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E225x

Sharp Electrionic Components
Part Number E225x
Manufacturer Sharp Electrionic Components
Description PAL Format Electronic Television Modulators
Published Apr 1, 2005
Detailed Description PRODUCT INFORMATION APPLICATIONS: • Television/VCR • Satellite receivers • Multi-media adapters • Video signal converter...
Datasheet PDF File E225x PDF File

E225x
E225x

Overview
PRODUCT INFORMATION APPLICATIONS: • Television/VCR • Satellite receivers • Multi-media adapters • Video signal converters RF Components Group E225x and E235x Series PAL Format Electronic Television Modulators FEATURES • • • • • • • • • Power supply: 5 V Small Size: 44 mm × 44 mm × 17 mm Common Footprint Common Electrical Interface Standard pin-pitch between models I2C bus serial PLL control Same input connector locations between models Reduced component count High level of integration E2258T2 meets CENELEC emissions requirements E2258T2 PACKAGAGE E225-1 PROGRAMMABLE OPTIONS • • • • • Output frequency Test Signal Generator (TSG) On/Off Test Modes On/Off Intercarrier spacing for output Mode – G/I/K (E2354T) Audio carrier level: -10 to -17 dB with respect to the Video carrier (E2354T) DESCRIPTION The E225x and E235x Series Modulators are new PAL format modulators with the output frequency set by a PLL.
These modulators provide direct Phase-Locked Loop tuning instead of the previous screwdriver setting, providing software flexibility over output channel control.
The output may be tuned over the PAL channel range of 21 ~ 69.
These two new modulator series retain the common modulator mechanical footprint of previous designs.
A variety of versions and options are available, as shown in the table.
The PLL programming is provided by an I2C serial bus interface.
Modulation factors of 100% and 55% are available.
Test and evaluation software is available upon request for programming the E225X and E235X modulator models.
SELECTION GUIDE MODEL E2251T E2251TA E2258TA E2258T2 E2354T E2358T PAL MODULATION FORMAT FACTOR G G G/I G/I G/I/K G/I 100% 55% 55% 55% 100% 100% PLL SETS Channel, TSG, RF On/Off Channel, TSG, RF On/Off Channel, TSG, RF On/Off Channel, TSG, RF On/Off Channel, TSG, Format, Power Save On/Off, Video/Audio Ratio Channel, TSG, RF On/Off PRODUCT INFORMATION BASIC BLOCK DIAGRAM ANTENNA IN TV OUT Sharp Electronics Corporation Regional Sales Offices North Americ...


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