Sharp E2358T, E2354T, E2258TA, E2258T2, E2251TA Datasheet

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Sharp E2358T, E2354T, E2258TA, E2258T2, E2251TA Datasheet

PRODUCT INFORMATION

 

RF Components

 

APPLICATIONS:

Group

 

 

 

 

Television/VCR

 

E225x and E235x

Satellite receivers

 

Multi-media adapters

Series PAL Format

Video signal converters

 

Electronic Television

E2258T2 PACKAGAGE

 

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

E225-1

• High level of integration E2258T2 meets CENELEC emissions

 

requirements

PROGRAMMABLE OPTIONS

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.

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)

SELECTION GUIDE

MODEL

PAL

MODULATION

PLL SETS

FORMAT

FACTOR

 

 

 

 

E2251T

G

100%

Channel, TSG, RF On/Off

 

 

 

 

E2251TA

G

55%

Channel, TSG, RF On/Off

 

 

 

 

E2258TA

G/I

55%

Channel, TSG, RF On/Off

 

 

 

 

E2258T2

G/I

55%

Channel, TSG, RF On/Off

 

 

 

 

E2354T

G/I/K

100%

Channel, TSG, Format, Power

Save On/Off, Video/Audio Ratio

 

 

 

 

 

 

 

E2358T

G/I

100%

Channel, TSG, RF On/Off

 

 

 

 

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