MSP3421G MICRONAS [Micronas], MSP3421G Datasheet - Page 30

• Manufacturer Part Number: MSP3421G
• Description: Multistandard Sound Processor Family with Virtual Dolby Surround
• Manufacturer: MICRONAS [Micronas]

MSP 34x1G
Table 3–11: Write Registers on I
30
Register
Address
(continued)
00 0E
00 10
00 16
00 12
00 0D
hex
hex
hex
hex
hex
Function
FM Matrix Modes
Defines the dematrix function for the demodulated FM signal
bit[7:0]
In case of Automatic Sound Select = on, the FM Matrix Mode is set automati-
cally. Writing to the FM/AM prescale register (00 0E
In order not to disturb the automatic process, the low part of any I
sion to this register is ignored. Therefore, any FM-Matrix readback values may
differ from data written previously.
In case of Automatic Sound Select = off, the FM Matrix Mode must be set as
shown in Table 6–17 of Appendix B.
To enable a Forced Mono Mode set A2 THRESHOLD as described in
Section 6.3.2.on page 89
NICAM Prescale
Defines the input prescale value for the digital NICAM signal
bit[15:8]
I2S1 Prescale
I2S2 Prescale
Defines the input prescale value for digital I
bit[15:8]
SCART Input Prescale
Defines the input prescale value for the analog SCART input signal
bit[15:8]
00
01
02
03
04
00
examples:
00
20
5A
7F
00
examples:
00
10
7F
00
examples:
00
19
7F
hex
hex
hex
hex
hex
hex
hex
hex
hex
hex
hex
hex
hex
hex
hex
hex
hex
hex
... 7F
... 7F
... 7F
2
C Subaddress 12
no matrix (used for bilingual and unmatrixed stereo sound)
German stereo (Standard B/G)
Korean stereo (also used for BTSC, EIA-J and FM Radio)
sound A mono (left and right channel contain the mono
sound of the FM/AM mono carrier)
sound B mono
off
0 dB gain
9 dB gain (recommendation)
off
0 dB gain (recommendation)
off
0 dB gain (2 V
Due to the Dolby requirements, this is the maximum
value allowed to prohibit clipping of a 2 V
hex
hex
hex
12 dB gain (maximum gain)
18 dB gain (maximum gain)
14 dB gain (400 mV
prescale gain
prescale gain
prescale gain
RMS
hex
, continued
input leads to digital full scale)
2
RMS
S input signals
input leads to digital full scale)
hex
high part) is still allowed.
RMS
2
input signal.
C transmis-
PRELIMINARY DATA SHEET
Name
FM_MATRIX
PRE_NICAM
PRE_I2S1
PRE_I2S2
PRE_SCART
Micronas