AK7712A-VT datasheet(5/87 Pages) AKM

Part #	AK7712A-VT

Description	Built-in 20-bit ADC/DAC Sophisticated Audio DSP

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Manufacturer	AKM [Asahi Kasei Microsystems]

Direct Link	http://www.akm.com

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5 / 87 page

ASAHI KASEI

[AK7712A-VT]

0180-E-02

1997/12

- 5 -

AK7712A DSP unit Block Diagram

Data

Address

CP0,1

DP0,1

D0

a7

AD0

a16

CRAM

256

× 16

DRAM

128

× 24

Delay Data

16-bit

Ext RAM

Control

OFRAM

40

× 16

CBUS (16-bit)

DBUS (24-bit)

MPX16

MPX24

Microcomputer Serial

Micom I/F

Control

Interface

D

E

C

PRAM

384

× 32

X

Y

Multiply

16

× 24→40

24-bit

40-bit

PC

Stack:1Level

34-bit

MUL

DBUS

SHIFT

TMP 8

× 24-bit

34-bit

SDIN1 (24/16-bit)

2

× 24/16-bit

MSB/LSB justified Serial In

SDIN2 (20/16-bit)

2

× 20/16-bit

MSB justified Serial In (note 1)

A

B

ALU

34-bit

Overflow Margin:4bit

SDOUT1 (24/16-bit)

2

× 24/16-bit

MSB/LSB justified Serial Out

DR0

a3

SDOUT2 (20/16-bit)

2

× 20/16-bit

MSB justified Serial Out (note 2)

24-bit

SDOUT3 (20/16-bit)

2

× 20/16-bi

MSB justified Serial Out (note 3)

Overflow Data

Generator

note 1: Normally it's connected to built-in ADC

2: Normally it's connected to built-in DAC1

Peak Detector

3: Normally it's connected to built-in DAC2

Division

16

÷ 16→16

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AK7712A-VT Datasheet(PDF) 5 Page - Asahi Kasei Microsystems

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