參數(shù)資料
型號: DS1802E
廠商: Maxim Integrated Products
文件頁數(shù): 13/17頁
文件大?。?/td> 0K
描述: IC POT DL AUDIO TAP W/PB 20TSSOP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 74
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
存儲器類型: 易失
接口: 3 線串行,按鈕
電源電壓: 2.7 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 20-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 20-TSSOP
包裝: 管件
DS1802
5 of 17
SINGLE PUSHBUTTON CONFIGURATION Figure 2(a)
DUAL PUSHBUTTON CONFIGURATION Figure 2(b)
Contact closure is defined as the transition from a high level to a low level on the contact closure input
terminals. The DS1802 interprets input pulse widths as the means of controlling wiper movement. A
single pulse input over the UCx or DCx input terminals will cause the wiper to move one position. A
transition from high to low on these inputs is considered the beginning of pulse activity or contact
closure. A single pulse is defined as being greater than 1 ms but lasting no lo nger than a second. This is
shown is Figure 4(a).
Repetitive pulsed inputs can be used to step through each resistive position of the device in a relatively
fast manner (see Figure 4(b)). The requirement for repetitive pulsed inputs is that pulses must be
separated by a minimum time of 1 ms. If not, the DS1802 will interpret repetitive pulses as a single pulse.
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