MCP2036-E/MG MICROCHIP [Microchip Technology], MCP2036-E/MG Datasheet
MCP2036-E/MG
Related parts for MCP2036-E/MG
MCP2036-E/MG Summary of contents
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... DRVIN 6 CLK 7 © 2009 Microchip Technology Inc. Description: The MCP2036 Inductive Sensor Analog Front End (AFE) combines all the necessary analog functions for a complete inductance measurement system. The device includes: • High-frequency, current-mode coil driver for exciting the sensor coil. • Synchronous detector for converting AC sense voltages into DC levels. • ...
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... MCP2036 1.0 FUNCTIONAL DESCRIPTION The MCP2036 measures a sensor coil’s impedance by exciting the coil with a pulsed DC current and measuring the amplitude of the resulting AC voltage waveform. The drive current is generated by the on-chip current amplifier/driver which takes the high-frequency triangular waveform present on the DRVIN input, and amplifies it into the pulsed DC current for exciting the series combination of the sensor coils ...
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... Key Coils LREF FIGURE 1-2: MCP2036 Typical Application The coil voltages are then multiplexed into the Synchronous Detector section by the LBTN/LREF multiplexer. This allows the microcontroller to select which signal is sampled by the detector. The detector converts the coil voltages into a DC level using a frequency mixer, amplifier, and filter ...
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... MCP2036 1.1 Coil Driver The coil driver produces the excitation current for the sensor coils. The coil driver input is derived from the digital clock supplied to the CLK input. The digital signal is first filtered through a low-pass filter, composed and passed to the DRVIN input. The driver will ...
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... The V pin is the ground pin and the current return SS path for both analog and digital circuitry of the MCP2036 analog ground plane is available recommended that this device be tied to the analog ground plane of the PCB. © 2009 Microchip Technology Inc. 2-1. ...
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... MCP2036 2.9 Detector Output Voltage (V The amplifier/filter output from the detector. This is a low-impedance analog output pin (V OUT microcontroller ADC. The detector output is rail-to-rail. DS22186B-page 6 ) 2.10 Inputs for Output Detector (V DETOUT V DET- ) for driving the The non-inverting and inverting inputs for the amplifier/filter op amp ...
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... APPLICATIONS The MCP2036 is an Analog Front End device that uses the electromagnetic interaction between a conductive target and a sensing coil to detect the pressure applied by the user on the surface of a touch panel. The device incorporates all analog blocks for a simple inductor impedance measurement circuit. ...
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... Key Coils LREF FIGURE 3-3: MCP2036 Typical Application ® The PIC microcontroller is used to generate a square wave signal and to do all the necessary operations for proper detection of the key press event. Then filter converts the square wave output the PWM into a quasi-triangular waveform ...
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... Substituting in the equation for an RC network: EQUATION 3- ⁄ ΔV ) • [ – ( 2Δ – exp DD ⎛ ⎞ t – 1 – exp ----------------- - ⎝ ⎠ ΔV • = ---------- - ------------------------------------------ - ⎛ ⎞ – exp ----------------- - ⎝ ⎠ © 2009 Microchip Technology Inc. ⁄ MCP2036 DS22186B-page 9 ...
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... MCP2036 The peak-to-peak amplitude of the resulting triangular waveform, at the coil driver input, is shown in Equation 3-5: EQUATION 3- 2ΔV PKPK ⎛ t – 1 – exp ----------------- - ⎝ • ------------------------------------------ - PKPK DD ⎛ t – exp ----------------- - ⎝ should not exceed specified value Note: PKPK (600mV) for best performance ...
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... V +20 — — — — MCP2036 = GND. SS Conditions +2.7V, (Note +5.5V, (Note +2.7V, DD DRVIN = 0V, CLK = Low V = +5.5V DD DRVIN = 0V, CLK = Low V = +2.7V, DD CLK = 2 MHz V = +5.5V DD CLK = 2 MHz ...
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... MCP2036 TABLE 4-1: DC CHARACTERISTICS (CONTINUED) Electrical Specifications: Unless otherwise indicated, T Parameters Sym. Short Circuit Current I SC — Voltage Reference Specific Parameters Output Voltage V REF Output Short Circuit Current I SC — Maximum Output Capacitance C OUT Series Output Resistance R SER Coil Driver Specific Parameters ...
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... V = GND Min. Typ. Max. — 2 — — 50 — — — 1— — MCP2036 Units Conditions °C °C °C °C °C/W °C/W °C/W Units Conditions MHz % µs Time from CS valid V output (Note 1) DETOUT µs Time from CS High-Z ...
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... MCP2036 NOTES: DS22186B-page 14 © 2009 Microchip Technology Inc. ...
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... TYPICAL PERFORMANCE CURVES 5.1 Performance Plots FIGURE 5-1: Driver Input Waveforms © 2009 Microchip Technology Inc. MCP2036 DS22186B-page 15 ...
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... MCP2036 FIGURE 5-2: Inductor Driver Transfer Function (Rload = 100 Ohm) FIGURE 5-3: Pulsed Voltage on Active Key Inductor (I/O Configuration) DS22186B-page 16 © 2009 Microchip Technology Inc. ...
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... FIGURE 5-4: Pulsed voltage on Reference Inductor Series with Active Inductor © 2009 Microchip Technology Inc. MCP2036 DS22186B-page 17 ...
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... MCP2036 FIGURE 5-5: Output Detector Response Time DS22186B-page 18 © 2009 Microchip Technology Inc. ...
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... In the event the full Microchip part number cannot be marked on one line, it will Note: be carried over to the next line, thus limiting the number of available characters for customer-specific information. © 2009 Microchip Technology Inc. MCP2036 Example MCP2036-I/P 0610017 Example MCP2036 -I/SL 0610017 Example MCP2036 -I/MG 0610017 DS22186B-page 19 ...
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... MCP2036 6.2 Package Details The following sections give the technical details of the packages. /HDG 3ODVWLF 'XDO ,Q /LQH 3 ± 1RWH N NOTE 1RWHV DS22186B-page 20 PLO %RG\ >3', © 2009 Microchip Technology Inc. ...
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... N NOTE 1RWHV © 2009 Microchip Technology Inc. PP %RG\ >62,& φ MCP2036 h α c β DS22186B-page 21 ...
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... MCP2036 1RWH DS22186B-page 22 © 2009 Microchip Technology Inc. ...
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... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging © 2009 Microchip Technology Inc. MCP2036 DS22186B-page 23 ...
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... MCP2036 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS22186B-page 24 © 2009 Microchip Technology Inc. ...
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... APPENDIX A: REVISION HISTORY Revision A (05/2009) Original release of the document. Revision B (09/2009) Replaced the 4X4 QFN Package with the 3X3 QFN Package; Replaced ML with MG in the 16-Lead QFN Example; Added SOIC (SL) Land Pattern. © 2009 Microchip Technology Inc. MCP2036 DS22186B-page 25 ...
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... MCP2036 NOTES: DS22186B-page 26 © 2009 Microchip Technology Inc. ...
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... Temperature E = -40°C to +125°C Range QFN Package SOIC P = PDIP QTP, SQTP, Code or Special Requirements Pattern: (blank otherwise) © 2009 Microchip Technology Inc. XXX Examples: Pattern MCP2036 - I/P 301 = Industrial temp., PDIP package, QTP pattern #301. (Industrial) (Extended) MCP2036 DS22186B-page 27 ...
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... MCP2036 NOTES: DS22186B-page 28 © 2009 Microchip Technology Inc. ...
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Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families ...
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