MAXQ7667AACM/V+T Maxim Integrated Products, MAXQ7667AACM/V+T Datasheet
MAXQ7667AACM/V+T
Specifications of MAXQ7667AACM/V+T
Related parts for MAXQ7667AACM/V+T
MAXQ7667AACM/V+T Summary of contents
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... Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be simultaneously available through various sales channels. For information about device errata, go to: ww.maxim-ic.com/errata. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’ ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System ABSOLUTE MAXIMUM RATINGS DVDDIO, GATE5, REG3P3, REG2P5 to DGND ................................................................-0.3V to +6.0V AVDD to AGND .....................................................-0.3V to +4.0V DVDD to DGND .....................................................-0.3V to +3.0V DVDDIO to DVDD..................................................-0.3V to +6.0V AVDD to DVDD......................................................-0.3V to +4.0V ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System ELECTRICAL CHARACTERISTICS (continued +5V +3.3V; V DVDDIO AVDD DVDD ( 50kHz 1µF in parallel with 0.01µF, f BPF REFBG REF otherwise specified. Typical values ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System ELECTRICAL CHARACTERISTICS (continued +5V +3.3V; V DVDDIO AVDD DVDD ( 50kHz 1µF in parallel with 0.01µF, f BPF REFBG REF otherwise specified. Typical values ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System ELECTRICAL CHARACTERISTICS (continued +5V +3.3V; V DVDDIO AVDD DVDD ( 50kHz 1µF in parallel with 0.01µF, f BPF REFBG REF otherwise specified. Typical values ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System ELECTRICAL CHARACTERISTICS (continued +5V +3.3V; V DVDDIO AVDD DVDD ( 50kHz 1µF in parallel with 0.01µF, f BPF REFBG REF otherwise specified. Typical values ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System ELECTRICAL CHARACTERISTICS (continued +5V +3.3V; V DVDDIO AVDD DVDD ( 50kHz 1µF in parallel with 0.01µF, f BPF REFBG REF otherwise specified. Typical values ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System ELECTRICAL CHARACTERISTICS (continued +5V +3.3V; V DVDDIO AVDD DVDD ( 50kHz 1µF in parallel with 0.01µF, f BPF REFBG REF otherwise specified. Typical values ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System (V = +5V +3.3V, V DVDDIO AVDD DVDD unless otherwise noted.) BURST OUTPUT FREQUENCY vs. TEMPERATURE 50.05 USING PLL 50.04 50.03 50.02 50.01 50.00 49.99 49.98 49.97 49.96 49.95 -50 -25 0 ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System (V = +5V +3.3V, V DVDDIO AVDD DVDD unless otherwise noted.) SAR ADC GAIN ERROR vs. TEMPERATURE 3.0 2 3.3V AVDD 2 AVDD 1 3.6V ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System (V = +5V +3.3V, V DVDDIO AVDD DVDD unless otherwise noted.) DVDDIO REGULATOR OUTPUT VOLTAGE vs. LOAD CURRENT 5.5 5.0 DRAIN = 14V 4.5 DRAIN = 8V 4.0 3.5 EXTERNAL VOLTAGE SOURCE ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System PIN NAME Port 1 Data 3/JTAG Serial Clock Input. P1 general-purpose digital I/O. TCK is the JTAG 1 P1.3/TCK serial test clock input. Refer to the MAXQ7667 User’s Guide Sections 5 and ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System PIN NAME Crystal Oscillator Output. Connect an external crystal or resonator between XIN and XOUT. Leave 21 XOUT XOUT unconnected when driving XIN with a 2.5V level clock or when an external clock source ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System TRANSDUCER BURST ENABLE BURST 0.01µF 470pF 0V 2mV 0.01µF ECHON 470pF ECHOP BSP129 DVDDIO 0.1µF GATE5 REG3P3 AVDD 0.1µF REG2P5 +8V TO +20V DVDD V+ 0.1µF DGND GND GPIO/JTAG INTERFACE P0.0/URX Rx MODULE LIN ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System Detailed Features o Smart Analog Peripherals Dedicated Ultrasonic Burst Generator Echo Receiving Path Low-Noise Amplifier Time Variable Gain Amplifier 16-Bit Sigma-Delta ADC Digital Bandpass Filter Full-Wave Rectifier and Digital Lowpass Filter 8-Deep, 16-Bit Wide ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System Detailed Description The ultrasonic distance-measurement peripherals in the MAXQ7667 include a burst signal generator for acoustic transmission and mixed signal circuits for amplifying and digitizing echo signals ranging between 25kHz and 100kHz. The burst ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System Echo Receive Path Low-Noise Amplifier (LNA) The LNA provides a 40V/V fixed gain to the input signal. The differential inputs of the LNA are ECHOP and ECHON. For proper biasing of the LNA, AC-couple ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System The MAXQ7667 features a 16-bit sigma-delta ADC with an analog gain adjustable from 38dB to 60dB (includ- ing the fixed LNA gain) with a maximum gain step of 12.5% (typical). Gain changes settle within ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System output to the FIFO automatically each time the lowpass filter output updates, through the control of one of the timer outputs, or through software. The device includes a FIFO depth counter with programmable interrupt ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System SAR ADC Analog Input Track-and-Hold (T/H) Figures 6 and 7 show the equivalent input circuit of the MAXQ7667 analog input architecture. During acquisi- tion (track), a sampling capacitor charges to the posi- tive input ...
