Philips 24PHA4309/56 - Page 27

Circuit Descriptions
EN 27TPS14.1A LA 7.
2014-Oct-24
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Figure 7-5 DC/DC converters (for 32"/40"/50"PxA4509)
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:
• TUNER China DT21WN-2-E
• TUNER China DT21CN-2-E
• SCALER MST6931XP-V5 EPLQFP-128
Below find a block diagram of the front-end application for
analogue part.
Figure 7-6 Front-End analogue block diagram
7.5 HDMI
Refer to figure 7-7 HDMI input configuration for the application.
Figure 7-7 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
7.6 Video and Audio Processing - MST6931XP
The MST6931XP 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, MPEG-4)
•
Analog TV Front-End Demodulator
19660_204.eps
FB701
5V_Standby
3.3V_Standby
1.2V_VDDC
+5V_Standby
PANEL_VCC
+5V-Normal
FB603
PVDD
P12V
P24V
FB401
VDDC
VDD3.3
AVDD-ADC
AU3.3
FOR SPI Flash
AVDD-DDR
5V-USB
1.8V-DDR
AVDD3.3 DEMOD
VDD3.3-DMPLL
FB408
FB403
FB404
FB405
FB406
FB407
U702
U701
U703
APA2619RI
Q401
A04449
TH701
Q701
MST6931
I
2
C
I
2
C
IF_AGC
IF
IF_AGC
DT21WN-2-E
SAWless with ATV mode
19660_206.eps
19660_207.eps
MST6931
ARX
BRX
CN501
HDMI 1
CN502
HDMI 2