參數(shù)資料
型號(hào)： MSP3435G
廠商： Electronic Theatre Controls, Inc.
英文描述： MSP 34x5G Multistandard Sound Processor Family
中文描述： 中型34x5G多標(biāo)準(zhǔn)聲音處理器系列
文件頁數(shù)： 27/98頁
文件大?。?/td> 1541K
代理商： MSP3435G
PRELIMINARY DATA SHEET
MSP 34x5G
Micronas
27
(continued)
00 0E
hex
FM Matrix Modes
Defines the dematrix function for the demodulated FM signal
bit[7:0]
00
hex
01
hex
02
hex
03
hex
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
04
hex
In case of
Automatic Sound Select = on
, the FM Matrix Mode is set automati-
cally. Writing to the FM/AM prescale register (00 0E
hex
high part) is still allowed.
In order not to disturb the automatic process, the low part of any I
2
C transmis-
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
for all analog stereo systems by overriding the
internal pilot or identification evaluation, the following steps must be transmitted:
1. MODUS with bit[0] = 0 (Automatic Sound Select off)
2. FM Presc./Matrix with FM Matrix = Sound A Mono (SAP: Sound B Mono)
3. Select FM/AM source channel, with channel matrix set to
“
Stereo
”
(transparent)
FM_MATRIX
00 10
hex
NICAM Prescale
Defines the input prescale value for the digital NICAM signal
bit[15:8]
00
hex
... 7F
hex
prescale gain
examples:
00
hex
off
20
hex
0 dB gain
5A
hex
9 dB gain (recommendation)
7F
hex
+
12 dB gain (maximum gain)
PRE_NICAM
00 16
hex
00 12
hex
I2S1 Prescale
I2S2 Prescale
Defines the input prescale value for digital I
2
S input signals
bit[15:8]
00
hex
... 7F
hex
prescale gain
examples:
00
hex
off
10
hex
0 dB gain (recommendation, RESET condition)
7F
hex
+
18 dB gain (maximum gain)
PRE_I2S1
PRE_I2S2
00 0D
hex
SCART Input Prescale
Defines the input prescale value for the analog SCART input signal
bit[15:8]
00
hex
... 7F
hex
prescale gain
examples:
00
hex
off (RESET condition)
19
hex
0 dB gain (2 V
RMS
input leads to digital full scale)
7F
hex
+
14 dB gain (400 mV
RMS
input leads to digital full scale)
PRE_SCART
Table 3
–
11:
Write Registers on I
2
C Subaddress 12
hex
, continued
Register
Address
Function
Name
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