Rainbow Electronics MAX4399 - Manual

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 I
2 C™-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 150
Ω 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.
Applications
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
Features
♦ Low -86dB Video Signal-to-Noise Ratio
♦ 150Ω Driver on All Video Outputs, Including the
RF Modulator
♦ Full CVBS Loop-Through on AUX SCART
♦ Programmable Audio Gain Control of -56dB to
+6dB (TV Audio Outputs)
♦ Clickless Audio Switching (TV Audio Outputs)
♦ Programmable Clamp or Bias on Red/Chroma
Video Inputs
♦ Programmable Video Gain of +6dB, ±1dB on RGB
Outputs
♦ +5V and +12V Standard Supply Voltages
♦ 27MHz -3dB Large-Signal Bandwidth on All Video
Drivers
♦ Supports Three SCART Connectors
MAX4399
Audio/Video Switch for Three SCART
Connectors
________________________________________________________________ Maxim Integrated Products 1
Ordering Information
MAX4399
SCART
SWITCH
MATRIX
I 2 C-COMPATIBLE
2-WIRE INTERFACE
STB
ENCODER
RGB
S-VHS
CVBS
R/L AUDIO
FAST SWITCHING
VCR SCART
CONNECTOR
TONE INPUT
CVBS
S-VHS
RGB
R/L AUDIO
FAST SWITCHING
SLOW SWITCHING
TV SCART
CONNECTOR
AUXILIARY
SCART
CONNECTOR
CHANNEL
3/4 RF
MODULATOR
SUBCARRIER TRAP
CVBS
S-VHS
RGB
R/L AUDIO
SLOW SWITCHING
FAST SWITCHING
CVBS
MONO AUDIO
R/L PHONO AUDIO
CVBS
S-VHS
R/L AUDIO
SLOW SWITCHING
VIDEO
GROUND
DIGITAL
GROUND
AUDIO
GROUND
VIDEO
+5V
DIGITAL
+5V
AUDIO
+12V
SATELLITE DISH
Typical Operating Circuit
19-2925; Rev 0; 8/03
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
EVALUATION KIT
AVAILABLE
PART TEMP RANGE PIN-PACKAGE
MAX4399CTK 0 °C to +70°C 68 Thin QFN
Purchase of I 2 C components of Maxim Integrated Products,
Inc. or one of its sublicensed Associated Companies, conveys
a license under the Philips I
2 C Patent Rights to use these com-
ponents in an I 2 C system, provided that the system conforms
to the I 2 C Standard Specification as defined by Philips.