Panasonic EURO 4 Chassis, Technical Manual

Page: 59 / 163

3DQDVRQLF
59
The MSP3410 IC2101 is designed to simultaneously
perform digital demodulation and decoding of
NICAM-coded
TV stereo sound, as well as
demodulation of FM-mono TV sound. Alternatively,
two carrier FM stereo can also be processed within
the MSP3410
IC2101 .
However when receiving an AM sound carrier the
demodulation is still carried out in the IF stage, from
here the AM sound is fed to the MSP3410
IC2101
for further processing.
The MSP3410 IC2101 offers the following
advantages :
1. Two selectable analogue inputs
2. Automatic Gain Control (AGC) for analogue
input
3. Integrated A/D converter for sound I.F. inputs
4. All demodulation and filtering is performed on
chip and individually programmable
5. Simple switching between NICAM standards.
(B/G, I and L)
6. No external filter hardware required
7. Only one crystal clock required (18.432MHz)
8. FM carrier detection for carrier mute function
The features of the MSP3410 IC2101 section are:
9. Flexible selection of audio sources to be
processed
10. Two Digital inputs and one output via I
2
S Bus for
external Digital Signal Processing (DSP)
processing for features such as Surround Sound
and Astra Digital Radio (ADR)
11. Digital Interface to process ADR together with
DRP3510A. (NOT USED).
12. Performance of all de-emphasis systems,
including adaptive Wagner Panda 1, without
external components or controlling.
13. Digitally Performed FM-identification decoding
and de-matrixing.
14. Digital processing for 5 band equalizer, volume,
bass, treble, pseudo stereo and basewidth
enlargement.
15. Simplified controlling of volume, bass, treble etc.
20.1.1.Architecture of the MSP3410
The diagram below shows a simplified block
diagram of the MSP3410
IC2101 . Its architecture is
split into three functional blocks:
1. Demodulator and decoder section
2. Digital signal processing (DSP) section,
performing audio baseband processing
3. Analogue section containing two A/D converters
and 8 D/A converters and channel selection.