SAF7118EHV1G518 NXP Semiconductors, SAF7118EHV1G518 Datasheet

SAF7118EHV1G518

Manufacturer Part Number

SAF7118EHV1G518

Description

BGA

Manufacturer

NXP Semiconductors

Datasheet

1.SAF7118EHV1G518.pdf (175 pages)

Specifications of SAF7118EHV1G518

Date_code

09+

Current page: 1 of 175
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1. General description

The SAF7118 is a video capture device that, due to its improved comb ﬁlter performance,

is suitable for various applications such as in-car video reception, in-car entertainment or

in-car navigation.

The SAF7118 is a combination of a four-channel analog preprocessing circuit including

source selection, anti-aliasing ﬁlter and Analog-to-Digital Converter (ADC) with

succeeding decimation ﬁlters from 27 MHz to 13.5 MHz data rate. Each preprocessing

channel comes with an automatic clamp and gain control. The SAF7118 combines a

Clock Generation Circuit (CGC), a digital multistandard decoder containing

two-dimensional chrominance/luminance separation by an adaptive comb ﬁlter and a high

performance scaler, including variable horizontal and vertical up and downscaling and a

brightness, contrast and saturation control circuit.

It is a highly integrated circuit for desktop video and similar applications. The decoder is

based on the principle of line-locked clock decoding and is able to decode the color of

PAL, SECAM and NTSC signals into ITU 601 compatible color component values. The

SAF7118 accepts CVBS or S-video (Y/C) as analog inputs from TV or VCR sources,

including weak and distorted signals as well as baseband component signals Y-P

RGB. An expansion port (X port) for digital video (bidirectional half duplex, D1 compatible)

is also supported to connect to MPEG or a video phone codec. At the so called image port

(I port) the SAF7118 supports 8-bit or 16-bit wide output data with auxiliary reference data

for interfacing to VGA controllers.

The target application for the SAF7118 is to capture and scale video images, to be

provided as a digital video stream through the image port of a VGA controller, for capture

to system memory, or just to provide digital baseband video to any picture improvement

processing.

The SAF7118 also provides a means for capturing the serially coded data in the Vertical

Blanking Interval (VBI) data. Two principal functions are available:

The SAF7118 also incorporates ﬁeld-locked audio clock generation. This function ensures

that there is always the same number of audio samples associated with a ﬁeld, or a set of

ﬁelds. This prevents the loss of synchronization between video and audio during capture

or playback.

All of the ADCs may be used to digitize a Vestigial Side Band (VSB) signal for subsequent

decoding; a dedicated output port and a selectable VSB clock input is provided.

1. To capture raw video samples, after interpolation to the required output data rate, via

2. A versatile data slicer (data recovery) unit

SAF7118

Multistandard video decoder with adaptive comb ﬁlter and

component video input

Rev. 04 — 4 July 2008

the scaler

Product data sheet

-P

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