qt60320c Quantum Research Group, qt60320c Datasheet
qt60320c
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qt60320c Summary of contents
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... RST 4 QT60320 Vcc 5 Gnd 6 XT2 7 XT1 Automotive panels Machine tools TQFP Copyright © 1999, 2001 Quantum Research Group Ltd QT60320C R1.08/01. CC1 31 CC2 Aref 28 AGnd 27 Vcc ...
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... If the voltage on Cs rises excessively it can fall outside of the ADC's range. To reduce the voltage again without affecting gain, one of two (or both) Cz capacitors can be switched to Figure 1-2 Field Flows When Touched Figure 1-3 Fields With a Conductive Film 2 ove rly element elem ent QT60320C R1.08/01.03 ...
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... The PLD takes as its input all 'X' and 'Y' lines, and with added RC time constants creates the required short dwell time on the Y switches. The code for the PLD is available freely on X drives ( shown Reset switch Cs QT60320C R1.08/01.03 Interdigitated keys ADC ...
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... Cz capacitors, an amplifier, some analog switches, and an R2R ladder DAC to operate. The Cs capacitor performs the charge integration function by collecting charge coupled though a selected key during the Figure 1-7 Drift Compensation is Hysteresis Threshold could be Output HRESHOLD AND YSTERESIS ALCULATIONS URATION I ETECTION NTEGRATOR Reference Signal QT60320C R1.08/01.03 ...
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... Two indicator LEDs (optional show sensing state and calibration status; 74AC04 inverters to drive the two banks of analog switches in opposite states; Two 74HC4066 analog switches 15nF A reset mosfet, most any small-signal mosfet with a guaranteed on-state at 4 volts QT60320C R1.08/01. ...
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... Baud Rate: Parity: Length: Stop bits: These specifications hold if the device is operated from an 8MHz crystal or resonator. 6 basis. The algorithm uses a drive line and a gate A . The acquisition of a key is done using a B 9600 None 8 bits 1 QT60320C R1.08/01.03 successive ...
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... X1/Y1 immediately following that for the gain. X1/Y2 The gain and threshold settings for all X1/Y3 buttons are held in an internal byte array, starting at address 100 (decimal). X1/Y4 QT60320C R1.08/01.03 R EPORTING R EPORTING ...
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... 15nF (a common value for the circuit), then each Cz should be 820pF. The Cz capacitors should be of type NPO or C0G ceramic, or PPS film X6/Y1 X5/Y1 X4/Y1 X3/Y1 X6/Y2 X5/Y2 X4/Y2 X3/Y2 X6/Y3 X5/Y3 X4/Y3 X3/Y3 X6/Y4 X5/Y4 X4/Y4 X3/ OMMAND SER ORT RITE - OMMAND SER ORT EAD CAPACITORS Z QT60320C R1.08/01. X2/Y1 X1/Y1 X2/Y2 X1/Y2 X2/Y3 X1/Y3 X2/Y4 X1/Y4 ...
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... This is a considerable advantage in dealing with ESD. The part's Y control pins do not directly go to the matrix. The 4 user-input pins may be vulnerable and should be resistor and/or diode protected if they are in danger of being subject to ESD. 9 QT60320C R1.08/01.03 ...
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... F4.com = !(ys4 & !xsd); " enables to 3125 are active low F3.com = !(ys3 & !xsd); F2.com = !(ys2 & !xsd); F1.com = !(ys1 & !xsd The EPLD functions to generate control signals for the QS3125 quad n-channel switch, to POLARITY OUTPUT_TYPE Feed_Pin ) Feed_Pin ) Feed_Pin ) Feed_Pin ) Feed_Pin ) 10 FEEDBACK_TYPE ) QT60320C R1.08/01.03 ...
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... E6S3 BOARD SCHEMATIC LQ 11 QT60320C R1.08/01.03 ...
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... Low input logic level V High input logic level HL V Low output voltage OL V High output voltage Input leakage current A R Acquisition resolution LQ Min Typ Max 25 0.8 2.2 0.6 Vdd-0.7 ± +105 Units Notes 4mA sink V 1mA source µA bits QT60320C R1.08/01. ...
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... TQFP A 0 QT60320C- Inches Min Max Notes 0.386 0.394 SQ 0.458 0.478 SQ 0.003 0.008 0.018 0.030 0.002 0.006 - 0.047 0.012 0.018 0.031 0.031 BSC 0.315 0.315 BSC 0 7 Marking QT60320C-A QT60320C R1.08/01.03 ...
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Tel: +44 (0)23 8056 5600 Fax: +44 (0)23 8045 3939 Tel: 412-391-7367 Fax: 412-291-1015 The specifications set out in this document are subject to change without notice. All products sold and services supplied by QRG are subject to our ...