PRODUCT INFORMATION
RF Components
Group
APPLICATIONS:
•
Television/VCR
•
Satellite receivers
•
Multi-media adapters
•
Video signal converters
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
•I
2
C bus serial PLL control
• Same input connector locations between models
• Reduced component count
• High level of integration E2258T2 meets CENELEC emissions
requirements
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 in-
stead of the previous screwdriver setting, providing software flexibil-
ity 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 I
2
C serial bus interface.
Modulation factors of 100% and 55% are available.
Test and evaluation software is available upon request for pro-
gramming the E225X and E235X modulator models.
E2258T2 PACKAGAGE
LEDOM
LAP
TAMROF
NOITALUDOM
ROTCAF
STESLLP
T1522EG %001ffO/nOFR,GST,lennahC
AT1522EG %55ffO/nOFR,GST,lennahC
AT8522EI/G%55ffO/nOFR,GST,lennahC
2T8522EI/G%55ffO/nOFR,GST,lennahC
T4532EK/I/G%001
rewoP,tamroF,GST,lennahC
oitaRoiduA/oediV,ffO/nOevaS
T8532EI/G%001ffO/nOFR,GST,lennahC
SELECTION GUIDE
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)