MSP3410D datasheet(6/83 Pages) MICRONAS

6 / 83 page

MSP 34x0D

PRELIMINARY DATA SHEET

Micronas

2. Basic Features of the MSP 34x0D

2.1. Demodulator and NICAM Decoder Section

The MSP 34x0D is designed to perform demodulation

of FM or AM-Mono TV sound. Alternatively, two-carrier

FM systems according to the German or Korean terres-

trial specs or the satellite specs can be processed with

the MSP 34x0D.

Digital demodulation and decoding of NICAM-coded

TV stereo sound, is done only by the MSP 3410.

The MSP 34x0D offers a powerful feature to calculate

the carrier field strength which can be used for auto-

matic standard detection (terrestrial) and search algo-

rithms (satellite). The IC may be used in TV sets, as

well as in satellite tuners and video recorders. It offers

profitable multistandard capability, including the follow-

ing advantages:

– two selectable analog inputs (TV and SAT-IF

sources)

– Automatic Gain Control (AGC) for analog IF input.

Input range: 0.10–3Vpp

– integrated A/D converter for sound-IF inputs

– all demodulation and filtering is performed on chip

and is individually programmable

– easy realization of all digital NICAM standards (B/G,

I, L, and D/K) with MSP 3410.

– FM demodulation of all terrestrial standards (incl.

identification decoding)

– FM demodulation of all satellite standards

– no external filter hardware is required

– only one crystal clock (18.432 MHz) is necessary

– FM carrier level calculation for automatic search

algorithms and carrier mute function

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

approx.

±360 kHz)

Fig. 2–1: Main I/O signals of the MSP 34x0D

2.2. DSP Section (Audio Baseband Processing)

– flexible selection of audio sources to be processed

– two digital input and one output interface via I2Sbus

for external DSP processors, featuring surround

sound, ADR etc.

– digital interface to process ADR (ASTRA Digital

Radio) together with DRP 3510A

– performance of all deemphasis systems including

adaptive Wegener Panda 1 without external compo-

nents or controlling

– digitally performed FM identification decoding and

dematrixing

– digital baseband processing: volume, bass, treble,

5-band equalizer, loudness, pseudostereo, and

basewidth enlargement

– simple controlling of volume, bass, treble, equalizer

etc.

2.3. Analog Section

– four selectable analog pairs of audio baseband

inputs (= four SCART inputs)

input level:

≤2V

RMS,

input impedance:

≥25 kΩ

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

input level:

≤2V

RMS,

input impedance:

≥15 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 fourfold oversampled D/A-converters

output level per channel: max. 1.4 VRMS

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)

– two pairs of fourfold oversampled D/A converters

supplying two selectable pairs of SCART outputs.

output level per channel: max. 2 VRMS,

output resistance: max. 0.5 k

Ω,

S/N-Ratio:

≥85 dB (20 Hz ... 16 kHz)

Loudspeaker

OUT

Subwoofer

OUT

Headphones

OUT

SCART1

OUT

SCART2

OUT

MSP 34x0D

ADR

I2SI2C

Sound IF 1

Sound IF 2

MONO IN

SCART1 IN

SCART2 IN

SCART3 IN

SCART4 IN

MSP3410D Datasheet(PDF) 6 Page - Micronas

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