Philips 40PFK4100/12 - Front-End Analogue and DVB-T, DVB-C; ISDB-T reception

Circuit Descriptions
EN 47TPN15.1E LA 7.
2015-Oct-30
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div. table
Figure 7-3 DC/DC converters
7.4 Front-End Analogue and DVB-T, DVB-C;
ISDB-T reception
7.4.1 DVB-T/C DTV part
The Front-End for DVB-T/C DTV part consist of the following
key components:
• TUNER EUROPE system ST42CS-2-E
• SCALER NT72453MBG-BA/B TFBGA-466
Below find a block diagram of the front-end application for
DVB-T/C DTV part.
Figure 7-4 Front-End DVB-T/C DTV block diagram
7.4.2 DVB-T2 DTV part
The Front-End for DVB-T2 DTV part consist of the following
key components:
• TUNER EUROPE system ST42CS-2-E
• SCALER NT72453MBG-BA/B TFBGA-466
• 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.
Figure 7-5 Front-End DVB-T2 DTV block diagram
19790_202.eps
NT72453
+5V_SW
500 mA
PWR_ON_2
370 mA
BUCK CONVERTER
TUNER
MAIN CHIP
MAIN CHIP
640 mA
MAIN CHIP
PANEL_T-CON
11mA
SI2166
U201
AO4449
Q701
DV15
NT78822
U201
+5V_SW
+5V_STB
455 mA
PWR_ON_2
TCL_Tuner
DVB-C/T/T2
BUCK CONVERTER
PWR_12V
S2_DEMOD
PWR_ON_2
CI CARD PWR
USB multi-media
POWER protect
AVDD1V2
DV11
Depend on panel
G5250M1T1U
U102
NT72567BG
PCMCIA CARD
+5V_STB
2866 mA(5V)
FB751
K9F1G08U0D
-SIB0
BUCK CONVERTER
1404 mA
PANEL_22"~55"
1mA
FB411
80 mA
FB750
+3V3_TUNER
AD87588
M5723B
U701
MAIN CHIP
10mA
+5V_SW
PANEL_VCC_ON/OFF
FB412
AUDIO AMP
AP3417C
U702
1050mA
POWER SWITCH
DV33
PANEL_VCC
USB
LDO
T2_DEMOD
80 mA
AON4421
Q750
LVDS_VDD
1367 mA
LDO
AZ1117CD
U705
110 mA
POWER SWITCH
+12V_SW
+5V_SW
AUDIO_12V
+5V_SW
1367 mA
VCC_CI
+5V_SW
230 mA
TUNER
PWR_ON_2
285mA
PWR_12V
500 mA
MHL
1367 mA
2581 mA(5V)
230 mA
NT72453
BUCK CONVERTER
LG_Tuner
DVB-S/S2
NAND FLASH
LNB POWER
1.3A
NT72453
TPS54428
U706
CI_PWR_EN
+5V or +12V
MP8126
U202
295 mA
AZ1117_1.35A
U203_SOT-223
1500 mA
AP3417C_1.2A
U703_SOT_23_5
IF_AGC
IF
NT725453
IF_AGC
ST42CS-2-E
I
2
C
I
2
C
19790_204.eps
IF
TS DATA
RF_AGC
NT72453
Demod
NT78822QG/A
IF_AGC
ST42CS-2-E
I
2
C
IF-AGC
I
2
C
I
2
C
19790_205.eps