SONOMA (MAXREFDES14#): Isolated Power Measurement Subsystem Reference Design

The Sonoma (MAXREFDES14#) subsystem reference design performs accurate AC energy measurement while utilizing a unique, low-cost galvanic isolation architecture. The Sonoma meets the high-accuracy and low-cost needs of energy-measurement applications. This small form-factor design is available for purchase. Hardware, firmware design files, and lab measurements provide complete system information for rapid prototyping and development.

Schematic PCB

REP008: Dual-band front-end IC operating at universal 85MHz low IF for CDMA, PCS and AMPS

This reference design (RD) is for a dual-band, triple-mode front-end IC using only 85MHz IF centers for processing PCS, cellular CDMA, and cellular AMPS. The RD uses the MAX2323, a low-noise amplifier (LNA) with mixer, that is useful for TDMA, GSM, EDGE, and WCDMA applications.

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REP001: Achieving the best balance of IIP3 and gain for AMPS FM mixers

This reference design (RD) for an RF mixer in the FM (AMPS) signal path custom tunes the output matching circuit to optimize the trade-off between IIP3 and the highest gain. The design features the MAX2324 low-noise amplifier (LNA) with RF mixer for cellular-band CDMA, TDMA, GMS, and EDGE applications.

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CN0104

ATE application parameter measurement unit and supporting devices using PMU AD5522 and 16-bit ADC AD7685

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MAX2165 DMB-TH USB Dongle Reference Design

This compact USB dongle design combines a MAX2165 direct-conversion tuner and a DMB-TH demodulator. The design converts a UHF signal (470MHz to 858MHz) to a MPEG-2 transport stream. Then the USB interface enables video viewing on a laptop or desktop computer.

REP023: Upconverter from 350MHz to 3.5GHz with 9dB gain and 1.3dBm IIP3

This reference design (RD) shows how a downconverter with selectable LO doubler can be used as an upconverter. The RD achieves 9dB gain and 1.3dBm IIP3. The MAX2683 low-power downconverter designed to operate in the receive path of 3.5GHz wireless data transceivers is featured. Schematics, test setup, BOM, and performance results are shown.

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CN0133

Detecting low-g acceleration using the ADuC7024 precision analog microcontroller and the ADXL345 digital accelerometer

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CN0102

Implement precision electronic scale design using the 24-bit Σ-Δ ADC AD7190 with built-in PGA

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CN0119

Implement precision electronic scale design using AD7192, a 24-bit Σ-Δ ADC with built-in PGA

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MAXREFDES1213: Smart electronic load using the MAX32630FTHR and MAX11311

The MAXREFDES1213 is a reference design showcasing the MAX32630FTHR and MAX11311, as well as several other Maxim products, that demonstrates a small size, low-cost, portable electronic load (E-load) for testing power converters and PMICs.

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CN0219

^{Adopt ADAV801/ADAV803 audio codec to implement S/PDIF and I 2} S interface with SigmaDSP codec

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CN0108

Implement electronic scale design using the 20-bit Σ-Δ ADC AD7781 with built-in PGA

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CN0105

16-bit 10 MSPS ADC AD7626 single-ended to differential high-speed drive circuit

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CN0269

18-bit, 1.33 MSPS, 16-channel data acquisition system

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CN0251

24-bit, 4.7 Hz, 4-channel analog data acquisition system

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A digital signal generator based on AD9850

Digital signal generator based on AD9850 

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CN0243

High dynamic range RF transmitter signal chain with external single frequency reference for DAC sampling clock and IQ regulator local oscillator generation

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CN0205

I/Q modulator ADL5375 interfaces with dual-channel, 1.2 GSPS high-speed DAC AD9122

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CN0245

Wideband LO PLL frequency synthesizer with simple interface to quadrature demodulator

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Four-channel radio remote control schematic diagram

Four-channel radio remote control schematic diagram

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