AK7714VT View Datasheet(PDF) - Asahi Kasei Microdevices

Part Name

Description

Manufacturer

AK7714VT

20-Bit Audio Codec with DSP and Delay RAM

Asahi Kasei Microdevices 

[ASAHI KASEI]

[AK7714]

Pin No.

42,43

Pin name

DVSS

I/O

Digital Ground

-

Function

Classification

Power supply

44,45

DVDD

+5 V Digital power supply

-

Microcomputer interface Write Request pin

47

WRQ

I

Microcomputer

interface

Microcomputer interface chip selector input pin (Pulldown)

48

CS

I Also used for SO control in addition to chip selection.

When only one AK7714 is used and SO is not used, CS="L" may be used

unchanged. SO and RDY will be Hi-z when CS ="H".

External condition jump pin (Pulldown)

Program control

49

JX

I

Microcomputer interface serial data input pin (Pulldown)

53

SI

I

Microcomputer

interface

Microcomputer interface serial data clock input pin

55

SCLK

I

Clock output control pin (Pulldown)

Control

56

CTRL0

I Use of CTRL0 and CTRL1 allows the CLKO output and LRCLK/BITCLK

outputs

in the master mode to be fixed to “L” or “H”. See Function Description.

CTRL1

CTRL0

CLKO

LRCLK

BITCLK

0

0

Output

Output

Output

1

0

“L”

Output

Output

1

1

“L”

“H”(“L”)

“L”

Reset pin

Reset

57 DSP RESET I Normally, DSP RESET and CODEC RESET are simultaneously controlled for

use.

58 CODEC RESET I

Reset pin (for initialization)

59 INIT RESET I Used to input “L” to initialize the AK7714 at power-on.

M0018-E-00

-7-

‘98/07

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