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AK2331 参数 Datasheet PDF下载

AK2331图片预览
型号: AK2331
PDF下载: 下载PDF文件 查看货源
内容描述: DAC类型的8位4通道电子音量 [DAC Type 8-bit 4-channel Electronic Volume]
分类和应用: 消费电路商用集成电路电子
文件页数/大小: 17 页 / 257 K
品牌: AKM [ ASAHI KASEI MICROSYSTEMS ]
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[AK2331]  
D0  
2.2) VREF registers  
Address  
Data  
A3  
1
A2  
0
A1  
0
A0  
0
D7  
D6  
D5  
D4  
D3  
D2  
D1  
DA3REF1  
DA3REF0  
DA2REF1  
DA2REF0  
DA1REF1  
DA1REF0  
DA0REF1  
DA0REF0  
0
0
0
0
0
0
0
0
Initial value  
DA3REF1  
DA3REF0  
to  
to  
Remarks  
DAC reference voltage  
DA0REF1  
DA0REF0  
0
0
1
1
0
1
0
1
VSS (internal)  
AVDD (internal)  
AVDD/2 (internal)  
VREF (external)  
2.3) AVDD/2 register  
Address  
Data  
A3  
1
A2  
0
A1  
1
A0  
0
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
AVDD2O3  
AVDD2O2  
AVDD2O1  
AVDD2O0  
0
0
0
0
0
0
0
0
Initial value  
Function  
Data  
Item  
Remarks  
0
1
Bypasses the DAC and  
outputs the AVDD/2 level  
through buffer.  
AVDD2O3  
to  
AVDD2O0  
Internal AVDD/2  
output  
DAC output  
Note Internal generated AVDD/2 level can be output to VOUT0 to VOUT3 pins by setting this register.  
2.4) BUFON register  
Address  
A2 A1  
Data  
A3  
1
A0  
1
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
BUFON3  
BUFON2  
BUFON1  
BUFON0  
0
1
0
0
0
0
0
0
0
0
Initial value  
Function  
Data  
Item  
Remarks  
0
1
BUFON3  
to  
BUFON0  
DAC buffer  
operation  
Powers down buffer and  
outputs Hi-Z.  
Buffer output  
2.5) Software reset register  
Address  
Data  
D3  
A3  
1
A2  
1
A1  
0
A0  
0
D7  
0
D6  
0
D5  
0
D4  
D2  
0
D1  
0
D0  
0
SRST[7:0]  
Initial value  
0
0
When the SRST[7:0] register is set to 0xAA (10101010), a software reset is performed.  
This setting initializes all registers.  
Upon completion of a software reset, the register is set to 0.  
MS0903-E-00  
2008/03  
- 13 -