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參數(shù)資料
| 型號： | DS1802 |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | Dual Audio Taper Potentiometer with Push Button Control(帶按鈕控制的雙路音頻抽頭電位器) |
| 中文描述： | DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 65 POSITIONS, PDIP20 |
| 封裝： | 0.300 INCH, DIP-20 |
| 文件頁數(shù)： | 2/15頁 |
| 文件大?。?/td> | 97K |
| 代理商： | DS1802 |
RST
L0
H0
L1
H1
65–TO–1 MULTIPLEXER
65–TO–1 MULTIPLEXER
COMMAND/
CUNIT
(UC1) VU
CLK
D
W0
W1
POTENTIOMETER–0
POTENTIOMETER–1
(DC1) VD
(UC0) B0
(DC0) B1
MODE SELECT
C
OUT
16–BIT I/O SHIFT REGISTER
b0
b15
POS 64
POS 0
POS 64
POS 0
DS1802
022698 2/15
OPERATION
The DS1802 provides two 65–position potentiometers
per package; each having a logarithmic resistive charac-
teristic as shown in Table 1. The DS1802 can be con-
trolled either digitally, or mechanically using a 3–wire
serial interface or contact closure input, respectively.
The push–button interface allows for a simple mechani-
cal control method for incrementing or decrementing
wiper position. The 3–wire serial nterface s designed for
CPU controlled applications and allows the potentiome-
ter’s exact wiper position to be read or written. Addition-
ally, the DS1802 can be daisy chained for multi–device
environments.
Figure 1 presents a block diagram of the DS1802. As
shown, the inputs from the 3–wire serial interface and
contact closure inputs drive a command/control unit.
The command/control unit interprets these inputs for
control of the two potentiometers.
The MODE input is used for contact closure operation.
This input allows the user to choose between indepen-
dent mode control and stereo mode control. The MODE
input is discussed in detail under the contact closure
interface control.
On power–up the serial port is stable and active within 10
microseconds. The contact closure control interface
inputs are active after 50 ms. The wiper position on pow-
er–up will be at position 63, the ow end of the potentiome-
ter. Position 64 is the mute level.
RESISTANCE CHARACTERISTICS
Table 1
POSITION
OUTPUT LEVEL (dB)
0
1
2
3
4
5
63
0
–1
–2
–3
–4
–5
–63
< –90
64 (Mute)
DS1802 BLOCK DIAGRAM
Figure 1
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| DS1806 | Digital Sextet Potentiometer(數(shù)字六位電位器) |
| DS1807 | Addressable Dual Audio Taper Potentiometer(可尋址雙路音頻抽頭電位器) |
| DS1809 | Nonvolatile Digitally Controlled Potentiometer(非易失性數(shù)字電位器) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS1802+ | 功能描述:數(shù)字電位計 IC Dual Audio Taper Potentiometer RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| DS1802E | 功能描述:數(shù)字電位計 IC RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| DS1802E/T&R | 制造商:Maxim Integrated Products 功能描述:DUAL AUDIO TAPER W/PB TSSOP T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC POT DL AUDIO TAP W/PB 20TSSOP |
| DS1802E/T&R | 功能描述:數(shù)字電位計 IC RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| DS1802E+ | 功能描述:數(shù)字電位計 IC Dual Audio Taper Potentiometer RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
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