AK7752 데이터 시트보기 (PDF) - Asahi Kasei Microdevices

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AK7752

Audio/Hands Free DSP with Stereo CODEC

Asahi Kasei Microdevices 

[AK7752]

PIN/FUNCTION

No. Pin Name I/O

Function

Classification

EEPROM Chip Select Pin

1 EECS_N O Connect to the C_N pin of the AK6514C (EEPROM).The output is Hi-Z when EEPIF

EESEL pin= “L”.

EEPROM Serial Data Receive Pin ( Internal pull-down )

2 EESO I Connect to the SO pin of the AK6514C (EEPROM).

Connect to DVSS or leave open when a EEPROM is not use.

EEPROM Serial Data Output Clock Pin

3 EECK O Connect to the SCK pin of the AK6514C (EEPROM). The output is Hi-Z when

EESEL pin = “L”.

EEPROM Serial Data Output Pin

4 EESI O Connect to the SI pin of the AK6514C. The output is Hi-Z when EESEL pin=

“L”.

5

BVSS

-

Silicon Substrate Potential 0V

Connect to AVSS.

Analog Power

Supply

6 DVSS - Ground Pin for Digital Section 0.0V

Digital

7 DVDD - Power Supply Pin for Digital Section (3.3V typical)

Power Supply

8

RQ_N

I

Microprocessor Interface Write Request Pin (I2CSEL pin = “L”)

When initial reset state and Microcomputer interface are not in use, leave RQ_N

pin= “H”.

Microprocessor

Interface.

CAD1 I I2C Bus Address Setting Pin 1 (I2CSEL pin = “H”)

I2C

9 RDY O Data Write Ready Output Pin for Microprocessor Interface

Microprocessor

Interface

10

SO

O

Serial Data Output Pin for Microprocessor Interface

When RQ_N pin = “H”, SO pin= Hi-Z

11

SI

I

Serial Data Input Pin for Microprocessor Interface (I2CSEL pin = “L”)

When SI is not used, tie the SI pin = “L”.

CAD0 I I2CSEL= “H” I2C Bus Address Pin 0

I2C

12 DVSS - Ground Pin for Digital Section 0.0V

Digital

13 DVDD - Power Supply Pin for Digital Section (3.3V typical)

14 SCLK

SCL

I

Serial Data Clock Pin for Microprocessor Interface (I2CSEL pin = “L”)

When SCLK is not used, tie the SCLK pin = “H”.

I I2C Bus Data Clock Pin (I2CSEL pin = “H”)

15

SDA

I/O

Test Pin (I2CSEL pin = “L”)

Leave open. SDA goes “L”.

SDA I/O I2C Bus Data Clock Pin (I2CSEL pin = “H”)

16

TESTO1

O

Test Output Pin

Leave open. Normally TESTO1 goes “L”.

Power Supply

Microprocessor

Interface

I2C

TEST

I2C

TEST

17 STO O Status Output Pin

Status

MS0578-E-01-PB

-4-

2007/09

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