Daewoo PF2720 Service Manual page 15

MSP3440G-B8 (NB01)
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 MSP34X0G version B5 and
following versions.
1. Introduction
The MSP34X0G 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 processed analog AF-out,
is performed on a single chip. Figure 7 shows
a simplified functional block diagram of the
MSP34X0G.
This new generation of TV sound processing
ICs now includes 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
2. Block Diagram
Fig. 7 Simplified Functional Block Diagram of the MSP34X0G
3. Refer to Table 4 about Functions and Service Data of MSP34X0G's Each Pins.
SERVICE MANUAL
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 MSP34X0G has optimum stereo
performance without any adjustments.
All MSP34X0G versions are pin and
software downward-compatible to the
MSP34X0D. The MSP34X0G further simplifies
controlling software. Standard selection
requires a single I
The MSP34X0G has built-in automatic
Functions: The IC is able to detect the actual
sound standard automatically (Automatic
Standard Detection). Furthermore, pilot levels
and identification
internally with subsequent switching between
mono/stereo/bilingual; no I
necessary (Automatic Sound Selection).
The ICs are produced in submicron CMOS
technology.
The MSP34X0G is available in the following
packages: PLCC68, PSDIP64, PSDIP52, PQFP80
and PLQFP64.
13
2
C transmission only.
signals can be
2
C interaction is
evaluated