Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 185Q529.1E LA 9.
Figure 9-7 Analog video broadcast reception block diagram
9.6 PNX85xx
In this chassis, the PNX85xx is responsible for the audio/video
source decode functions and video improvement processing
on both digital and analogue sources. It includes a multi-
standard digital video decoder for MPEG2, and a multi-
standard analogue video decoder for support of PAL, NTSC,
and SECAM standards. Refer to diagram B04 for details.
9.6.1 Video Subsystem
Refer to figure “9-8 PNX85xx video flow diagram” for a
clarification of the blocks that are used in this device.
DVB-T
TDA10048
10-bit
ADC
PLL
Decoding
TS
interface
Tuner
TD1716_Mk4
PLL4MHz
HPF
7MHz
X3451K
36.13MHz
5,8MHz
37.6MHz
DVB-C
TDA10023
10-bit
ADC
PLL
Decoding
TS
interface
PNX8541
Side Band
Filter
SIF AGC
Nyquist
Filter
VIF AGC
Band Pass
Filter
Sound
Trap
Group
Delay
TDA9898
PLL
TOP
PEAK AGC
T-AGC
L AGC
8MHz
36.125MHz
8MHz
36.125MHz
X6874D
RF
IF
DIF
LIF
SIF
CVBS
TS
IF
IF AGC
RF AGC
Nested AGC
I_17660_142.eps
170308
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