MSP44X0G データシートの表示（PDF） - Micronas

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MSP44X0G

Multistandard Sound Processor Family

Micronas 

MSP 44x0G

PRELIMINARY DATA SHEET

Multistandard Sound Processor Family

1. Introduction

The MSP 44x0G 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.

Fig. 1–1 shows a simplified functional block diagram of

the MSP 44x0G.

This new generation of TV sound processing ICs now

includes versions for processing the multichannel tele-

vision sound (MTS) signal conforming to the standard

recommended by the Broadcast Television Systems

Committee (BTSC). The DBX noise reduction, or alter-

natively, Micronas Noise Reduction (MNR) is per-

formed 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 44x0G has optimum stereo perfor-

mance without any adjustments.

The MSP 44x0G 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 44x0G can handle very high FM deviations

even in conjunction with NICAM processing. This is

especially important for the introduction of NICAM in

China.

All MSP 44xxG versions are pin and software compati-

ble to the MSP 34xxG. The MSP 44x0G has all func-

tions of the MSP 34x0G with additional multichannel

digital inputs and outputs. Its sample rate of 48 kHz

makes this device ideal for applications in digital TV

systems. In general, outline dimensions, electrical

characteristics and application diagrams are identical

to the MSP 34x0G.

The ICs are manufactured in submicron CMOS tech-

nology. The MSP 44x0G is available in the following

packages: PQFP80, PLQFP64, and PSDIP64.

Sound IF1

Sound IF2

I2S1

I2S2

I2S3

SCART1

SCART2

SCART3

SCART4

MONO

ADC

De-

modulator

Pre-

processing

Prescale

SCART

DSP

Input

Select

ADC

Prescale

Fig. 1–1: Block diagram of the MSP 44x0G

6

Loud-

speaker

Sound

Processing

Headphone/

Surround

Sound

Processing

DAC

DAC

DAC

DAC

SCART

Output

Select

Loud-

speaker

Subwoofer

Headphone

I2S

SCART1

SCART2

Micronas

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