Philips TPN15.2E LA Service Manual page 28

EN 28 7. TPN15.2E LA
DTOS40CIL034B
I 2 C
IF_AGC
IF_AGC
Figure 7-4 Front-End DVB-T/C DTV block diagram
7.4.2 DVB-T2 reception
The Front-End for DVB-T2 DTV part consist of the following
key components:
• TUNER EUROPE DTOS40CIL034B
• SCALER NT72666BG-BA/D HS-PBGA-1135
• DEMODULATOR NT78822QG/A QFN-48 for DVB-T2
DTV part
Below find a block diagram of the front-end application for
DVB-T2 DTV part.
DTOS40CIL034B
2
I C
IF_AGC
RF_AGC
Figure 7-5 Front-End DVB-T2 DTV block diagram
7.5 Front-End DVB-S(2) reception
The Front-End for the DVB-S(2) application consist of the
following key components:
• TUNER EUROPE TDQS-A751F for K
• SCALER NT78822QG/A QFN-48
• SCALER NT72666BG-BA/D HS-PBGA-1135
Below find a block diagram of the front-end application for
DVB-S(2) reception.
2015-Nov-27
Circuit Descriptions
2
I C
IF
NT72666
19970_203.eps
2
I C
IF
Demod
IF-AGC NT78822
I 2 C
NT72666
19970_204.eps
S2 function
S2 tuner
Tuner I2C
IP/IN/OP/ON
Figure 7-6 Front-End DVB-S2 DTV block diagram
The application supports the following protocols:
• Polarization selection via supply voltage ( 18V = horizontal,
13V = vertical)
• Band selection via "toneburst" (22kHz): tone "on" = "high"
band, tone "off" = "low" band
• Satellite ( LNB) selection via DiSEqC 2.0 protocol
• Reception of DVB-S ( supporting QPSK encoded signals)
and DVB-S2 ( supporting QPSK, 8PSK encoded signals)
7.6 HDMI
Refer to figure 7-7 HDMI input configuration
NT72666
2
I C
RX
CN501
HDMI1
Figure 7-7 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
• +5V detection mechanism
• Stable clock detection mechanism
• HPD control
• Sync detection
• TMDS output control
• CEC control
7.7 Video and Audio Processing -
NT72666MBG-BA
The NT72666 is the main audio and video processor (or
System-on-Chip) for this platform. It has the following features:
• Support pixel format YUV420 only for all video codec
except JPEG
• H.264 Constrained Baseline/Main/High Profiles @
4K2Kp30(Level 5.0 and Level 5.1 under limited bit-rate)
• MVC Stereo High Profile @ 1080p60
back to
div. table
System I2C
LNB power
NT78822QG/A
Tuner I2C
TS DATA
for the application.
I 2 C
RX
NT72466
19970_205.eps
CN502
HDMI 2
19970_206.eps