FLEXMod 311

DVB-C Modulator with embedded Remultiplexer

Integrated solution for the distribution/regeneration of DVB-C services. The system is composed by a demultiplexer/multiplexer and a DVB-C modulator with RF output. Easily configurable through a UART serial port, allows the development of a complete and very compact modulation system.

Remultiplexer specifications:

ASI and SPI TS inputs
ASI and SPI TS outputs
Automatic recognition, analysis and demultiplexing of the incoming services
Visualization of the Input/Output TS bandwidth
Selection and removal of unwanted services
QoS (Quality of Service) function for the selected services
LCN (Logical Channel Number) insertion for the selected services
NIT (Network Information Table) insertion for a correct Bouquet generation
Automatic service monitoring and PID tracking for the desired services
Supports Service-ID remapping
Embedded DVB-Tables regeneration
Embedded remultiplexer for DVB-C TS reconstruction
PCR restamper for a correct timing reconstruction
Non-volatile memory for system configuration
Easy configuration through asynchronous serial port with high-level commands
No need for additional programming on power-up

Modulator specifications:

QAM Modulator ITU-T J.83 Annex A/C, DVB-C (ETS 300 429)
Selectable RF power output up to -7dBm
Enhanced digital filtering for improved adjacent channel packing
The internal oscillator can be locked to an external arbitrary clock source or to a GPS pps reference clock
Frequency range 0 - 500 MHz RF out through internal 1 GHz DAC

(Click to enlarge)

General specifications:

Data input :	SPI / ASI
Power Supply :	3V3, 1V8, 1V2
Power Consuption :	<3W
Operating Temperature :	from 0 to 70º C
Storage Temperature Range :	from -20 to +85º C
Dimensions :	29 x 49,5 x 9,5 mm
Weight :	20 gr

(click to enlarge)

Modulator Specifications:

Modulation type :	ITU-T J.83 Annex A/C, DVB-C (ETS 300 429)
Symbol Rate :	0-7000 Ms/s
Constellation :	16, 32, 64, 128 e 256 QAM
Spectrum mode :	Normal/Inverted
PCR Restamper :	Selectable ON/OFF
Output Frequency :	0-500 MHz 1 Hz Step (Internal 1Ghz DAC)
Output Level :	-7 dBm typical
MER :	>43 dB typical