ak7712a-vt AKM Semiconductor, Inc., ak7712a-vt Datasheet - Page 70

• Manufacturer Part Number: ak7712a-vt
• Description: Built-in 20-bit Adc/dac Sophisticated Audio Dsp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
0180-E-02
* Other codes except for this table are reserved. Do not use these reserved codes.
note 1) Do not change the reserve/ test as it may be used for test. It may become the cause of irregular action.
Bit name
C23
C22
C21
C20
C19
C18
C17
C16
C15
C14
C13
C12
C11
C10
C9
C8
C7
C6
C5
C4
C3
C2
C1
C0
External RAM data length selection
External RAM selection
Data reset function selection after reset
Addressing method selection of DRAM
BCLK selection
Effective only slave mode
SDIN1 interface selection
SDOUT1 interface selection
SDIN2 interface selection
SDOUT2 interface selection
Reserve/ Test
Reserve/ Test
ADC HPF selection
Pink Noise Generation
Reserve/ Test
Master clock selection
Reserve/ Test
Reserve/ Test
(0,0):
(1,0):
(1,1):
(0,1):
[ Table 1 ]
384fs
512
576
256
XTI
(C9,C8) =
(C17,C16) =
256
512
576
384fs
(C22,C21,C20) =
DSP
(C15,C14) =
(C13,C12) =
(C3,C2) =
fs
- 70 -
48/44.1/32kHz
48/44.1/32
32
32
Function
1: 4-bit, 0: 8-bit(default value)
(0,0,0): SRAM (default value)
(0,1,0): Pseudo SRAM(static column mode)
(0,1,1): Pseudo SRAM(normal mode)
(1,0,0): DRAM 256K
(1,0,1): DRAM 1M(use as 512K)
1: not use, 0: use(default value)
1: Linear addressing
(0,1): 32fs
(1,0): 48fs
(0,1): MSB justified 24-bit
(1,0): LSB justified 16-bit
(1,1): LSB justified 24-bit
(0,1): MSB justified 24-bit
(1,0): LSB justified 16-bit
(0,0): (default value)
1: MSB justified 16-bit
0: (default value)
1: MSB justified 16-bit
0: (default value)
0: (defaul value)
1: not use, 0: use(default value)
0: (default value)
0: (default value)
(0,1): (default value)
0: Ring addressing (default value)
(0,0): 64fs(default value)
(0,0): MSB justified 16-bit
(0,0): MSB justified 16-bit
0: MSB justified 20-bit
0: MSB justified 20-bit
(0,0): (default value)
0: (default value)
0: (default value)
Max clock
18.432MHz
12.288MHz
16.384MHz
18.432MHz
1: use
32/48/64fs
32/48/64fs
48/64fs
48/64fs
32/48/64fs
32/48/64fs
48/64fs
48/64fs
48/64fs
48/64fs
64fs
[AK7712A-VT]
note 1)
note 1)
note 1)
note 1)
note 1)
1997/12