MAX4399 Datasheet, PDF (1/33 Pages) Maxim Integrated Products – Audio/Video Switch for Three SCART Connectors

19-2925; Rev 0; 8/03
EVAALVUAAILTAIOBNLEKIT
Audio/Video Switch for Three SCART
Connectors
General Description
The MAX4399 audio/video switch is ideal for digital set-
top box applications. The MAX4399 provides video and
audio routing from the MPEG decoder source to the TV,
VCR, and AUX SCART (peritelevision) connectors. In
addition, the TV audio channel features clickless
switching and programmable volume control from
-56dB to +6dB in 2dB steps. The device can mix an
auxiliary audio tone into the TV audio channel and can
mix the stereo audio signal into a mono audio signal.
The MAX4399 directly drives an external RF modulator
with a composite video with blanking and sound
(CVBS) signal created by an on-chip luma/chroma
(Y/C) mixer and external RLC trap filter. The MAX4399
features a fast-mode I²C™-compatible 2-wire interface
allowing communication at data rates up to 400kbps.
The MAX4399 operates with standard +5V and +12V
single supplies and supports slow and fast switching.
All video and audio inputs are AC-coupled. The DC
biases of all input and output signals are set to pre-
defined levels. All video outputs, including the RF mod-
ulator, drive standard 150Ω loads. Red, green, and
blue (RGB) outputs feature a programmable gain of
+6dB ±1dB. All other video outputs have a fixed +6dB
gain. The VCR and AUX audio output gains are pro-
grammable for -6dB, 0dB, and +6dB.
The MAX4399 is available in a compact 68-pin thin
QFN package and is specified for the 0°C to +70°C
commercial temperature range. The MAX4399 evalua-
tion kit is available to help speed designs.
Satellite Receivers
Satellite Set-Top Boxes
Cable Set-Top Boxes
Terrestrial Set-Top Boxes
Game Consoles
TVs
Digital Television (DTV)
VCRs
DVD Players
DVD+R/W Players
Applications
Purchase of I²C components of Maxim Integrated Products,
Inc. or one of its sublicensed Associated Companies, conveys
a license under the Philips I²C Patent Rights to use these com-
ponents in an I²C system, provided that the system conforms
to the I²C Standard Specification as defined by Philips.
Features
o Low -86dB Video Signal-to-Noise Ratio
o 150Ω Driver on All Video Outputs, Including the
RF Modulator
o Full CVBS Loop-Through on AUX SCART
o Programmable Audio Gain Control of -56dB to
+6dB (TV Audio Outputs)
o Clickless Audio Switching (TV Audio Outputs)
o Programmable Clamp or Bias on Red/Chroma
Video Inputs
o Programmable Video Gain of +6dB, ±1dB on RGB
Outputs
o +5V and +12V Standard Supply Voltages
o 27MHz -3dB Large-Signal Bandwidth on All Video
Drivers
o Supports Three SCART Connectors
Ordering Information
PART
MAX4399CTK
TEMP RANGE
0°C to +70°C
PIN-PACKAGE
68 Thin QFN
Typical Operating Circuit
VIDEO DIGITAL AUDIO
+5V +5V +12V
RGB
CVBS
S-VHS
S-VHS
STB
ENCODER
CVBS
R/L AUDIO
RGB
R/L AUDIO
TV SCART
CONNECTOR
FAST SWITCHING
I²C-COMPATIBLE
2-WIRE INTERFACE
SATELLITE DISH
TONE INPUT
CVBS
MAX4399
SCART
SWITCH
MATRIX
SLOW SWITCHING
FAST SWITCHING
CVBS
MONO AUDIO
CHANNEL
3/4 RF
MODULATOR
SUBCARRIER TRAP
S-VHS
RGB
VCR SCART
CONNECTOR
R/L AUDIO
FAST SWITCHING
SLOW SWITCHING
R/L PHONO AUDIO
CVBS
S-VHS
R/L AUDIO
AUXILIARY
SCART
CONNECTOR
SLOW SWITCHING
VIDEO
GROUND
AUDIO
GROUND
DIGITAL
GROUND
________________________________________________________________ Maxim Integrated Products 1
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