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FLEXMod 133/633

MFN/SFN DVB-T Modulator

Integrated solution for the modulation of DVB-T MFN/SFN services. The system is composed by a demultiplexer/remultiplexer and a COFDM modulator with RF output. Easily configurable through a UART serial port, allows the development of a complete and very compact modulation system.

Resoruces

Starter kit

General specifications

ASI TS Inputs: primary and secondary.
ASI TS Outputs: Remuxed/Passthrough.
Automatic recognition, analysis and remultiplexing of the incoming services.
Visualization of the Input/Output TS bandwidth.
Selection and removal of unwanted 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.
Embedded DVB-Tables regeneration for a correct TS output 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 reconfiguration on power-up.

Modulator specifications:

COFDM Modulator: DVB-T/H ETSI EN 300 744 V1.5.1.
Selectable RF power output up to -7dBm.
Digital reprogrammable filters (Precorrector).
Subnetwork mode for DVB-T to DVB-T Gap filler implementations.
Internal oscillator locked to a GPS PPS reference clock.
SFN operation with both PPS & 10 MHz or only through PPS.
Frequency Range 0 - 3 GHz RF out through internal 2,4 GHz DAC.

Modulation type: COFDM DVB-T (ETSI EN 300 744).
Channel Bandwidth: 6-7-8 MHz.
Carriers: 2K-4K-8K.
Hierarchy: Alpha 0, 1, 2, 4.
Constellation: QPSK, 16QAM, 64QAM.
FEC: 1/2, 2/3, 3/4, 5/6, 7/8.
Guard Interval: 1/4, 1/8, 1/16, 1/32.
Spectrum mode: Normal/Inverted.
Output Frequency: 0-3 GHz 1 Hz Step (2.4GHz DAC in 1° 2° & 3° Nyquist).
Output Level: -7 dBm typical.
MER: ›50 dB typical @ 36.15MHz.