Philips 32PFS5709/12 - Page 70

Circuit Descriptions
EN 70 TPM14.2E LA7.
2014-Sep-26
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Figure 7-5 DC/DC converters
7.4 Front-End Analogue and DVB-T, DVB-C,
ISDB-T reception
7.4.1 Front-END Analogue part
The Front-End for Analogue tuner consist of the following key
components:
• TUNER - TDSY - G380D (DVB-T/C, T2 analogue)
• TUNER - SUT-RE231ZN (DVB-T/C, T2 analogue)
• SCALER MT5591IVDJ HSBGA-758 TV Processor
Below find a block diagram of the front-end application for the
front-end application for analogue part.
Figure 7-6 Front-End Analogue block diagram
Figure 7-7 Front-End Analogue block diagram[1]
7.4.2 DVB-T2 DTV part
The Front-End for DVB-T2 DTV consist of the following key
components:
• TUNER - TDSY - G380D(DVB-T/C, T2 analogue)
• TUNER - SUT-RE231ZN (DVB-T/C, T2 analogue)
• SCALER MT5591IVDJ HSBGA-758 TV Processor
• DEMODULATOR CXD2842ER-T4 VQFN-48
Below find a block diagram of the front-end application for
DVB-T2 DTV.
19610_203.eps
P12V
3.3 V
AVDD3V3
3V3SB
1.5V
DV1.2
5V_SW
5V_SW
5V_SW
5V_USB
5V_USB
PVDD
FB755
FB754
AMP STA381BWTR
Q754
Q752
U708
U703
Q702
U102
U701
U709
U705
Tuner
MTK5591
USB
CI-VCC
U707
U405
DDR
Demond IC
EMMC
Flash IC
12V Audio
12V_AL
5V-STB
U4251
WIFI-VCC
MTK5591
+12V
5VSB
P12V
PANEL_VCCQ750
IF
IF_AGC
RF_AGC
MT5591
IF_AGC
TDSY- G 380D
I
2
C
I
2
C
19610_204.eps
IF
IF_AGC
RF_AGC
MT5591
IF_AGC
SUT-RE231ZN
I
2
C
I
2
C
19617_201.eps