Author Topic: Tandberg MT5600 DVB-T Modulator teardown  (Read 496 times)

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Offline Scratch.HTFTopic starter

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Tandberg MT5600 DVB-T Modulator teardown
« on: January 02, 2023, 05:27:32 am »
Summary of internals:
For all four boards of NDS manufacture (not the power supply): Except for some of the oscillator modules (possibly), all components including the France Telecom (who was involved in developing DVB standards) licensed STV0300 FFT DSP were available off the shelf.
A total of 11 FPGAs (one Lattice, the rest Xilinx including three Virtex devices) have been used with 7 of them large.
The 10 MHz reference OCXO can be disciplined via a 1PPS input (although not a piece of test equipment, this is the first piece of equipment I have seen with such an input which at one time I was curious about).
24 MBytes of Flash is on the board with the 66 MHz MPC860; this board also has an LMX2306 PLL near a VCO module.
1.5 MBytes of Flash is on the board with the 33 MHz Coldfire; this board also has an LMX2306 PLL for each of the 70.09172 MHz and 27 MHz VCO modules along with an AD9850 DDS (125 MHz 32 bit) as well as a DS1820 temperature sensor.
I/Q modulator DACs are AD9752 (125 MSPS 12 bit); this board with them also has a DS1820.
If it runs on Linux, there is some hackability in it.
 


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