AK7734 데이터 시트보기 (PDF) - Asahi Kasei Microdevices
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AK7734 Datasheet PDF : 24 Pages
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[AK7734]
No.
Name
23 BITCLKO
24 CLKO
25 STO
SO
26
RDY
27 LRCLKI2
28 BITCLKI2
JX2
29
SDIN4
30 RQN
CAD1
31 SI
CAD0
32 SDA
33 SCLK
SCL
34 DVDD
35 VSS3
36 AVDRV
37 SRCLFLT
38 VSS4
39 DVDD
40 CKM[3]
41 SETSRC
42 TESTI2
43 AINR
I/O
Function
Classification
O Serial Bit Clock Output Pin
System Clock
Outputs “L” during initial reset in master mode.
Output
O Clock Output Pin
Outputs “L” during initial reset.
Clock Output
O
Status Output Pin
Outputs “H” during initial reset.
Status
O
Serial Data Output Pin for Microprocessor Interface
Outputs “L” during initial reset.
Microprocessor
Interface
O
Data Write Ready Output Pin for Microprocessor Interface
Outputs RDY when SELRDY bit = “1”
Microprocessor
Interface
I LR Channel Select Clock Pin2 (for SRC)
System Clock
Input
I Serial Bit Clock Input Pin2 (for SRC)
System Clock
Input
I Conditional Jump Pin2
A conditional jump pin (JX2) is available by setting control register (JX2E) Conditional Input
to “1”.
I
Serial Data Input Pin4
Normally used for SRC serial data input pin.
Digital Input
Microprocessor Interface Write Request Pin (I2CSEL pin = “L”)
I When initial reset state and Microcomputer interface are not in use, leave
RQN pin= “H”.
I I2C Bus Address Setting Pin 1 (I2CSEL pin = “H”)
Microprocessor
Interface
I2C
I Serial Data Input Pin for Microprocessor Interface (I2CSEL pin = “L”)
Microprocessor
When SI is not used, tie the SI pin = “L”.
I I2C Bus Address Setting Pin 0 (I2CSEL pin = “H”)
Interface
I2C
O I2CSEL pin = “L”
Leave this pin Open. SDA outputs “L”.
I/O I2C Bus Data Clock Pin (I2CSEL pin = “H”)
Outputs “Hi-z” during initial reset.
Open
I2C
I Serial Data Clock Pin for Microprocessor Interface (I2CSEL pin = “L”)
Microprocessor
When SCLK is not used, tie the SCLK pin = “H”.
I I2C Bus Data Clock Pin (I2CSEL pin = “H”)
Interface
I2C
- Power Supply for Digital Section 3.0V ~ 3.6V
Digital
Power Supply
- Ground Pin 0V
Power Supply
O AVDRV Pin
Connect a 1μF capacitor between this pin and No.35 pin (VSS3). No
external circuits should be connected to this pin. This pin outputs “L”
Analog Output
during initial reset.
O SRC, PLL RC component connect pin
Connect a 1μF capacitor between this pin and VSS4. This pin outputs “L” Analog Output
during initial reset.
- Ground Pin 0V
Power Supply
- Power Supply for Digital Section 3.0V ~ 3.6V
Digital
Power Supply
I Clock Mode Select Pin3
Mode Select
I PLL Reference Clock Select Pin for SRC
Mode Select
I Test2 Pin (Internal pull-down)
This pin must be connected to VSS.
Test
I ADC Single-ended Input Pin for Rch
Analog Input
MS1033-E-02-PB
7
2010/01
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