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BU9409FV 데이터시트 PDF




ROHM Semiconductor에서 제조한 전자 부품 BU9409FV은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 BU9409FV 자료 제공

부품번호 BU9409FV 기능
기능 32bit Audio DSP
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BU9409FV 데이터시트, 핀배열, 회로
Digital Sound Processors for FPD TVs
32bit Audio DSP
BU9409FV
No.12083EAT03
General Description
It is a digital audio sound processor used for thin TV. Digital signal processor is Rohm original DSP only for TV
sound signal processing, and it’s cost performance is excellent. Digital inputs are two lines. Output is digital output
corresponding to 2.1ch or play of sub-voice L/R signal.
Features
DSP Part
Data width:
32bit (Data RAM)
Quickest machine cycle:40.7ns (512fs,fs=48kHz)
Multiplier:
32 x 24 56bit
Adder:
32 + 32 32bit
Data RAM:
256 x 32bit
Coefficient RAM:
128 x 24bit
Sampling frequency: fs=48kHz
Master clock:
512fs
24.576MHz,fs=48kHz
Input output I/F
2 stereo digital signal input port : 16/20/24bit (I2S,left-align,right-align)
2 stereo digital signal output port : 16/20/24bit (I2S,left-align,right-align), S/PDIF output
Sound signal processing function for TV
Prescaler, DC cut HPF, channel mixer, P2Volume(Perfect Pure Volume),BASS,MIDDLE,
TREBLE, pseudo stereo, surround, P2Bass, P2Treble, 7 band parametric equalizer,
master volume, L/R balance, postscaler, output clipper, subwoofer output processing
P2VolumeP2BassP2Treble are Rohm original sound effect functions.
Applications
Flat Panel TVs (LCD, Plasma)
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
1/54
2012.03 - Rev.A
Free Datasheet http://www.datasheet-pdf.com/




BU9409FV pdf, 반도체, 판매, 대치품
BU9409FV
Block diagram
Technical Note
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
CLK
SP
Conv.
DSP
I2S
IF Control
IF
I2C
IF
TEST
LDO15
PLLA
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
4/54
2012.03 - Rev.A
Free Datasheet http://www.datasheet-pdf.com/

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BU9409FV 전자부품, 판매, 대치품
BU9409FV
Technical Note
1.Command interface
I2C bus method is used in command interface with host CPU on BU9409FV.
In BU9409FV, not only writing but read-out is possible except for some registers.
Besides the slave address in BU9409FV, one byte select address can be Specified, written and readout.
The format of I2C bus slave mode is shown below.
MSB
LSB MSB
LSB MSB
S Slave Address
A Select Address
A Data
LSB
AP
S: Start condition
Slave Address:
Putting up the bit of read mode (H") or write mode (L") after slave address (7bit) set with ADDR,
the data of eight bits in total will be sent. (MSB first)
A: The acknowledge bit in each byte adds into the data when acknowledge is sent and received.
When data is correctly sent and received, "L" will be sent and received.
There was no acknowledge for "H".
Select Address: 1 byte select address is used in BU9409FV. (MSB first)
Data: Data-byte, data(MSB first)sent and received
P: Stop Condition
SDA
MSB 6
5
LSB
SCL
Start Condition
When SDA↓, SCL=”H”
Stop Condition
When SDA↑, SCL=”H”
1-1. Data writing
S Slave Address
ADDR=0
MSB
A6 A5
10
ADDR=1
MSB
A6 A5
10
A4
0
A4
0
A Select Address
A Data
AP
: From master to slave
: From slave to master
LSB
A3 A2 A1 A0 R/W
00000
LSB
A3 A2 A1 A0 R/W
00010
Setting of BU9409FV slave address
Terminal setting
Write-mode
ADDR
Slave-address
0 80h
1 82h
S Slave Address A Select Address
(example)
80h
20h
A Data
A Data
00h 00h
: From master to slave
A Data
AP
00h
: From slave to master
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
7/54
2012.03 - Rev.A
Free Datasheet http://www.datasheet-pdf.com/

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관련 데이터시트

부품번호상세설명 및 기능제조사
BU9409FV

32bit Audio DSP

ROHM Semiconductor
ROHM Semiconductor

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