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參數(shù)資料
| 型號(hào)： | X9318 |
| 元件分類： | 數(shù)字電位計(jì) |
| 英文描述： | Digitally Controlled Potentiometer (XDCP)(單DCP,抽頭位置掉電自動(dòng)保存,高輸出端電壓,可部分替代X9312W) |
| 中文描述： | 數(shù)控電位器（數(shù)字電位器）（單應(yīng)課稅品許可證，抽頭位置掉電自動(dòng)保存，高輸出端電壓，可部分替代X9312W） |
| 文件頁數(shù)： | 21/22頁 |
| 文件大?。?/td> | 269K |
| 代理商： | X9318 |
21 of 22
AN 139
Application Note
www.xicor.com
January, 2001
A Simple XDCP Programmer
In the process of breadboard evaluation and debugging,
the programmer provides a simple means to program the
XDCP device. Figure 11 illustrates a simple
programmer that was used to program the reference
power supply design. The programmer is constructed
with a 74C14 hex Schmitt trigger, three SPDT toggle
switches and three 10K resistors. The 74C14 functions
to de-bounce the switches such that the XDCP terminals
have a clean level transitions. A step by step procedure
for programming the XDCP device is given below.
Figure 11. Simple XDCP Programmer
Programming the XDCP IC
1. Turn power off
2. Connect the programmer and set switches to:
CS
U or D as desired
INC
3. Turn power on
4. Set programmer switch to CS
5. XDCP increments (decrements) when the switch is
toggled from INC to INC. Repeat for each increment
(decrement)
6. Using U/D & INC switches set XDCP Wiper to desired
position
7. Set programmer switch to CS & INC
8. Power Off
9. Disconnect programmer
10.When power is reapplied, the XDCP wiper position will
return to its previously set position
Design and Construction Tips
With regard to the reference design:
1. To minimize common mode EMI, there must be a low
inductance ground path from R103 ground (see Fig. 3) to
output ground (see Fig.4). A copper tape with a width no
less than one fifth of it’s length is suggested.
2. Refer to Figure 4. The loop formed by T1 (pins 10, 12 and
14), CR5 anode, the junction of CR5 cathodes and
through CR5 back to T1 (pins 9, 11 and 13) should be
made as low an inductance as practical. This can be
achieved by making the loop area physically small, using
wide conductors and interleaving conductors where
possible. Note that T1 the secondary pin out is staggered
to allow interleaving.
3. The R/C snubber across each CR5 diode must be located
physically close to the respective diode. Less than 1/2
inch is a good guideline.
R
H
V
CC
V
SS
R
L
R
W
7
9
5
8
6
8
3
5
47K
10K
47K
PROGRAMMER
TYPICAL XICOR X9315
CONNECTOR INTERFACE
47K
4
6
2
1
CS
U/D
INC
INC
INC
1
3
7
2
4
10K
U
D
1
/
6
74C14
HEX SCHMITT TYP.
13
11
12
14
10
10K
CS
CS
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| X9318WP8 | 功能描述:IC XDCP 100-TAP 10K 8-DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 接片:32 電阻（歐姆）:50k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 50 ppm/°C 存儲(chǔ)器類型:易失 接口:3 線串行（芯片選擇，遞增，增/減） 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:SOT-23-6 細(xì)型，TSOT-23-6 供應(yīng)商設(shè)備封裝:TSOT-23-6 包裝:帶卷 (TR) |
| X9318WP8I | 功能描述:IC XDCP 100-TAP 10K 8-DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 接片:32 電阻（歐姆）:50k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 50 ppm/°C 存儲(chǔ)器類型:易失 接口:3 線串行（芯片選擇，遞增，增/減） 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:SOT-23-6 細(xì)型，TSOT-23-6 供應(yīng)商設(shè)備封裝:TSOT-23-6 包裝:帶卷 (TR) |
| X9318WP8IZ | 功能描述:IC XDCP 100-TAP 10K 8-PDIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 接片:256 電阻（歐姆）:100k 電路數(shù):2 溫度系數(shù):標(biāo)準(zhǔn)值 35 ppm/°C 存儲(chǔ)器類型:易失 接口:6 線串行（芯片選擇，遞增，增/減） 電源電壓:2.6 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) |
| X9318WS8 | 功能描述:IC XDCP 100-TAP 10K 8-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 接片:32 電阻（歐姆）:50k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 50 ppm/°C 存儲(chǔ)器類型:易失 接口:3 線串行（芯片選擇，遞增，增/減） 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:SOT-23-6 細(xì)型，TSOT-23-6 供應(yīng)商設(shè)備封裝:TSOT-23-6 包裝:帶卷 (TR) |
| X9318WS8I | 功能描述:IC XDCP 100-TAP 10K 8-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 接片:32 電阻（歐姆）:50k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 50 ppm/°C 存儲(chǔ)器類型:易失 接口:3 線串行（芯片選擇，遞增，增/減） 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:SOT-23-6 細(xì)型，TSOT-23-6 供應(yīng)商設(shè)備封裝:TSOT-23-6 包裝:帶卷 (TR) |
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