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參數(shù)資料
| 型號(hào)： | AK4385 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | 108dB 192kHz 24-Bit 2ch ツヒ DAC |
| 中文描述： | 一〇八分貝192kHz的24位2通道ツヒ數(shù)模轉(zhuǎn)換器 |
| 文件頁數(shù)： | 16/21頁 |
| 文件大?。?/td> | 285K |
| 代理商： | AK4385 |
ASAHI KASEI
[AK4385]
MS0246-E-00
2003/07
- 16 -
Mode Control Interface
Internal registers may be written by 3-wire μP interface pins, CSN, CCLK and CDTI. The data on this interface consists
of Chip Address (2bits, C1/0; fixed to “01”), Read/Write (1bit; fixed to “1”, Write only), Register Address (MSB first,
5bits) and Control Data (MSB first, 8bits). AK4385 latches the data on the rising edge of CCLK, so data should clocked
in on the falling edge. The writing of data becomes valid by CSN “
↑
”. The clock speed of CCLK is 5MHz (max).
PDN = “L” resets the registers to their default values. The internal timing circuit is reset by RSTN bit, but the registers are
not initialized.
CDTI
CCLK
CSN
C1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
D4
D5
D6
D7
A1
A2
A3
A4
R/W
C0
A0
D0
D1
D2
D3
C1-C0: Chip Address (Fixed to “01”)
R/W: READ/WRITE (Fixed to “1”, Write only)
A4-A0: Register Address
D7-D0: Control Data
Figure 8. Control I/F Timing
*AK4385 does not support the read command and chip address. C1/0 and R/W are fixed to “011”
*When the AK4385 is in the power down mode (PDN = “L”) or the MCLK is not provided, writing into the control
register is inhibited.
Register Map
Addr
Register Name
D7
D6
D5
D4
D3
D2
D1
D0
00H
01H
02H
03H
04H
Notes:
Control 1
Control 2
Control 3
Lch ATT
Rch ATT
ACKS
DZFE
0
ATT7
ATT7
0
0
DIF2
DFS1
0
ATT4
ATT4
DIF1
DFS0
0
ATT3
ATT3
DIF0
DEM1
DZFB
ATT2
ATT2
PW
DEM0
0
ATT1
ATT1
RSTN
SMUTE
0
ATT0
ATT0
DZFM
0
ATT6
ATT6
SLOW
0
ATT5
ATT5
For addresses from 05H to 1FH, data must not be written.
When PDN pin goes “L”, the registers are initialized to their default values.
When RSTN bit goes “0”, the only internal timing is reset and the registers are not initialized to their default
values.
All data can be written to the register even if PW or RSTN bit is “0”.
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| AK4385_06 | 制造商:AKM 制造商全稱:AKM 功能描述:108dB 192kHz 24-Bit 2ch ツヒ DAC |
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| AK4385ETP-E2 | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述:-20 C TO +85 C VERSION |
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