Circuit Descriptions
7.
7.4
Front-End Analogue and DVB-T, ISDB-T
reception
7.4.1
Front-END Analogue part
The Front-End for Analogue tuner consist of the following key
components:
•
TUNER DVB-T/T2/C, PAL/SECAM TDSY-G230D
•
MT5580CPOI PBGA-511
Below find a block diagram of the front-end application for the
front-end application for analogue part.
Figure 7-4 Front-End DVB-T/C DTV block diagram
7.4.2
DVB-T/C DTV part
The Front-End for DVB-T/C DTV consist of the following key
components:
•
TUNER DVB-T/T2/C, PAL/SECAM TDSY-G230D
•
MT5580CPOI PBGA-511
Below find a block diagram of the front-end application for
DVB-T/C DTV.
Figure 7-5 Front-End DVB-T2 DTV block diagram
7.5
HDMI
Refer to figure
for the application.
Figure 7-6 HDMI input configuration
The following HDMI connector can be used:
•
HDMI 1: HDMI input (TV digital interface support HDCP)
with digital audio / PC DVI input/ARC
•
HDMI 2: HDMI input (TV digital interface support HDCP)
with digital audio / PC DVI input
•
HDMI input (TV digital interface support HDCP) with digital
audio / PC DVI input
•
+5V detection mechanism
•
Stable clock detection mechanism
•
Integrated EDID
•
HPD control
•
Sync detection
•
TMDS output control
•
CEC control
7.6
Video and Audio Processing - MTK5580CPOI
The MTK5580CPOI is the main audio and video processor (or
System-on-Chip) for this platform. It has the following features:
•
Multi-standard digital video decoder (MPEG-2, H.264,
MPEG-4)
•
Integrated DVB-T/DVB-C/DVB-S channel decoder
•
Integrated CI+
•
Integrated motion accurate picture processing
•
High definition ME/MC
•
Extended colour gamut and colour booster
•
Integrated USB2.0 host controller
•
Improved MPEG artefact reduction
•
Security for customers own code/settings (secure flash).
The MTK5580CPOI combines front-end video processing
functions, such as DVB-T channel decoding, MPEG-2/H.264
decoding, analog video decode and HDMI reception, with
advanced back-end video picture improvements. High flat
panel screen resolutions and refresh rates are supported with
formats including 1366 × 768 @ 60Hz and 1920 × 1080 @
60Hz. The combination of Ethernet, CI+ and H.264 supports
new TV experiences with IPTV and VOD. On top of that,
optional support is available for 2D dimming in combination
with LED backlights for optimum contrast and power savings
up to 50%.
For a functional diagram of the MTK5580CPOI, refer
to
.
IF
X
X
IF_AGC is no use
RF_AGC
RF_AGC
RF_AGC
MTK5580
IF_AGC
TDSY-G230D
I
2
C
I
2
C
19430_203_130129.eps
130129
IF
TS DATA
X
RF_AGC
RF_AGC
RF_AGC
MTK5580
T2 demod
MT5136AN
IF_AGC
TDSY-G230D
I
2
C
I
2
C
19430_204_130129.eps
130129
19461_200_131209.eps
131209
MT5580
HDMI1
HDMI2
HDMI SIDE
U504
U507
U509
BRX
ARX
CRX
I2C
I2C
I2C