Vizio VP50HDTV10A, Service Manual

Page: 36 / 102

CONFIDENTIAL – DO NOT COPY Page 7- 3
File No. SG-0219
Analog Input Port (AFE):
The FLI8532 chip has a sophisticated Analog Front End with 16 reconfigurable inputs through
and analog multiplexer to anti-alias filters before the Analog to Digital Converters (ADCs).
These integrated features eliminate the need for any devices between the input connector
and the pin of the FLI8532.
Figure 8-3 Analog Front End
The figure above depicts the data-path for the AFE and Decoder blocks with connections to
the input multiplexer that selects whether the data follows the Main Video Channel or PIP
video channel.
The analog front end of FLI8532 provides the capability to capture 16 analog video inputs
which can be a combination of Composite (CVBS), S-Video (SY, SC), YPrPb (Y, Pr, Pb) or
RGB (R,G, B).
Digital Input Port (DFE):
The Digital Input Port is a 48bit data input with flexible configuration to support a wide range
of digital sources. It consists of two 24bit ports (PORTA and PORTB), two sets of control
signals (VS, HS, ODD, etc.), and 4 input clocks. Up to 4 different inputs are supported as long
as at least 2 of these inputs are 8bit CCIR656.