AK7752 Datasheet, PDF (4/23 Pages) Asahi Kasei Microsystems – Audio/Hands Free DSP with Stereo CODEC

[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