- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄376196 > MSP3455G (Electronic Theatre Controls, Inc.) MSP 34x5G Multistandard Sound Processor Family PDF資料下載
參數(shù)資料
| 型號： | MSP3455G |
| 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)： | 85/98頁 |
| 文件大?。?/td> | 1541K |
| 代理商： | MSP3455G |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁當(dāng)前第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁
PRELIMINARY DATA SHEET
MSP 34x5G
Micronas
85
6.3.6. FIR-Parameter, Registers FIR1 and FIR2
Note:
The use of this register is no longer recom-
mended. Use it only in cases where software compati-
bility to the MSP 34x5D is required. Using the STAN-
DARD SELECTION register together with the MODUS
register provides a more economic way to program the
MSP 34x5G.
Data shaping and/or FM/AM bandwidth limitation is
performed by a pair of linear phase Finite Impulse
Response filters (FIR-filter). The filter coefficients are
programmable and either are configured automatically
by the STANDARD SELECT register or written manu-
ally by the control processor via the control bus. Two
not necessarily different sets of coefficients are
required: one for MSP-Ch1 (NICAM or FM2) and one
for MSP-Ch2 (FM1 = FM-mono). In Table 6
–
14 several
coefficient sets are proposed.
To load the FIR-filters, the following data values are to
be transferred
8 bits at a time embedded
LSB-bound in a 16-bit word
.
The loading sequences must be obeyed. To change a
coefficient set, the complete block FIR1 or FIR2 must
be transmitted.
Note:
For compatibility with MSP 3415B, IMREG1 and
IMREG2 have to be transmitted. The value for
IMREG1 and IMREG2 is 004. Due to the partitioning to
8-bit units, the values 04
hex
, 40
hex
, and 00
hex
arise.
6.3.7. DCO-Registers
Note:
The use of this register is no longer recom-
mended. It should be used only in cases where soft-
ware compatibility to the MSP 34x5D is required.
Using the STANDARD SELECTION register together
with the MODUS register provides a more economic
way to program the MSP 34x5G.
When selecting a TV-sound standard by means of the
STANDARD SELECT register, all frequency tuning is
performed automatically.
IF manual setting of the tuning frequency is required, a
set of 24-bit registers determining the mixing frequen-
cies of the quadrature mixers can be written manually
into the IC. In Table 6
–
15, some examples of DCO reg-
isters are listed. It is necessary to divide them up into
low part and high part. The formula for the calculation
of the registers for any chosen IF-Frequency is as fol-
lows:
INCR
dec
= int(f/fs
2
24
)
with: int = integer function
f
= IF-frequency in MHz
f
S
= sampling frequency (18.432 MHz)
Conversion of INCR into hex-format and separation of
the 12-bit low and high parts lead to the required regis-
ter values (DCO1_HI or _LO for MSP-Ch1, DCO2_HI
or LO for MSP-Ch2).
Table 6
–
13:
Loading sequence for FIR-coefficients
FIR1
00 01
hex
(MSP-Ch1: NICAM/FM2)
No.
Symbol Name
Bits
Value
1
NICAM/FM2_Coeff. (5)
8
see Table 6
–
14
2
NICAM/FM2_Coeff. (4)
8
3
NICAM/FM2_Coeff. (3)
8
4
NICAM/FM2_Coeff. (2)
8
5
NICAM/FM2_Coeff. (1)
8
6
NICAM/FM2_Coeff. (0)
8
FIR2
00 05
hex
(MSP-Ch2: FM1/AM)
No.
Symbol Name
Bits
Value
1
IMREG1
8
04
hex
2
IMREG1 / IMREG2
8
40
hex
3
IMREG2
8
00
hex
4
FM/AM_Coef (5)
8
see Table 6
–
14
5
FM/AM_Coef (4)
8
6
FM/AM_Coef (3)
8
7
FM/AM_Coef (2)
8
8
FM/AM_Coef (1)
8
9
FM/AM_Coef (0)
8
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MSP3465G | MSP 34x5G Multistandard Sound Processor Family |
| MSP3415G | MSP 34x5G Multistandard Sound Processor Family |
| MSP3425G | MSP 34x5G Multistandard Sound Processor Family |
| MSP3435G | MSP 34x5G Multistandard Sound Processor Family |
| MSP3445G | MSP 34x5G Multistandard Sound Processor Family |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSP3457G | 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Multistandard Sound Processor Family |
| MSP3460G | 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Multistandard Sound Processor Family |
| MSP3461G | 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Multistandard Sound Processor Family with Virtual Dolby Surround |
| MSP3465G | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MSP 34x5G Multistandard Sound Processor Family |
| MSP3467G | 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Multistandard Sound Processor Family |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。