- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄385272 > DS1802 (DALLAS SEMICONDUCTOR) Dual Audio Taper Potentiometer with Push Button Control(帶按鈕控制的雙路音頻抽頭電位器) PDF資料下載
參數(shù)資料
| 型號(hào)： | DS1802 |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類(lèi)： | 數(shù)字電位計(jì) |
| 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(yè)數(shù)： | 7/15頁(yè) |
| 文件大?。?/td> | 97K |
| 代理商： | DS1802 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)當(dāng)前第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)
DS1802
022698 7/15
Dual Contact Closure
In dual push–button mode, each direction s controlled by
the respective control nputs. No wait states are required
to change wiper direction, balance, or volume in dual
push–button mode. Additionally, in dual push–button
mode as the wiper position reaches the end of the poten-
tiometer, the direction of wiper movement will not
change. Wiper position will remain at the potentiome-
ters’ end until an opposite direction input is given.
All contact closure control inputs, UC0, UC1, DC0, DC1,
VU, VD, B0 and B1 are internally pulled–up by a 50K
resistance. The UC0, UC1, DC0 DC1, VU, VD, B0, and
B1 inputs are internally debounced and require no exter-
nal components for input signal conditioning.
3–WIRE SERIAL INTERFACE CONTROL
One method of communication and control of the
DS1802 is accomplished through a 3–wire serial port
interface that drives an internal control logic unit. The
3–wire serial interface is designed for microprocessor or
microcontroller applications. The interface consists of
three input signals which include RST, CLK and D.
The RST control signal is used to enable 3–wire serial
port write operations. The CLK terminal is a clock signal
input that provides synchronization for data I/O while the
D signal input serves to transfer potentiometer wiper
position settings to the device.
As shown in Figure 5, a 3–wire serial port operation
begins with a transition of the RST signal input to a high
state. Once the 3–wire port has been activated, data is
clocked into the part on the low to high transition of the
CLK signal input. Data input via the D line is transferred
in order of the desired potentiometer–0 value followed by
the potentiometer–1 value.
The DS1802 contains two 65–position potentiometers
whose wiper positions are set by an 8–bit value. These
two 8–bit values are written to the 16–bit I/O shift register
which is used to store wiper position during powered
conditions. Because the potentiometer has 65–posi-
tions, only seven bits of data are needed to set wiper
position. A detailed diagram of the 16–bit I/O shift regis-
ter is shown in Figure 5. Bits 0 through 7 are reserved for
the potentiometer–0 control while bits 8 through 15 are
reserved for control of potentiometer–1.
Bits 0 through 5 are used for actual wiper positioning for
potentiometer–0. Bit 6 is used to mute potentiometer–0.
If this bit has value “1”, the potentiometer–0 wiper will be
connected to the low end of the resistive array. The mute
feature of the DS1802 will be discussed in the section
entitled “Mute Operation of DS1802”. The value of bit 7 is
a don’t care and will not affect operation of the DS1802 or
potentiometer–0.
Bits 8 through 13 are used for wiper positioning of poten-
tiometer–1. Bit 14 is used for muting of the potentiome-
ter–1 wiper output. Bit 15, like bit 7, is a don’t care and will
not affect operation of the DS1802.
Data for the DS1802 is transmitted LSB first starting with
bit 0. A complete transmission of 16 bits of data is
required to insure proper setting of each potentiometer’s
wiper. An incomplete transmission may result in unde-
sired wiper settings.
Once the complete 16 bits of information has been trans-
mitted and the RST signal input transitions to a low state,
the new wiper positions are loaded into the part.
16–BIT I/O SHIFT REGISTER
Figure 5
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
WIPER–1
POSITION VALUE
WIPER–0
POSITION VALUE
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1803 | Addressable Dual Digital Potentiometer(可尋址雙路數(shù)字電位器) |
| DS1804 | NV Trimmer Potentiometer(非易失性微調(diào)電位器) |
| 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(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1802+ | 功能描述:數(shù)字電位計(jì) 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(chǔ)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| DS1802E | 功能描述:數(shù)字電位計(jì) 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(chǔ)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(fēng)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(jì) 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(chǔ)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| DS1802E+ | 功能描述:數(shù)字電位計(jì) 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(chǔ)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。