DAB (Digital Audio Broadcast) Tangent Trio

Specifications of the radio:

Band	FM and band III
Frequency range FM Frequency range DAB	87.5 ... 108 MHz 174 ... 240 MHz
Output power	5 watt RMS
Powersupply	12 Volt dc
Antenna connection	F-connector
Audio connections	3.5 mm jack for headphone 3.5mm jack aux input 3.5mm jack line output
weight	2.4 kg

Here in the south-west of the Netherlands, close to the Belgium border, only the Belium radiostations can be received in DAB
The radio gives in the display that there are dutch radio DAB stations, but is unable to give any sound since the switch to DAB+ .
That means the radio is unusable for the reception of DAB transmissions.
That is why it fits, however only a couple of years old, very wel between the ancient radio's.
For more info about these transmissions see www.radiozenders.org/dab
On a spectrumanlyser these transmissions look like:


Inside of the receiver

The receiver compizes 2 PCB's :

Powersupply and LF :	TDA7266 and 5Volt and 3Volt powersupply
RF and processor :	Gyro-1122 board
Controlpanel

Gyro-1122 Board
On this board there is the FM and DAB receiver.
More data about this board you can find here
This board is unable re receive the L-band. Demodulation of the DAB signal is done by a DSP (TMS320DRE200) of Texas Instruments.
I was unable to find datailed info about this DSP because it was already out of production.
Some info about the DSP processor is here
A couple of key componens on this board :

DSP processor:	TMS320DRE200 of Texas instruments
clock oscillator for DSP	16.384 MHz
clock oscillator	24.576 Mhz
flash-memory	39VF020 2Mbit 256x8
varicaps	BB202 of NXP (marking L2)

Pictures of the dsp-board :

Frontpanel on which the module is mounted :

With mounted module :

PCB which is mounted on the backside, with 3.3 volt and 5 Volt powersupply and audioamplifier with TDA7266: