Polaroid PLA-4200M, Руководство по обслуживанию

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PDP TV SERVICE MANUAL
8.Description of main ICs and components
(1) M52790SP/FP
AV SWITCH with I
2
C BUS CONTROL
DESCRIPTION
The M52790 is AV switch semiconductor integrated
circuit with I
2
C bus control .
This IC contains 2-channels of 4-input audio switches and
2-channels of 4-input video switches. Each channel can be
controled independently .
The video switches contain amplifiers can be controled a
gain of
output 0dB or 6dB .
FEATURES
•Video and stereo sound switches in one package
•Wide frequency range (video switch) ...........DC-20MHz
•High separation ( video switch ).................Crosstalk
-60dB ( typ. ) at 1MHz
•Two types of packages are provided : SDIP with a lead
pitch of 1.778mm ( M52790SP ) ; and SSOP with a lead
pitch of 0.8mm ( M52790FP ) .
APPLICATION
Video equipment
RECOMMENDED OPERATING
CONDITION
Supply voltage 4.7V ~ 9.3V
Rated supply voltage 5V,9V
Maximum output current 63mA(at 9V)
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