AT42QT1010-TSHR QS446 Atmel, AT42QT1010-TSHR QS446 Datasheet
AT42QT1010-TSHR QS446
Specifications of AT42QT1010-TSHR QS446
Related parts for AT42QT1010-TSHR QS446
AT42QT1010-TSHR QS446 Summary of contents
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... Self-calibration, auto drift compensation, noise filtering • Applications: – Control panels, consumer appliances, proximity sensor applications, toys, lighting controls, mechanical switch or button, • Patents: ® – QTouch (patented charge-transfer method) ™ – HeartBeat (monitors health of device) One-channel Touch Sensor IC AT42QT1010 9541G–AT42–03/10 ...
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... Pin Type OUT 1 O Vss 2 P SNSK 3 I/O SNS 4 I/O Vdd 5 P SYNC 6 I 1.3 Schematic Figure 1-1. AT42QT1010 2 OUT 1 6 SYNC/MODE VSS 2 5 VDD SNSK 3 4 SNS Comments Output state – Supply ground – Sense pin Cs + Key Sense pin Cs Power – ...
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... Overview of the AT42QT1010 2.1 Introduction The AT42QT1010 (QT1010 digital burst mode charge-transfer (QT of detecting near-proximity or touch, making it ideal for implementing touch controls. With the proper electrode and circuit design, the self-contained digital IC will project a touch or proximity field to several centimeters through any dielectric like glass, plastic, stone, ceramic, and even most kinds of wood ...
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... Fast mode is useful when speed of response is the prime design requirement. The delay between bursts in Fast mode is approximately 1 ms, as shown in AT42QT1010 4 2.4.2. Note that, although this affects the responsiveness of the sensor less of an Figure 3-1. 9541G– ...
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... SNSK ~1ms SYNC Figure 3-2 on page Low Power Mode (SYNC Held Low) ~80 ms Sleep Sleep SNSK SYNC OUT 3-2). Therefore, to guarantee entry into SYNC mode the low period of the SYNC (Figure 3-3 on page AT42QT1010 5. Fast detect integrator Sleep (Figure 3-1 on page 6). 5 ...
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... The internal signal threshold level is fixed at 10 counts of change with respect to the internal reference level, which in turn adjusts itself slowly in accordance with the drift compensation mechanism. The QT1010 employs a hysteresis dropout of two counts of the delta between the reference and threshold levels. AT42QT1010 6 SYNC Mode (Triggered by SYNC Edges) sleep sleep ...
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... Once an object is sensed, the drift compensation mechanism ceases since the signal is legitimately high, and therefore should not cause the reference level to change. 9541G–AT42–03/10 (Figure 3-5) is performed by making the reference level track the raw signal AT42QT1010 7 ...
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... The QT1010 output has a HeartBeat “health” indicator superimposed all modes. This operates by taking the output pin into a three-state mode for 15 µs, once before every QT burst. This output state can be used to determine that the sensor is operating properly, using one of several simple methods can be ignored. AT42QT1010 8 Drift Compensation S ignal ...
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... Obtaining HeartBeat Pulses with a Pull-up Resistor HeartBeat™ Pulses Ro 1 Using a Microcontroller to Obtain HeartBeat Pulses in Either Output State PORT_M Microcontroller PORT_M.y AT42QT1010 VDD 5 3 VDD OUT SNSK 4 SNS 6 SYNC VSS ...
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... Rs resistor and the electrode should not run near ground, to reduce loading. For best EMC performance the circuit should be made entirely with SMT components. AT42QT1010 10 for the power supply range current drain averages less than 2) should be placed as close to the body of the chip as possible so that the ® ...
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... ESD event. The bypass capacitor should be placed very close to the Vss and Vdd pins. 4.4 Power On On initial power up, the QT1010 requires approximately 100 ms to power on to allow power supplies to stabilize. During this time the OUT pin state is not valid and should be ignored. 9541G–AT42–03/10 AT42QT1010 11 ...
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... Time between end of burst and start of the next (LP mode) T Burst length BL T Response time R T HeartBeat pulse width HB AT42QT1010 12 -40°C to +85°C -55°C to +125° +6.5V ±20 mA Infinite Infinite -0. 0.6) Volts DD +1.8 to 5.5V ±20 mV ±100 ...
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... Figure 5-1. Figure 5-2. 9541G–AT42–03/10 T – Time Between Bursts (LP Mode – Burst Length BL AT42QT1010 13 ...
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... Low input logic level IL V High input logic level HL V Low output voltage OL V High output voltage OH I Input leakage current IL C Load capacitance range X A Acquisition resolution R AT42QT1010 14 Min Typ Max Units 10 counts 2 counts 4 samples 60 seconds Min Typ Max Units 1.8 5.5 V 203 ...
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... Die is facing down after trim/form. Package Drawing Contact: packagedrawings@atmel.com 9541G–AT42–03/ Side View c SEATING PLANE View A-A C SEE VIEW B TITLE 6ST1, 6-lead, 2.90 x 1.60 mm Plastic Small Outline Package (SOT23) AT42QT1010 A2 A 0.10 C SEATING PLANE 0.10 C SEATING PLANE A1 C COMMON DIMENSIONS (Unit of Measure = mm) ...
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... Part Marking Note: Pin 1 ID 5.8 Part Number Part Number AT42QT1010-TSHR 5.9 Moisture Sensitivity Level (MSL) AT42QT1010 16 Samples of the AT42QT1010 may also be marked T10E. Abbreviated 1010 Part Number: AT42QT Description 6-pin SOT23 RoHS compliant IC MSL Rating Peak Body Temperature MSL1 1010 ...
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... There are no PCB layout issues as the two devices share a common footprint with the same pinouts. A.4 Power Consumption The QT1010 has a range of 1.8 to 5.5V for Vdd, compared with 2.0 to 5.5V on the QT100A. Notice should also be taken of the differences in power consumption in both Fast and LP operation modes. 9541G–AT42–03/10 AT42QT1010 17 ...
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... Revision No. Revision A – May 2009 Revision B – August 2009 Revision C – August 2009 Revision D – January 2010 Revision E – January 2010 Revision F – February 2010 Revision G – March 2010 AT42QT1010 18 ® Design History Initial release Update for chip revision 2.2 ...
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... Notes 9541G–AT42–03/10 AT42QT1010 19 ...
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... LOSS OF INFORMATION) ARISING OUT OF THE USE OR INABILITY TO USE THIS DOCUMENT, EVEN IF ATMEL HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Atmel makes no representations or warranties with respect to the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and product descriptions at any time without notice. Atmel does not make any commitment to update the information contained herein. Unless specifically provided otherwise, Atmel products are not suitable for, and shall not be used in, automotive applications. Atmel’ ...