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参数资料
型号： AD5735ACPZ-REEL7
厂商： Analog Devices Inc
文件页数： 26/48页
文件大小： 0K
描述： IC DAC QUAD VOLT CUR 64LFCSP
标准包装： 750
设置时间： 18µs
位数： 12
数据接口： DSP，MICROWIRE?，QSPI?，串行，SPI?
转换器数目： 4
电压电源： 模拟和数字，双 ±
工作温度： -40°C ~ 105°C
安装类型： 表面贴装
封装/外壳： 64-VFQFN 裸露焊盘，CSP
供应商设备封装： 64-LFCSP-VQ（9x9）
包装： 带卷 (TR)
输出数目和类型： 4 电流，4 电压
采样率（每秒）： *
AD5735
Data Sheet
Rev. C | Page 32 of 48
DATA REGISTERS
The input shift register is 24 bits wide. When PEC is enabled,
the input shift register is 32 bits wide, with the last eight bits
corresponding to the PEC code (see the Packet Error Checking
section for more information about PEC). When writing to a
data register, the format shown in Table 11 must be used.
DAC Data Register
When writing to a DAC data register, Bit D15 to Bit D4 are the
DAC data bits. Table 13 shows the register format, and Table 12
describes the functions of Bit D23 to Bit D16.
Table 11. Input Shift Register for a Write Operation to a Data Register
MSB
LSB
D23
D22
D21
D20
D19
D18
D17
D16
D15 to D0
R/W
DUT_AD1
DUT_AD0
DREG2
DREG1
DREG0
DAC_AD1
DAC_AD0
Data
Table 12. Descriptions of Data Register Bits[D23:D16]
Bit Name
Description
R/W
This bit indicates whether the addressed register is written to or read from.
0 = write to the addressed register.
1 = read from the addressed register.
DUT_AD1, DUT_AD0
Used in association with the external pins AD1 and AD0, these bits determine which AD5735 device is being
addressed by the system controller. It is not recommended to tie both AD1 and AD0 low when using PEC, see
the Packet Error Checking section.
DUT_AD1
DUT_AD0
Part Addressed
0
Pin AD1 = 0, Pin AD0 = 0
0
1
Pin AD1 = 0, Pin AD0 = 1
1
0
Pin AD1 = 1, Pin AD0 = 0
1
Pin AD1 = 1, Pin AD0 = 1
DREG2, DREG1, DREG0
These bits select the register to be written to. If a control register is selected (DREG[2:0] = 111), the CREG bits in
the control register select the specific control register to be written to (see Table 20).
DREG2
DREG1
DREG0
Function
0
Write to DAC data register (one DAC channel)
0
1
Reserved
0
1
0
Write to gain register (one DAC channel)
0
1
Write to gain registers (all DAC channels)
1
0
Write to offset register (one DAC channel)
1
0
1
Write to offset registers (all DAC channels)
1
0
Write to clear code register (one DAC channel)
1
Write to a control register
DAC_AD1, DAC_AD0
These bits are used to specify the DAC channel. If a write to the part does not apply to a specific DAC channel,
these bits are don’t care bits.
DAC_AD1
DAC_AD0
DAC Channel
0
DAC A
0
1
DAC B
1
0
DAC C
1
DAC D
Table 13. Programming the DAC Data Register
D23
D22
D21
D20
D19
D18
D17
D16
D15 to D4
D3 to D0
R/W
DUT_AD1
DUT_AD0
0
DAC_AD1
DAC_AD0
DAC data
X1
1 X = don’t care.
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