Circuit Descriptions
7.
7.4
Front-End Analogue and DVB-C, DVB-T2
reception
7.4.1
Front-End Analogue and DVB-C
Part
The Front-End for the analogue tuner consist of the following
key components:
•
SCALER MT5593FPIJ HSBGA-900
•
TUNER EUROPE TDSY-G480D
Below find a block diagram of the front-end application for
analogue part.
Figure 7-6 Front-End analogue block diagram
7.4.2
Front-End DVB-T2
reception DTV Part
The Front-End for the analogue tuner consist of the following
key components:
•
SCALER MT5593FPIJ HSBGA-900
•
TUNER EUROPE TDSY-G480D
•
DEMODULATOR Si2168-C50-GMR QFN-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 figures
.
Figure 7-8 HDMI input configuration
The HDMI connector has the following specifications:
•
+5V detection mechanism
•
Stable clock detection mechanism
•
Audio return channel(ARC)
•
HPD control
•
CEC control
7.6
Video and Audio Processing - MT5593FPIJ
The MT5593FPIJ 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
•
ATSC/DVB-T/DVB-C/DTMB demodulators
•
True 120Hz Full HD MJC
•
Powerful CPU core
•
3D graphic support OpenGL ES 1.1/2.0
•
A transport de-multiplexer
•
A muti-standard video decoder
•
Rich format audio codec
•
One HDMI 2.0 receiver with 3D support
•
2D/3D converter
•
Ethernet MAC+PHY
•
Local dimming (LED backlight)
The MT5593FPIJ combines DTV front-end video processing
functions, such as NTSC/PAL/SECAM Video Decoder,
MPEG1/2/4/H.264/VC1/RM/AVS/ and h.264/HEVC decode,
The MT5593FPIJ also supports MediaTek MDDi
TM
de-interlace solution which can reach very smooth picture
quality for motions. A 3D comb filter added to the TV decoder
recovers great details for still pictures. The special color
processing technology provides a natural, deep colors and true
studio quality video. Moreover, the MT5593FPIJ family has
built-in high resolution and highquality audio codec. The
MT5593FPIJ family supports ATSC, DVB-T,and DVB-C,
DTMB demodulation functions.
IF
RF_AGC
MT5593
IF_AGC
TDSY-G480D
I
2
C
I
2
C
19930_203.eps
IF
T
S
DA
T
A
RF_AGC
MT5593
Demod
Si2168-C50
IF_AGC
TDSY-G480D
I
2
C
I
2
C
I
2
C
19930_204.eps
20000_203.eps
MT5593
HDMI2
CN504
RX
I
2
C
HDMI3
CN502
RX
I
2
C
CN505
RX
I
2
C
HDMI1