MSP3400C datasheet(6/73 Pages) MICRONAS

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PRELIMINARY DATA SHEET

MSP 3400C

MICRONAS INTERMETALL

2. Features of the MSP 3400C

2.1. Features of the Demodulator and Decoder

Sections

The MSP 3400C is designed to perform demodulation

of FM-mono TV sound and two carrier FM systems ac-

cording to the German or Korean terrestrial specs. With

certain constraints, it is also possible to do AM-demodu-

lation according to the SECAM system. Alternatively, the

satellite specs can be processed with the MSP 3400C.

For FM carrier detection in satellite operation, the AM-

demodulation offers a powerful feature to calculate the

carrier field strength, which can be used for automatic

search algorithms. So, the IC facilitates a first step to-

wards multistandard capability with its very flexible

application and may be used in TV-sets, satellite tuners,

and video recorders.

The MSP 3400C facilitates profitable multistandard ca-

pability, offering the following advantages:

– two selectable analog inputs (TV and SAT-IF sources)

– Automatic Gain Control (AGC) for analog input: input

range: 0.14 – 3 Vpp

– integrated A/D converter for sound-IF inputs

– all demodulation and filtering is performed on chip and

is individually programmable

– no external filter hardware is required

– only one crystal clock (18.432 MHz) is necessary

– FM carrier level calculation for automatic search algo-

rithms and carrier mute function

– high deviation FM-mono mode (max. deviation:

approx.

$360 kHz)

2.2. Features of the DSP-Section

– flexible selection of audio sources to be processed

– digital input and output interfaces via I2S-Bus for exter-

nal DSP-processors, surround sound, ADR etc.

– digital interface to process ADR (Astra Digital Radio)

together with DRP 3510 A

– performance of all deemphasis systems including

adaptive Wegener Panda 1 without external compo-

nents or controlling

– digitally performed FM-identification decoding and de-

matrixing

– digital baseband processing: volume, bass, treble,

5-band equalizer, loudness, pseudostereo, and base-

width enlargement

– simple controlling of volume, bass, treble, equalizer

etc.

– increased audio bandwidth for FM-Audio-signals

(20 Hz – 15 kHz,

$1 dB)

2.3. Features of the Analog Section

– three selectable analog pairs of audio baseband in-

puts (= three SCART inputs)

input level:

≤2 V RMS,

input impedance:

≥25 kΩ

– one selectable analog mono input (i.e. AM sound),

input level:

≤2 V RMS,

input impedance:

≥10 kΩ

– two high quality A/D converters, S/N-Ratio:

≥85 dB

– 20 Hz to 20 kHz Bandwidth for SCART-to-SCART-

Copy facilities

– MAIN (loudspeaker) and AUX (headphones): two

pairs of 4-fold oversampled D/A-converters

output level per channel: max. 1.4 V RMS

output resistance: max. 5 k

Ω

S/N-Ratio:

≥85 dB at maximum volume

max. noise voltage in mute mode:

≤10 µV (BW: 20 Hz

...16 kHz)

– one pair of four-fold oversampled D/A-converters sup-

plying two selectable pairs of SCART-Outputs. Output

level per channel: max. 2 V RMS, output resistance:

max. 0.5 k

Ω, S/N-Ratio: ≥85 dB

(20 Hz...16 kHz)

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