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... The MAXQ7667 supports the following master clock sources: • Internal high-frequency oscillator drives an exter- nal 1MHz–16MHz crystal or ceramic resonator MAXQ is a registered trademark of Maxim Integrated Products, Inc. ______________________________________________________________________________________ • Internal, fast-starting, 13.5MHz RC oscillator (default oscillator at startup and in the event the external crystal fails) ® ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System SCNT.0:STIME SCNT.11:STDIV2 PROGRAMMABLE SYSTEM DIVIDE BY CLOCK ..., 128 P1.7/SYNC SCNT.8:SSYNC_EN CLR Figure 8. Schedule-Timer Module Block Diagram CAPTURE INPUT CONDITIONING CLOCK SCALING GATING Figure 9. Type 2 Timer/Counter in 16-Bit ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System The joint test action group (JTAG) IEEE 1149.1 standard defines a unique method for in-circuit testing and pro- gramming. The MAXQ7667 conforms to this standard, implementing an external test access port (TAP) and internal ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System The following four digital I/Os form the TAP interface: • TDO—Serial output signal for test instruction and data. Data transitions on the falling edge of TCK. TDO idles high when inactive. TDO serially trans- ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System SHIFT SS SCLK CKPOL/CKPHA 0/1 OR 1/0 SCLK CKPOL/CKPHA 0/0 OR 1/1 MOSI MISO Figure 11. SPI Timing Diagram in Master Mode SHIFT t SSE SS SCLK CKPOL/CKPHA 0/1 OR 1/0 SCLK CKPOL/CKPHA 0/0 ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System MAXQ7667 PD0._ MUX SF DIRECTION SF ENABLE PR0._ PO0._ MUX SF OUTPUT PS0._ PI0 INPUT FLAG Figure 13. Port 0 Digital I/O Basic Circuitry. Port 1 Circuitry is the Same as Port ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System not externally forced low. An internal POR flag indicates the source of a reset. Ramp up the DVDD supply at a minimum rate of 60mV/ms to keep the device in POR until DVDD fully ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System memory. Access physical memory segments (other than the stack and register memories) as either pro- gram memory or data memory, but not both at once. By default, the memory is arranged in a Harvard ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System the application code executes. The application codes initiate reprogramming. If the password is not set, the MAXQ7667 monitors the UART for an autobaud char- acter (0x0D). If this character is received, the device sets ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System Table 1. System Register Map REGISTER INDEX AP (8h) A (9h APC 2h — 3h — 4h PSF IMR 7h — — Ah — A[10] ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System ______________________________________________________________________________________ 31 ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System Table 3. Peripheral Register Map REGISTER INDEX M0 (0h) 0h PO0 1h PO1 2h — 3h EIF0 4h EIF1 5h — 6h — 7h — 8h PI0 9h PI1 Ah — Bh EIE0 Ch ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System ______________________________________________________________________________________ 35 ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System 36 ______________________________________________________________________________________ ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System 38 ______________________________________________________________________________________ ...
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RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System Applications Information Development and Technical Support A variety of highly versatile, affordably priced develop- ment tools for this µC are available from Maxim and third-party suppliers, including: – Compilers – Evaluation kit – Integrated ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 40 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2009 Maxim Integrated Products DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc ...