AKD7712A 데이터 시트보기 (PDF) - Asahi Kasei Microdevices

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AKD7712A

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

Asahi Kasei Microdevices 

ASAHI KASEI

[AK7712A-VT]

„ Power Supply

Pin / Function

Pin No.

24, 32, 50,

70, 73

25, 31, 49,

69, 72

87, 97

86, 96

79, 99

10, 11, 74,

75

Pin name I/O

Function

DVDD

-

Digital power supply

DVSS

-

Digital ground

AVDD

AVSS

AVB

DVB

-

Analog power supply

-

Analog ground

-

Analog substrate power supply

-

Digital substrate power supply

„ External RAM Interface Signal

Pin No.

41∼48,

51∼59

40

39

38

61∼68

60

Pin name I/O

Function

A16∼A0

O Address output for external RAM

(A0:LSB justified, A16:MSB justified)

WE

O Write signal output

for external SRAM/ Pseudo-SRAM/ DRAM

RESCE

O RAS for external DRAM

/ Pseudo-SRAM-CE

CASRF

O CAS for external DRAM

/ Pseudo-SRAM refresh

IO0∼IO7

I/O Data input/output for external RAM

OE

O Output enable signal output

for external SRAM/ Pseudo-SRAM/ DRAM

0180-E-02

-7-

1997/12

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