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| 型號： | AD5235BRUZ25-RL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 11/32頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DGTL POT DUAL 1024POS 16TSSOP |
| 產(chǎn)品變化通告： | Metal Edit Change 03/Feb/2012 |
| 標準包裝： | 1,000 |
| 接片： | 1024 |
| 電阻（歐姆）： | 25k |
| 電路數(shù)： | 2 |
| 溫度系數(shù)： | 標準值 35 ppm/°C |
| 存儲器類型： | 非易失 |
| 接口： | 4 線 SPI（芯片選擇） |
| 電源電壓： | 3 V ~ 5.5 V，±2.25 V ~ 2.75 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-TSSOP |
| 包裝： | 帶卷 (TR) |
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Data Sheet
AD5235
Rev. F | Page 19 of 32
In Table 6, command bits are C0 to C3, address bits are A0 to A3, Data Bit D0 to Data Bit D9 are applicable to RDAC, and D0 to D15 are
applicable to EEMEM.
Table 6. 24-Bit Serial Data-Word
MSB
Command Byte 0
Data Byte 1
Data Byte 0
LSB
RDAC
C3
C2
C1
C0
0
A0
X
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
EEMEM
C3
C2
C1
C0
A3
A2
A1
A0
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Command instruction codes are defined in Table 7.
Table 7. Command Operation Truth Table1, 2, 3
Command
Number
Command Byte 0
Data Byte 1
Data Byte 0
Operation
B23
B16
B15
B8
B7
B0
C3
C2
C1
C0
A3
A2
A1
A0
X
…
D9
D8
D7
…
D0
0
X
…
X
…
X
NOP. Do nothing. See
1
0
1
0
A0
X
…
X
…
X
Restore EEMEM (A0) contents to RDAC (A0)
register. See
2
0
1
0
A0
X
…
X
…
X
Store wiper setting. Store RDAC (A0) setting to
EEMEM (A0). See
0
1
A3
A2
A1
A0
D15
…
D8
D7
…
D0
Store contents of Serial Register Data Byte 0
and Serial Register Data Bytes 1 (total 16 bits)
to EEMEM (ADDR). See
0
1
0
A0
X
…
X
…
X
Decrement by 6 dB. Right-shift contents of
RDAC (A0) register, stop at all 0s.
0
1
0
1
X
…
X
…
X
Decrement all by 6 dB. Right-shift contents of
all RDAC registers, stop at all 0s.
0
1
0
A0
X
…
X
…
X
Decrement contents of RDAC (A0) by 1,
stop at all 0s.
0
1
X
…
X
…
X
Decrement contents of all RDAC registers by 1,
stop at all 0s.
8
1
0
X
…
X
…
X
Reset. Refresh all RDACs with their corresponding
EEMEM previously stored values.
9
1
0
1
A3
A2
A1
A0
X
…
X
…
X
Read contents of EEMEM (ADDR) from
SDO output in the next frame. See
10
1
0
1
0
A0
X
…
X
…
X
Read RDAC wiper setting from SDO output
in the next frame. See
11
1
0
1
0
A0
X
…
D9
D8
D7
…
D0
Write contents of Serial Register Data Byte 0
and Serial Register Data Byte 1 (total 10 bits)
to RDAC (A0). See
1
0
A0
X
…
X
…
X
Increment by 6 dB: Left-shift contents of RDAC
(A0), stop at all 1s. See
1
0
1
X
…
X
…
X
Increment all by 6 dB. Left-shift contents of
all RDAC registers, stop at all 1s.
1
0
A0
X
…
X
…
X
Increment contents of RDAC (A0) by 1,
stop at all 1s. See
155
1
X
…
X
…
X
Increment contents of all RDAC registers by 1,
stop at all 1s.
1
The SDO output shifts out the last 24 bits of data clocked into the serial register for daisy-chain operation. Exception: for any instruction following Instruction 9 or
Instruction 10, the selected internal register data is present in Data Byte 0 and Data Byte 1. The instructions following Instruction 9 and Instruction 10 must also be a
full 24-bit data-word to completely clock out the contents of the serial register.
2
The RDAC register is a volatile scratchpad register that is refreshed at power-on from the corresponding nonvolatile EEMEM register.
3
Execution of these operations takes place when the CS strobe returns to logic high.
4
Instruction 3 writes two data bytes (16 bits of data) to EEMEM. In the case of Address 0 and Address 1, only the last 10 bits are valid for wiper position setting.
5
The increment, decrement, and shift instructions ignore the contents of the shift register, Data Byte 0 and Data Byte 1.
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| AD5235-EP | 制造商:AD 制造商全稱:Analog Devices 功能描述:Nonvolatile Memory, Dual 1024-Position Digital Potentiometer |
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| AD5235EVAL25 | 制造商:Analog Devices 功能描述:Evaluation Board For 1024-Position Digital Potentiometer 制造商:Analog Devices 功能描述:DUAL 10BIT SPI EVAL BOARD - Bulk |
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