Philips MSP ICs Service Manual

Micronas: Audio ICs Page 1 of 7

The MSP 34x1G family of single-chip Multistandard Sound Processors covers the sound

MSP34x1G

MSP34x1G Multistandard Sound Processor with Virtual Dolby Surround

(PSDIP64, PSDIP52, PQFP80, or PLQFP64)

Preliminary Data Sheet Edition 1PD (1.2 MB)

Virtual Dolby Application Note Edition 1AN (80 KB)

Application Note: IF Edition 2AN (100 KB)

Preliminary Data Sheet Supplement: Version History Edition 1PDS (41 KB)

Short Description

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Micronas: Audio ICs Page 2 of 7

The MSP 34x1G family of single-chip Multistandard Sound Processors covers the sound
processing of all analog TV-Standards worldwide, as well as the NICAM digital sound

The MSP34x1G further simplifies controlling software. Standard selection requires a single

subsequent switching between mono/ stereo/bilingual; no I2C interaction is necessary

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.

The MSP4x1G has all functions of the MSP34x0G with the addition of a virtual surround
sound feature.

Surround sound can be reproduced to a certain extent with two loudspeakers. The
MSP34x1G includes our virtualizer algorithm “3D-PANORAMA” which has been approved
by the Dolby Laboratories for compliance with the "Virtual Dolby Surround" technology. In
addition, the MSP 34x1G includes our “PANORAMA” algorithm.

These TV sound processing ICs include versions for processing the multichannel
television sound (MTS)signal conforming to the standard recommended by the Broadcast
Television Systems Committee (BTSC). The DBX noise reduction, or alternatively,
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 MSP4x1G has optimum stereo performance without
any adjustments.

All MSP34x1G versions are pin- and software downward-compatible to the MSP34x0D.
I2C transmission only. The MSP34x1G has built-in automatic functions: The IC is able to

detect the actual sound standard automatically (Automatic Standard Detection).
Furthermore, pilot levels and identification signals can be evaluated internally with

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Micronas: Audio ICs Page 3 of 7

subsequent switching between mono/ stereo/bilingual; no I C interaction is necessary
(Automatic Sound Selection).

The ICs are produced in submicron CMOS technology. The MSP34x1G is available in the
following packages: PSDIP64, PSDIP52, PQFP80, and PLQFP64.

Block Diagram of the MSP34x1G

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