BU9408KS2 datasheet(7/57 Pages) ROHM

Part #	BU9408KS2

Description	32bit Audio DSP with Built-in 4ch DAC and ASRC

Download	57 Pages

Scroll/Zoom	100%

Manufacturer	ROHM [Rohm]

Direct Link	http://www.rohm.com

Logo

7 / 57 page

Technical Note

7/53

BU9408KS2

www.rohm.com

2012.03 - Rev.A

1.

Command Interface

BU9408KS2 uses I

2C-bus system for the command interface with a host CPU.

The register of BU9408KS2 has Write-mode and Read-mode.

BU9408KS2 specifies a slave address and 1 byte of selection address, and it performs writing and read-out.

The slave mode format of I

2C bus is shown below.

MSB

LSB

MSB

LSB

MSB

LSB

S

Slave Address

A

Select Address

A

Data

A

P

S : Start condition

Slave Address : After the slave address (7 bits) set up by I2CADR, bit of a read-mode (H") and a write-mode (L") is attached,

and a total of 8-bit data is sent. (MSB first)

A: Acknowledge An acknowledge bit is added on to each bit of data transmitted.

When data transmission is being done correctly, “L” is transmitted.

“H” transmission means there was no acknowledge.

Select Address: BU9408KS2 uses a 1-byte select address.

(MSB first)

Data:

Data byte, transmitted data (MSB first)

P:

Stop condition

1

1--1

1..

D

Da

atta

a W

Wrriitte

e--IIn

n

S

Slave Address

A

Select Address

A

Data

A

P

: Master to Slave

: Slave to Master

ADDR=0

MSB

LSB

A6

A5

A4

A3

A2

A1

A0

R/W

1

0

ADDR=1

MSB

LSB

A6

A5

A4

A3

A2

A1

A0

R/W

1

0

1

0

S

Slave Address

A

Select Address

A

Data

A

Data

A

Data

A

P

（例）

80h

20h

00h

: Master to Slave

: Slave to Master

SDA

SCL

MSB

6

5

LSB

Start Condition

↓

When SDA

, SCL=”H”

Stop Condition

↑

When SDA

, SCL=”H”

Setting of BU9408KS2 slave address

Terminal setting

Write-mode

Slave-address

ADDR

0

80h

1

82h

Similar Part No. - BU9408KS2

Manufacturer	Part #	Datasheet	Description
Rohm	BU9406KS2	886Kb / 38P	28bit Audio DSP with Built-in 2ch ADC, 6ch DAC and ASRC
	BU9409FV	1Mb / 58P	32bit Audio DSP
	BU9409FV-E2	1Mb / 58P	32bit Audio DSP
	BU9409FV	1Mb / 58P	32bit Audio DSP

More results

Similar Description - BU9408KS2

Manufacturer	Part #	Datasheet	Description
Rohm	BD9406KS2	886Kb / 38P	28bit Audio DSP with Built-in 2ch ADC, 6ch DAC and ASRC
Asahi Kasei Microsystem...	AK7722	457Kb / 28P	24bit 4ch ADC 24bit 4ch DAC with Audio DSP
Rohm	BU9414FV	1Mb / 61P	32bit Audio DSP
Rohm	BU9409FV	1Mb / 58P	32bit Audio DSP
Asahi Kasei Microsystem...	AK7740ET	281Kb / 48P	24bit 2ch ADC 24bit 4ch DAC with Audio DSP
	AK7742	346Kb / 16P	24bit 2ch ADC 24bit 4ch DAC with Audio DSP
	AK7744VT	444Kb / 50P	24bit 3ch ADC 24bit 4ch DAC with Audio DSP
	AK7757	433Kb / 24P	Audio DSP with 24bit 3ch ADC 4ch DAC MIC Amp
	AK7712A-VT	968Kb / 87P	Built-in 20-bit ADC/DAC Sophisticated Audio DSP
	AK7757VQ	656Kb / 24P	24bit 3ch ADC 4ch DAC Mic Amp ?낁뵷 Audio DSP

More results

BU9408KS2 Datasheet(PDF) 7 Page - Rohm

BU9408KS2 Datasheet(HTML) 7 Page - Rohm

Similar Part No. - BU9408KS2

Similar Description - BU9408KS2

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57

Datasheet Download

Link URL