參數(shù)資料
型號(hào): DS1801
廠商: Maxim Integrated Products
文件頁數(shù): 3/10頁
文件大?。?/td> 0K
描述: IC POT DUAL AUDIO TAPER 14-PDIP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 25
接片: 64
電阻(歐姆): 45k
電路數(shù): 2
溫度系數(shù): 標(biāo)準(zhǔn)值 750 ppm/°C
存儲(chǔ)器類型: 易失
接口: 3 線串口
電源電壓: 2.7 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 通孔
封裝/外殼: 14-DIP(0.300",7.62mm)
供應(yīng)商設(shè)備封裝: 14-PDIP
包裝: 管件
DS1801
2 of 10
OPERATION
The DS1801 provides two 65-position potentiometers per package, each having a logarithmic resistive
characteristic as shown in Table 1. The DS1801 is controlled by a 3-wire serial interface. The 3-wire
serial interface is designed for CPU-controlled applications and allows the potentiometer’s exact wiper
position to be read or written.
The DS1801 design supports daisy-chaining for multi-device
environments.
Figure 1 presents a block diagram of the DS1801. As shown, the inputs from the 3-wire serial interface
drive a command/control unit. The command/control unit interprets these inputs for control of the two
potentiometers.
On power-up, the serial port is stable and active within 10 microseconds. The wiper position on power-up
will be at position 63, the low end of the potentiometer. Position 64 is the mute level.
RESISTANCE CHARACTERISTICS Table 1
POSITION
OUTPUT LEVEL (dB)
00
1-1
2-2
3-3
4-4
5-5
63
-63
64(mute)
<-90
DS1801 BLOCK DIAGRAM Figure 1
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