Philips 4500 Series Service Manual page 23

7.4 Front-End Analogue ATV reception
7.4.1 Front-End Analogue Part
The Front-End for the analogue tuner consist of the following
key components:
• SCALER MST6852LP-V5 EPLQFP-156
• Silicon Tuner MxL661-AG-R
Below find a block diagram of the front-end application for
analogue part.
SAWless with ATV mode
MxL661-AG-R
I 2 C
IF_AGC
IF_AGC
Figure 7-4 Front-End analogue block diagram
7.5 HDMI
Refer to figures 7-5 HDMI input
MST6852LP
BRX
ARX
CN506
HDMI 1
Figure 7-5 HDMI input configuration
The HDMI connector has the following specifications:
• +5V detection mechanism
• Stable clock detection mechanism
• Integrated EDID
• HPD control
• Sync detection
• TMDS output control
I 2 C
IF
MST6852LP
19910_203.eps
configuration.
CRX
CN507
CN508
HDMI 2 HDMI 3
19910_204.eps
Circuit Descriptions
7.6 Video and Audio Processing - MST6852LP
The MST6852LP is the main audio and video processor (or
System-on-Chip) for this platform. It has the following features:
• Multi-Standard A/V Format Decoder
• The MStarACE6UC Video Processor
• Home Theater Sound Processor
• Embedded Memory for optimized BOM cost
• Multiple HDMI 1.4 Compliant Ports with ARC Support
• One MHL 2.0 Compliant Port
The MST6852LP combines front-end video processing
functions, such as NTSC/PAL/SECAM Video Decoder,
MPEG-2/H.264 decode, analog video decode and HDMI
reception, with advanced back-end video picture
improvements. It also includes next generation Motion
Accurate Picture Processing High flat panel screen resolutions
and refresh rates are supported with formats including 1280 ×
720@ 60Hz and 1920 × 1080 @60Hz. MST6852LP is a highly
integrated TV SoC solution for analog television platform.
MST6852LP supports the latest MHL technology, which allows
user to stream audio and full HD video from mobile devices to
televisions.
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TPS15.2A LA 7. EN 23
2015-May-01