參數(shù)資料
型號(hào)： AK4366
廠商： Asahi Kasei Microsystems Co.,Ltd
英文描述： Low Power 24-Bit 2ch DAC with HP-AMP
中文描述： 低功耗24位2通道DAC，具有惠普腺苷
文件頁(yè)數(shù)： 23/31頁(yè)
文件大小： 266K
代理商： AK4366
ASAHI KASEI
AKM CONFIDENTIAL
[AK4366]
REV 0.6
2003/3
- 23 -
n
Mode Control Interface
Some function of AK4366 can be controlled by both pins (parallel control mode) and register (serial control mode) shown
in Table 11. The serial control interface is enabled by the P/S pin = “L”. 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, fixed to “01”),
Read/Write (1bit; fixed to “1”, Write only), Register Address (MSB first, 5bits) and Control Data (MSB first, 8bits).
AK4367 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).
Function
Parallel mode
De-emphasis
44.1kHz
SMUTE
X
Audio I/F Format
I2S, Left justified
Digital Attenuator
X
Bass Boost
X
Power Management
X
Default State at PDN= “L”
→
“H”
Power up
Table 11. Function list (O: available, X: not available)
PDN= “L” resets the registers to their default values. When the state of P/S pin is changed, AK4366 should be reset by
PDN= “L”.
Serial mode
32kHz/44.1kHz/48kHz
O
I2S, Left Justified, Right justified
O
O
O
Power down
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:
R/W:
A4-A0: Register Address
D7-D0: Control Data
Chip Address (Fixed to “01”)
READ/WRITE (Fixed to “1”, Write only)
Figure 18. 3-wire Serial Control I/F Timing
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