MSP3400G 데이터 시트보기 (PDF) - Micronas

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MSP3400G

Multistandard Sound Processor Family

Micronas 

MSP 34x0G

DATA SHEET

Multistandard Sound Processor Family

Release Note: Revision bars indicate significant

changes to the previous edition. The hardware and

software description in this document is valid for

the MSP 34x0G version C12 and following ver-

sions.

1. Introduction

The MSP 34x0G family of single-chip Multistandard

Sound Processors covers the sound processing of all

analog TV-Standards worldwide, as well as the NICAM

digital sound standards. The full TV sound processing,

starting with analog sound IF signal-in, down to pro-

cessed analog AF-out, is performed on a single chip.

Figure 1–1 shows a simplified functional block diagram

of the MSP 34x0G.

These TV sound processing ICs now include versions

for processing the multichannel television sound

(MTS) signal conforming to the standard recom-

mended by the Broadcast Television Systems Com-

mittee (BTSC). The DBX noise reduction, or alterna-

tively, Micronas Noise Reduction (MNR) is performed

alignment free.

Other processed standards are the Japanese FM-FM

multiplex standard (EIA-J) and the FM Stereo Radio

standard.

Current ICs have to perform adjustment procedures in

order to achieve good stereo separation for BTSC and

EIA-J. The MSP 34x0G has optimum stereo perfor-

mance without any adjustments.

All MSP 34xxG versions are pin compatible to the

MSP 34xxD. Only minor modifications are necessary

to adapt a MSP 34xxD controlling software to the

MSP 34xxG. The MSP 34x0G further simplifies con-

trolling software. Standard selection requires a single

I2C transmission only.

The MSP 34x0G has built-in automatic functions: The

IC is able to detect the actual sound standard automat-

ically (Automatic Standard Detection). Furthermore,

pilot levels and identification signals can be evaluated

internally with subsequent switching between mono/

stereo/bilingual; no I2C interaction is necessary (Auto-

matic Sound Selection).

The MSP 34x0G can handle very high FM deviations

even in conjunction with NICAM processing. This is

especially important for the introduction of NICAM in

China.

The ICs are produced in submicron CMOS technology.

The MSP 34x0G is available in the following pack-

ages: PSDIP64-1, PSDIP52-1/-2, PMQFP80-11, and

PMQFP64-2.

Sound IF1

Sound IF2

I2S1

I2S2

SCART1

SCART2

SCART3

SCART4

MONO

ADC

De-

modulator

Pre-

processing

Prescale

SCART

DSP

Input

Select

ADC

Prescale

Loud-

speaker

Sound

Processing

Headphone

Sound

Processing

DAC

DAC

DAC

DAC

SCART

Output

Select

Loud-

speaker

Subwoofer

Headphone

I2S

SCART1

SCART2

Fig. 1–1: Simplified functional block diagram of the MSP 34x0G

6

May 27, 2003; 6251-476-1DS

Micronas

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