AK7780 查看數據表（PDF） - Asahi Kasei Microdevices
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AK7780 Datasheet PDF : 28 Pages
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[AK7780]
No Pin Name I/O
36 BITCLK_I I Serial bit clock input pin
Function
37 LRCLK_I I LR channel select clock input pin.
Classification
System Clock
38 DVDD18 - Power supply pin for digital section 1.8V(typ)
39
DVSS
- Ground pin for digital section 0.0V
Digital power
supply
Reset pin ( for initialization)
40 INIT_RESET I Use for initialization. When changing CKM[2:0], XTI or BITCLK_I input
frequency, this reset pin must be used.
Clock reset pin
41 P_CKRST I
When changing CKM[2:0] and XTI or BITCLK_I input frequency without
using INIT_RESET, pin control is necessary. The control register
R_CKRST_N can also rest the clock.
ADC Reset pin
Reset
42 P_ADRST I
The control register R_ADRST_N can also reset the ADC.
P_ADRST = “L” and P_DSPRST = “L” state causes a system reset
(S_RESET).
DSP Reset pin
43 P_DSPRST I
The control register R_DSPRST_N can also rest the DSP.
P_ADRST = “L” and P_DSPRST = “L” state causes a system reset
(S_RESET).
44
RQ
I
I2CSEL= “L”
Microcomputer interface write request pin.
After initial reset, if the microcomputer interface
is
not
used,
leave
RQ
=
“H”
Microcomputer
Interface.
CAD1
I I2CSEL=”H” I2C Bus address setting pin 1
I2C
45
SI
I
Microcomputer interface serial data input
pin.
When SI is not used, leave SI = “L”.
and
serial
data
output
controlMicrocomputer
Interface.
CAD0
I I2CSEL= “H” I2C Bus address pin 0
I2C
I2CSEL= “L”
46
SCLK
I Microcomputer interface serial data clock pin.
When SCLK is not used, leave SCLK= “H”
SCL
I I2CSEL= “H” I2C bus data clock pin
Microcomputer
Interface.
I2C
47 DVDD18 - Power supply pin for digital section 1.8V(typ)
48
DVSS
- Ground pin for digital section 0.0V
49
DVDD
- Power supply pin for digital section 3.3V(typ)
50
SO
O
Serial data output pin for microcomputer interfaces.
When RQ = “H”, SO = Hi-Z
Digital power
supply
Microcomputer
Interface.
MS0581-E-00-PB
-8-
2007/09
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