QT60161B-A QUANTUM [Quantum Research Group], QT60161B-A Datasheet
QT60161B-A
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QT60161B-A Summary of contents
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... SCK 3 RST 4 QT60161B Vdd 5 TQFP-44 Vss 6 XTO 7 XTI Automotive panels Machine tools QT60161B-AS Copyright © 2001 Quantum Research Group Ltd Pat Pend. R1.03/04. ENSOR CS2A 32 CS2B 31 CS3A 30 CS3B 29 Aref 28 AGnd 27 AVdd 26 YS3 25 YS2 24 ...
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... QT60161B / R1. ...
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... Vref input for conversion reference Oscilloscope sync output 44 SS I/O OD Slave select for SPI direction control; active low I/ Input O = Output Pwr = Power pin I/O = Bidirectional line PP = Push Pull output drive OD = Open drain output drive lQ ©Quantum Research Group Ltd. iii www.qprox.com QT60161B / R1.03 ...
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... For more information see Sections 4 and 5. The parallel scan port permits the replacement of electromechanical keypads that would be scanned by a microcontroller; the scan interface mimics an electromechanical keyboard’s response. www.qprox.com QT60161B / R1.03 SPIRAL ...
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... Signal levels can drift because of changes in Cx and Cs over time crucial that such drift be compensated, else false detections, non- detections, and sensitivity shifts will follow. The QT60161B can compensate for drift using two setups, ^H and ^I. Drift compensation is performed by making the reference level track the raw signal at a slow rate, but only while there is no detection in effect ...
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... Reference Guardbanding See also commands ^N, ^O, page 23; ‘L’, page 24 The QT60161B provides for a method of self-checking that allows the host to ascertain whether one or more key reference levels are 'out of spec'. This feature can be used to determine line has broken, the matrix panel has delaminated from the control panel, or there is a circuit fault ...
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... Research Group Ltd. flow using minimal data transfers and low host software overhead. 3 Circuit Operation A QT60161B reference circuit is shown in Figure 2-1. 3.1 Matrix Scan Sequence The circuit operates by scanning each key sequentially, key by key. Key scanning begins with location X=0 / Y=0. X axis keys are known as rows while Y axis keys are referred to as columns ...
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... Such noise can be readily suppressed by the use of series resistors as described above. Adding a small capacitor to the matrix line on the QT60161B side of the R, for example 100pF to ground near the QT60161B, will greatly help to reduce such effects. 3.4 'Y' Gate Drives There are 4 'Y' gate drive pairs (CS0A,B..CS3A,B); only one pair of these lines is used during a burst for a particular key ...
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... XTI; XTO should be left unconnected. The frequency of oscillation should be 12MHz +/-2%. 3.13 Startup / Calibration Times The QT60161B requires initialization times as follows: 1. From very first powerup to ability to communicate: 2,000ms (One time event to initialize all of eeprom) 2. Normal cold start to ability to communicate: 70ms (Normal initialization from any reset) 3 ...
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... The LED will glow brightly (i.e. pin 40 will be solid low) during calibration of one or more keys, for example at startup. When a key is detected, the LED will pulse low for the duration of 10 www.qprox.com QT60161B / R1.03 Noise sync: See also command ^W, page 26. External fields can cause interference leading to false detections or sensitivity shifts ...
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... Research Group Ltd. 3.18 ESD / Noise Considerations In general the QT60161B will be well protected from static discharge during use by the overlying panel. However, even with a dielectric panel transients currents can still flow into scan lines via induction or in extreme cases, dielectric breakdown ...
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... SCK - SPI clock - input only clock pin from host. The host must shift out data on the falling edge of SCK; the QT60161B clocks data in on the rising edge of SCK. Important note: SCK must idle low just before and after SS’ transitions either up or down, or the transmission will fail ...
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... SCK - SPI clock - bidirectional - an input pin when receiving data; an output pin when sending. The host must shift out data on the falling edge of SCK; the QT60161B clocks data in on the rising edge of SCK. Important note: SCK from the host must be low before asserting SS’ low or high at either end of a byte or the transmission will fail. SCK should idle low ...
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... QT60161B / R1. ...
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... SCK MISO Y Lines ( MOSI Ra shown RESET 1K (MS not 1nF shown) Ra 680 47pF 1,000 120pF 1,000 270pF 2,200 470pF www.qprox.com QT60161B / R1.03 Host MCU P_IN P_OUT1 SCK MISO MOSI P_OUT2 Host MCU SS SCK MISO MOSI P_OUT Ca ...
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... Also, the ‘L’ command only operates if the device is in Put mode as a further protection. Flash memory has a limit of 1,000 write cycles, so copy-to-Flash should not be used often. 16 www.qprox.com QT60161B / R1.03 ...
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... Setup commands as 'Puts'; after, when a 2-byte Setup command is received from the host the part will respond by programming in the desired parameter for the key(s) which are affected. The 'p' command is always single-byte and echoes back itself. 17 www.qprox.com QT60161B / R1.03 C OMMAND Bytes / Cmd 2nd Byte Range Returns 1 ...
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... Bytes / Cmd # Bytes Rtnd n/a n/a n ETECTION NTEGRATOR OUNTS Scope Bytes / Cmd # Bytes Rtnd n/a n/a n EPROM HECKSUM Scope Bytes / Cmd # Bytes Rtnd n/a n/a n/a n www.qprox.com QT60161B / R1.03 Returns n/a 0..0xFFFF Returns n/a 0x00..0xFF Returns n/a 0..0xFFFF Returns n/a 0x00..0xFF Returns n/a 0x00..0xFF ...
