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参数资料
| 型号： | QT115-D |
| 英文描述： | IC-QPROX SENSOR |
| 中文描述： | 集成电路量研传感器 |
| 文件页数： | 5/9页 |
| 文件大小： | 78K |
| 代理商： | QT115-D |
Piezo Driver Note
The piezo acoustic driver has been removed, as the duration required to operate the beeper would interfere with
the sensing interval and slow down the device.
Sensitivity Adjustment
The gain pin adjustment is via fixed thresholds slaved to the reference level. Likewise, gain strapping is
different from the QT110: instead of connecting the Gain pin to SNS1 or SNS2, Gain must be connected to
either Vdd (+) or Gnd as shown in Table 1-1 below. The E110 board does not directly support this and a wire
should be run from the centerpost of the Gain jumper strip to either switched-Vdd or Gnd, as desired.
Vdd
High (6 counts)
Gnd
Low (12 counts)
Tie Pin 5 to:
Gain
Table 1-1 Gain Setting Strap Options
The sensitivity of the circuit is governed also by the relative sizes of Cs and Cx. A detection is made if the
signal rises by 6 or 12 counts from the reference level depending on gain pin strapping; this amount, unlike the
QT110, is not ratiometric to the signal level and therefore the sensitivity can be altered by simply changing Cs
(and by changing gain strapping). To provide a consistent level of sensitivity, only stable types of capacitors are
recommended for Cs, such as NPO, C0G, PPS film, and certain types of polycarbonate when used over normal
room temperature ranges.
Larger values of Cs will make the sensor more sensitive, while larger amounts of Cx will desensitize it (see
Charts 1, 2). Minimizing stray Cx is crucial if high levels of sensitivity are desired. By using values of Cs around
0.47uF (470nF), proximity distances of several centimeters can easily be obtained from small electrodes.
NOTE: It is extremely important to maintain stable levels of Vdd, as the supply is used as a
reference. Minor fluctuations in Vdd WILL cause false triggers or rapid swings in gain. DO NOT use
bench power supplies or supply circuits shared with other digital functions. Ordinary 78L05 class
regulators are fine in almost all cases. The QT113 is an extremely sensitive device. Do not take
power supply issues lightly.
Output Mode and Timing Changes
The QT113 has different output mode strap options from the QT110 as shown:
infinite
Vdd
Gnd
DC Out
10s
Gnd
Toggle
60s
Gnd
Vdd
DC Out
10s
Vdd
DC Out
Max On-
Duration
Tie
Pin 4 to:
Tie
Pin 3 to:
Table 2-1 Output Mode Strap Options
The only change is that 'Pulse Mode' has been replaced by a DC Out mode having no recalibration timeout
(max on-duration set to infinite).
All other operating modes, specifications, and wiring should be taken from the QT110 data sheet.
Calibration and Drift Compensation
Calibration and drift compensation operate in the same manner as in the QT110. With large values of Cs and
small values of Cx, drift compensation will appear to operate more slowly than with the converse. Note that the
positive and negative drift compensation rates are different.
3 August 1999
QT115 QProx 8-pin Sensor
相关PDF资料 |
PDF描述 |
|---|---|
| QT115-S | IC-SMD-QPROX SENSOR |
| QT114-D | IC-QPROX SENSOR |
| QT114-S | IC-SMD-QPROX SENSOR |
| QT12C-SERIES | Peripheral IC |
| QT12E-SERIES | Peripheral IC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| QT115-DG | 制造商:Quantum Corp 功能描述:IC QPROX SENSOR DIP8 115 |
| QT115G1A-ISG | 功能描述:板机接口移动感应器和位置传感器 INTEGRATED-CIRCUIT RoHS:否 制造商:Panasonic Electric Works 封装 / 箱体:TO-5 感应距离:3 m 输出类型:Digital 电源电压-最大:6 V 电源电压-最小:2.3 V 电源电流: 最大工作温度:+ 60 C 封装:Bulk |
| QT115H | 制造商:QUANTUM 制造商全称:QUANTUM 功能描述:QT 11x Series Variations |
| QT115-IS | 功能描述:SENSOR IC TOUCH/PROXMTY 1CH8SOIC RoHS:否 类别:集成电路 (IC) >> 数据采集 - 触摸屏控制器 系列:QProx™ 标准包装:96 系列:- 类型:- 触摸面板接口:- 输入数/键:- 分辨率（位）:- 评估套件:* 数据接口:- 数据速率/采样率 (SPS，BPS):- 电压基准:- 电源电压:- 电流 - 电源:- 工作温度:- 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
| QT115-ISG | 功能描述:IC SENSOR TOUCH/PROX 1CHAN 8SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 触摸屏控制器 系列:QProx™ 标准包装:96 系列:- 类型:- 触摸面板接口:- 输入数/键:- 分辨率（位）:- 评估套件:* 数据接口:- 数据速率/采样率 (SPS，BPS):- 电压基准:- 电源电压:- 电流 - 电源:- 工作温度:- 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
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