Analogue Signal Processing (Front-End); Dvb-T Signal Broadcast Reception Block Diagram; Analog Video Broadcast Reception Block Diagram - Philips 32PFL7403D/10 Service Manual

EN 136 9. Q528.2E LB
HPF HPF
Tuner Tuner
RF RF
TD1716_Mk4 TD1716_Mk4
X6874D X6874D
8MHz 8MHz 8MHz
36.125MHz 36.125MHz 36.125MHz
TDA9898 TDA9898
RF AGC RF AGC
TOP TOP
9.3.3

Analogue signal processing (front-end)

Refer to figure "9-6 Analog video broadcast reception block
diagram" for details of analogue signal processing.
HPF
Tuner
RF
TD1716_Mk4
X6874D
8MHz 8MHz
36.125MHz 36.125MHz
TDA9898
RF AGC
Circuit Descriptions, Abbreviation List, and IC Data Sheets
4MHz 4MHz PLL PLL
Wideband AGC Wideband AGC
IF IF
X3451K X3451K
7MHz 7MHz 5,8MHz 5,8MHz
36.13MHz 36.13MHz 37.6MHz 37.6MHz
IF IF
IF AGC IF AGC
SIF AGC SIF AGC SIF AGC
Side Band Side Band Band Pass Band Pass Band Pass
Filter Filter Filter Filter Filter
PLL PLL
PEAK AGC PEAK AGC
T-AGC T-AGC
VIF AGC VIF AGC VIF AGC
Sound Sound Sound Group Group Group
Nyquist Nyquist Nyquist
Trap Trap Trap Delay Delay Delay
Filter Filter Filter
L AGC L AGC L AGC
Figure 9-5 DVB-T signal broadcast reception block diagram
4MHz PLL
Nested AGC
IF
X3451K
7MHz 5,8MHz
36.13MHz 37.6MHz
IF
IF AGC
SIF AGC
Side Band
Band Pass
Filter
Filter
TOP
PLL
PEAK AGC
T-AGC
VIF AGC
Nyquist Sound
Group
Filter Trap Delay
L AGC
Figure 9-6 Analog video broadcast reception block diagram
DVB-C DVB-C
TDA10023 TDA10023
10-bit 10-bit
Decoding Decoding
DIF DIF
ADC ADC
DVB-T DVB-T
TDA10048 TDA10048
10-bit 10-bit
Decoding Decoding
ADC ADC
LIF LIF
SIF SIF
CVBS CVBS
DVB-C
TDA10023
10-bit
Decoding
DIF
ADC
DVB-T
TDA10048
10-bit
Decoding
ADC
LIF
SIF
CVBS
PLL PLL
TS TS
interface interface
TS TS
PLL PLL
TS TS
interface interface
I_17660_143.eps
170308
PLL
TS
interface
TS
PLL
TS
interface
I_17660_142.eps
170308