Rainbow Electronics MAX9595 - Manual

General Description
The MAX9595 dual SCART switch matrix routes audio
and video signals between an MPEG encoder and two
external SCART connectors under I
2 C † control, and
meets the requirements of EN50049-1, IEC 933-1,
Canal+, and BSkyB standards.
The video and audio channels feature input source
selection multiplexers, input buffers, and output buffers
for routing all inputs to selected outputs.
The MAX9595 provides programmable gain control from
+5dB to +7dB in 1dB steps for red, green, and blue com-
ponent video signals. All other video outputs have a fixed
+6dB gain. Additional features include an internal luma
and chroma (Y/C) mixer that generates a composite
video signal (CVBS) to supply an RF modulator output,
and internal video reconstruction lowpass filters with a
cutoff frequency of 6MHz. The MAX9595 TV audio chan-
nel features clickless switching and programmable vol-
ume control from -56dB to +6dB in 2dB steps. The VCR
audio output also has programmable gain for -6dB, 0dB,
or +6dB. The device also generates monaural audio from
left and right stereo inputs. All audio drivers deliver a
3.0V
RMS minimum output.
The MAX9595 operates with standard 5V and 12V
power supplies and supports slow-switching and fast-
switching signals. The I
2 C interface programs the
gain and volume control, and selects the input source
for routing.
The MAX9595 is available in a compact 48-pin thin
QFN package and is specified over the 0°C to +70°C
commercial temperature range.
Applications
Satellite Set-Top Boxes
Cable Set-Top Boxes
TVs
VCRs
DVDs
Features
♦ Video Outputs Drive 2V
P-P
into 150Ω
♦ Audio Outputs Drive 3V
RMS into 10kΩ
♦ Clickless, Popless Audio Gain Control and
Switching
♦ Interrupt Output Detects Changes on Slow
Switching Input
♦ AC-Coupled Video Inputs with Internal Clamp and
Bias
♦ DC-Coupled Video Outputs
♦ Composite Video Signal Created Internally from
Y/C Inputs
♦ Internal Video Reconstruction Filters Provide
-50dB at 27MHz
♦ Single-Ended Audio Input
♦ Red/Chroma Switch for Bidirectional I/O
♦ I
2 C-Programmable RGB Gain from +5dB to +7dB
♦ I 2 C-Programmable Audio Gain Control from +6dB
to -56dB
♦ Meets EN50049-1, IEC 933-1, Canal+, and BSkyB
Requirements
MAX9595
Audio/Video Switch for Dual SCART Connector
________________________________________________________________ Maxim Integrated Products 1
Ordering Information
19-3946; Rev 0; 1/06
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.
Pin Configuration and Typical Application Circuit appear at
end of data sheet.
System Block Diagram appears at end of data sheet.
EVALUATION KIT
AVAILABLE
† Purchase of I 2 C components from 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.
PART TEMP RANGE
PIN-
PACKAGE PKG
CODE
MAX9595CTM+ 0°C to +70°C
48 Thin QFN-EP*
(7mm x 7mm)
T4877-6
*EP = Exposed paddle.
+Denotes lead-free package.