for DVT part consist of the following key
components:
•
TUNER BRAZIL
SUT-RA231ZN (NTSC,PAL-M, PAL-N
and ISDB-T)
•
SCALER
MT5561LVNT/B PBGA-329
•
DECODER CXD2838ER-T4 VQFN-48
Below find a block diagram of the front-end application for DTV
part.
Figure 7-7 Front-End DVB-T2 DTV block diagram
7.5
HDMI
Refer to figure
1.95A(Max)
120mA(Max)
LDO
Q702
1A
+5V_SW
MT5561 IO Power
DDRV(1.5V)
G5695T11U
AO4449
AVDD3V3
MT5561 DRAM Power
U705
CVDD (1.1V)
FB704
375mA(Max)
300mA(Max)
Demod Power
MOS
1A
1A
DVDD3V3
DC-DC
U705
DC-DC
U411
G9661
G5695T11U
TBD
G1117-33
LED_PWR
LVDS_PWR_EN
G5250M1T1U
USB Power
TUNER3.3V
FB101
USB_PWR_EN0
MOS
U112
AO4449
195mA
Panel Power
USB_PWR_OCP0
Tuner Power
DC-DC
1260mA (22")
504mA (24")
U402
1A
Q401
MOS
Audio AMP Power
AO4449
STA381BW
AON4421
Q466
MOS
+12V_Amp
Audio AMP Power
Q711
STA381BW
FB760
FB701
+12VSB_PRE
DC-DC
G5759F11U
4A
MS5561 Core Power/Analog Power
+5VSB
5A
DC-DC
uP1734PSW8
VCCK
AVDD1V2
+12V
FB702
FB703
G903T63UF
600mA
LDO
PS_ON
3V3SB
U702
U703
U706
19621_201.eps
Q401
A04449-7A
AMP STA381BWTR
Q711
PANEL_VCC
PVDD
12V AMP
12V
IF
X
IF_AGC
RF_AGC
RF_AGC
MT5561
IF_AGC
SUT-RA231ZN
I
2
C
I
2
C
19620_203_140113.eps
140113
IF
IF-AGC
TS DATA
X
RF_AGC
RF_AGC
MT5561
DECODER
CXD2838ER-T4
IF_AGC
SUT-RA231ZN
I
2
C
I
2
C
19620_204_140113.eps
140113