AVPro® 5002R
Dual SCART A/V Switch
DATA SHEET
Functional Description
SCART Video Switching
The 5002R is an audio/video switching device. The
device integrates both audio and video drivers so that it
can directly drive the SCART interface. All
programmable functions of the device are controlled
through a standard I2C serial interface and a set of
internal registers.
The device is designed to accept video signals from an
auxiliary SCART connector, TV SCART connector, and
an external video encoder/DAC device. The devices
include a set of analog multiplexers that receive video
signals from these sources and allow routing of the
signals to the various video outputs. The video output
drivers have a nominal gain of 2 V/V to allow for a
series resistance of 75Ω prior to the 75Ω termination. A
block diagram of the video switching function is
provided in Figure 1. Details of the register settings are
provided in the section titled “Serial Port Register
Tables”.
The device will interface to an external video encoder
that provides six video outputs. In addition, the 5002R
includes two programmable digital outputs and
provides inputs for the TV SCART audio/video.
4V
0V
ABLANK
BLANK
Mux
EBLANK
Aux_R
Enc_R
Enc_C
Gain
TV_R
Mux
Mux
Enc2_C
Aux_Cout
Aux_G
Enc_G
Aux_B
Enc_B
TV_G
TV_B
Mux
Mux
Enc_Y
Mux
Mux
TV_YCout
Enc_YC
Aux_YCout
TV_YCin
Enc2_Y
Aux_YC
Aux_Cin
Mux
Mod_YC
Aux_Fnc
Comparator
VGen
Mux
TV_Fnc
FIGURE 1: 5002R VIDEO SWITCHING BLOCK DIAGRAM
Note: Aux_Cin, Enc2_Y and Enc2_C are not available on the 48QFN package option.
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© 2008 TERIDIAN Semiconductor Corporation
Rev 2.1
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
