AVPRO5003 Datasheet, PDF (1/17 Pages) TDK Electronics – Triple SCART A/V Switch

DESCRIPTION
The AVPro^® 5003 is a low cost IC that performs
switching of analog audio and video signals. The
device accepts analog audio and video inputs from
three external sources, typically a video encoder
IC/stereo DAC, an auxiliary SCART connector, and
a VCR SCART connector. The input signals from
these sources are presented to a set of internal
multiplexers that perform the SCART switching
function. Outputs are provided to the VCR and
auxiliary SCART connectors, as well as a TV
SCART connector and an RF modulator. Video
outputs are buffered to drive 150 Ω loads. Audio
outputs are buffered to provide 2 Vrms output into
600 ohms. Typical applications for the 5003 include
digital video recorders (DVRs) and digital receivers
for satellite, cable, and terrestrial television.
AVPro^® 5003
Triple SCART A/V Switch
FEATURES
August 2000
• SCART connections for TV, VCR, AUX
• Integrated video drivers
• Integrated audio drivers
- Negative supply eliminates AC coupling
caps
• 5-bit audio attenuation for TV output
- Attenuation from 0 to 31 dB, 1 dB steps
- Mute of TV outputs
• Serial port control of SCART switching
• 64-lead MQFP packaging (JEDEC MO-108)
BLOCK DIAGRAM
ABLANK
EBLANK
Mux
AUX_R
Enc_R
Enc_C
Mux
SVHS_Cin
AUX_G
Enc_G
Mux
Enc_B
AUX_B
Mux
Mux
AUX_Fnc
VCR_Fnc
Comparitor
Mux
AUX_YCin
VCR_YCin
Mux
Enc_YC
Mux
Enc_Y
SCLK
SDATA
Serial
Port
AUX_Lin
AUX_Rin
Mux
Tgen
Timing
Generator
VCR_Lin
Mux
VCR_Rin
Vref
Vref and
Rbias
Bias
Lin
Mux
Rin
TV Fn
Output
Digital
Output
BLANK
TV_C
TV_R
TV_G
TV_B
SVHS_Cout
AUX_YCout
TV_YCout
TV_Mod
VCR_YCout
TV_Fnc
DO_0
DO_1
VCR_Lout
VCR_Rout
Lout
TV_Lout
Mono
TV_Rout
Rout
AUX_Lout
AUX_Rout