MAX9595 Datasheet, PDF (1/28 Pages) Maxim Integrated Products – Audio/Video Switch for Dual SCART Connector

19-3946; Rev 0; 1/06
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Audio/Video Switch for Dual SCART Connector
General Description
The MAX9595 dual SCART switch matrix routes audio
and video signals between an MPEG encoder and two
external SCART connectors under I²C^† 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 I²C 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.
Satellite Set-Top Boxes
Cable Set-Top Boxes
TVs
VCRs
DVDs
Applications
†_{Purchase of I}2_{C components from 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
♦ 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
♦ I²C-Programmable RGB Gain from +5dB to +7dB
♦ I²C-Programmable Audio Gain Control from +6dB
to -56dB
♦ Meets EN50049-1, IEC 933-1, Canal+, and BSkyB
Requirements
Ordering Information
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.
Pin Configuration and Typical Application Circuit appear at
end of data sheet.
System Block Diagram appears at end of data sheet.
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