Circuit Descriptions
7.
7.4.2
DTV T2 reception
The Front-End for DVT part consist of the following key
components:
•
TUNER EUROPE ST42CS-2-E
•
SCALER MT5800WUEJ BGA-597 Processor
•
DEMODULATOR SI2169-C50-GM
Below find a block diagram of the front-end application for DTV
part.
Figure 7-7 Front-End DVB-T2 DTV block diagram
7.4.3
Front-End DTV-S2 reception
The Front-End for ISTB part consist of the following key
components:
•
TUNER EUROPE ST42CS-2-E
•
SCALER MT5800WUEJ BGA-597 Processor
•
DEMODULATOR Si2166-C50-GMR QFN48
Below find a block diagram of the front-end application for DTV
part.
Figure 7-8 Front-End DVB-
S
2 DTV block diagram
7.5
HDMI
Refer to figure
Figure 7-9 HDMI input configuration
The following HDMI connector can be used:
•
HDMI 1: HDMI input ( TV digital interface support
HDMI1.4/HDCP1.3) with digital audio/PC DVI input/ARC
•
HDMI 2: HDMI input ( TV digital interface support HDCP)
with digital audio/PC DVI input
•
+5V detection mechanism
•
Stable clock detection mechanism
•
HPD control
•
Sync detection
•
TMDS output control
•
CEC control
•
ARC control
•
MHL control
7.6
Video and Audio Processing - MT5800WUEJ
The MT5800WUEJ BGA-597 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
•
DVB-T/DVB-C demodulators
•
Powerful quad core CPU
•
3D graphic support OpenGL ES 2.0
•
A muti-standard video decoder
•
A transport de-multiplexer
•
Rich format audio codec
•
H.264 encoder
•
2D/3D converter
•
HDMI 1.4a receiver with 3D support
•
Local dimming (LED backlight)
•
Ethernet MAC+PHY
•
MHL 2.0 & Standby Charging
•
Panel overdrive control
•
Two-link LVDS, mini-LVDS, V-by-one, EPI
The MediaTek MT5800WUEJ family consists of a DTV
front-end demodulator, a backend decoder and a TV controller
and offers high integration for advanced applications. It
integrates a transport de-multiplexer, a high definition video
decoder, an audio decoder, a two-link LVDS transmitter, a
mini-LVDS transmitter, a V-by-One transmitter, an EPI
transmitter, and an NTSC/PAL/SECAM TV decoder with a 3D
combfilter (NTSC/PAL). The MT5800WUEJ enables consumer
electronics manufacturers to build high quality, low cost and
feature-rich DTV.World-Leading Audio/Video Technology: The
MT5800WUEJ supports
Full-HDMPEG1/2/4/H.264/HEVC(H.265)/MVC/DiviX/Xvid/VC1
/RM/AVS/AVS+/VP8/VP9 video decoder standards, and
JPEG. The MT5800WUEJ also supports MediaTek MDDiTM
de-interlace solution which can reach very smooth picture
quality for motions.A 3D comb filter added to the TV decoder
IF
IF-AGC
TS DATA
RF_AGC
MT5800
DECODER
Si2169
IF_AGC
ST42CS-2-E
I
2
C
I
2
C
I
2
C
20220_207.eps
TS DATA
IP/IN/OP/ON
Tuner I2C
Tuner I2C
System I2C
MT5800
LNB power
S2 Demond
SI2169
S2 tuner
S2 function
20220_208.eps
20220_209.eps
MT5800
HDMI1
HDMI2
CN503
CN501
RX
TX
TX
RX
I
2
C
I
2
C