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... OUNTS FOR Scope Bytes / Cmd # Bytes Rtnd n/a n/a n RROR ODE FOR ELECTED Scope Bytes / Cmd # Bytes Rtnd n/a n/a n www.qprox.com QT60161B / R1.03 Returns n/a 0..0xFFFF G ROUP Returns n/a 0x00..0xFF EY Returns n/a 0x00..0x0F ...
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... X3Y0 X2Y0 - - - - 3 2 X3Y1 X2Y1 - - - - 7 6 X3Y2 X2Y2 - - - - 11 10 X3Y3 X2Y3 - - - - 15 14 www.qprox.com QT60161B / R1.03 Returns n/a 0x00..0xFF key X1Y0 X0Y0 1 0 X1Y1 X0Y1 5 4 X1Y2 X0Y2 9 8 X1Y3 X0Y3 13 12 ...
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... YSTERESIS Scope Bytes / Cmd Byte 2 Range 16 2 0x01..0x03 URST ENGTH Scope Bytes / Cmd Byte 2 Range 0x00..0x40 www.qprox.com QT60161B / R1.03 Returns 0x03 0x01..0x03 Returns 0x04 0x01..0x03 Returns 0x06 0x00..0x40 ...
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... D I EGATIVE ETECT NTEGRATOR Scope Bytes / Cmd Byte 2 Range 0x00..0xFF 123 175 255 www.qprox.com QT60161B / R1.03 R ATE Returns 0x09 0x01..0x64 12 100 L IMIT Returns 0x0A 0x00..0xFF ...
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... Special condition: If the value is set to 0, this feature is disabled OSITIVE EFERENCE RROR AND Scope Bytes / Cmd Byte 2 Range 16 2 0x00..0xFF EGATIVE EFERENCE RROR AND Scope Bytes / Cmd Byte 2 Range 16 2 0x00..0xFF 16 1 n/a www.qprox.com QT60161B / R1.03 Returns 0x0E 0x00..0xFF Returns 0x0F 0x00..0xFF ...
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... There is no get version of the command EPROM HECKSUM Scope Bytes / Cmd # Bytes Rtnd n/a n/a n/a n OCK EFERENCE EVELS Scope Bytes / Cmd 2nd Byte 16 2 0x00 n/a n/a n/a K ECALIBRATE EYS Scope Bytes / Cmd 2nd Byte n/a n/a n/a n/a www.qprox.com QT60161B / R1.03 Returns n/a 0x00..0xFF Returns 0x4C n/a Returns 0x62 n/a ...
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... ATA ATE ELECTION Scope Bytes / Cmd 2nd Byte Range n/a 2 0x00..0x04 n/a 1 n/a 93.75 kHz 187.5 kHz 750 kHz 3 MHz 9600 baud 14400 baud 19200 baud 38400 baud 57600 baud www.qprox.com QT60161B / R1.03 Returns 0x11 0x00..0x04 ...
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... The setting of ^W does not become effective until the device has been powered off and back on again or after the reset (‘r’) command has been issued. lQ ©Quantum Research Group Ltd. Returns 0x00, 0x01 0x12 n/a 0x00, 0x01 Returns 0x00, 0x01 0x17 n/a 0x00, 0x01 26 www.qprox.com QT60161B / R1.03 ...
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Function Summary Table Char Hex Name Description Direction Commands all subsequent Setup commands become 'Gets' g 0x67 Get all subsequent Setup commands become 'Puts’ p 0x70 Put Scope Commands s 0x73 Set one key scope targets a specific key ...
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Char Hex Name Description Setup Commands Signal threshold; fewer counts = more sensitive ^A 0x01 Negative threshold 10, 12, 15, 17, 20, 25, 30, 35, 45, 55, 64 sensitivity to positive signals for recalibration ^B ...
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Char Hex Name Description Supervisory Commands 6 0x36 Eeprom checksum returns checksum of internal eeprom locks reference levels into eeprom for future boundary L 0x4C Lock references checks. ‘L’ must be followed by 0x00 (null) 100ms after the command byte ...
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... Burst Max BL Max BL Spacing 25 500 20 50 1,000 40 64 2,000 64 30 Pulse Spacing = 5µs Pulse Spacing = 6µs Burst Burst Max BL Spacing Spacing 500 40 500 1,000 64 1,000 2,000 64 2,000 Pulse Spacing = 10µs Burst Max BL Spacing 500 20 1,000 40 2,000 64 www.qprox.com QT60161B / R1.03 Max ...
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... Min Typ Max Units 100 1 1,000 15 2,000 +105 +125 Notes mA Not including external components µA Not including external components 4mA sink V 1mA source µA bits Drdy, SS’ pins Notes µS µS µS www.qprox.com QT60161B / R1. ...
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... Burst Spacing 500µs 1ms 10ms 10ms 20ms 20ms 65ms 65ms 65ms 65ms 2.5ms 2ms 2ms 2ms 1.5ms 2ms www.qprox.com QT60161B / R1.03 32 2ms 10ms 20ms 65ms 65ms 1.1ms 1ms 1ms 2ms 10ms 20ms 65ms 65ms 1.2ms 1.1ms 1.1ms ...
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... TQFP Part Number QT60161B- 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 QT60161B-A www.qprox.com QT60161B / R1.03 ...
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... Q qmbtn recalibrate keys (command), 24 recalibration calibration 10, 17, 19, 21, 23, 24, 29 reset 10, 11, 17, 25, 26 resonator see also oscillator return last command, 25 www.qprox.com QT60161B / R1.03 34 ...
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... S slave mode, 13 sleep mode, 10 spi, 12, 15 spi noise problems ©Quantum Research Group Ltd. T tcm, 12 water films x-drives www.qprox.com QT60161B / R1.03 35 ...
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Tel: +44 (0)23 8056 5600 Fax: +44 (0)23 8045 3939 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 Terms and Conditions of ...