28LW-92H (serv.man2) - Sharp TV Service Manual (repair manual). Page 11

• Low power consumption 
• Short-circuit resistant 
• High performance 
• high signal-to-noise ratio 
• High slew rate 
• Low distortion 
• Large output voltage swing. 

 

 
SYMBOL PIN 

OUTA 1 

Output 

A 

INA(neg) 

2 

Inverting input A 

INA(pos) 

3 

Non-inverting input A 

V

SS

 4 

Negative 

supply 

INB(pos) 

5 

Non-inverting input B 

INB(neg) 

6 

Inverting input B 

OUTB 7 

Output 

B 

V

DD

 8 

Positive 

supply 

 

The MSP 34x0G family of single-chip Multi standard 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 shows a simplified functional block diagram of the MSP 34x0G. 

evaluated internally with subsequent switching between mono/stereo/bilingual; no I

2

C interaction is 

necessary (Automatic Sound Selection). 

 
This new generation of TV sound processing ICs now includes versions for processing the multi 
channel 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 MSP 34x0G has 
optimum stereo performance without any adjustments. 
All MSP 34x0G versions are pin and software downward compatible to the MSP34x0D. The 
MSP34x0G further simplifies controlling software. Standard selection requires a single I

2

C transmission 

only. 
The MSP 34x0G 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