MAXREFDESGPS_B: How to add GPS to your product without draining your battery

The GPS reference design is an evaluation kit designed to demonstrate the essential features of an ultra-low power GPS (global positioning system) receiver, as well as serving as a reference design to illustrate how to implement such a receiver rapidly. The reference design uses the MAX2769C L1-band GNSS RF front end IC (RFIC) from Maxim Integrated, and the ultra-low power GPS baseband processing firmware provided by Baseband Technologies Inc. (BTI) that runs on a MAX32632 microcontroller unit (MCU).

Wearable device power supply reference design for wireless charging using bq51003 and bq25120

Wearable devices require advanced power management to keep batteries running for extended periods of time while enabling always-on functionality. In addition, the device needs to use small rechargeable batteries and support a small form factor design. This application note shows how to implement a scalable power management solution for wearable devices that can be customized for activity monitors or smart watches. This design features a Li-ion battery charger and low quiescent current (Iq) DC/DC buck and boost converters for PMOLED displays, a boost converter for heart rate monitors (HRM) and a second Configured with low Iq DC/DC buck, it provides wireless charging input and highly configurable battery management solution.

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CN0205

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

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CN0140

High-Performance, Dual-Channel IF Sampling Receiver

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CN0134

Broadband low EVM direct conversion transmitter

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CN0238

High performance, 12-bit, 500 MSPS wideband receiver with anti-aliasing filter

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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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CN0245

Wideband LO PLL frequency synthesizer with simple interface to quadrature demodulator

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CN0259

High-performance 65 MHz bandwidth quad-channel IF receiver with anti-aliasing filter and 184.32 MSPS sampling rate

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CN0232

Minimize frequency synthesizer spurious output from integrated VCO and external PLL circuitry

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CN0239

Broadband 6 GHz active mixer with seamless LO interface

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CN0248

IQ demodulator-based IF to baseband receiver with variable IF and baseband gain and programmable baseband filtering

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CN0283

Provides fixed power gain at the output of the IQ modulator

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CN0285

Wideband Low Error Vector Magnitude (EVM) Direct Conversion Transmitter

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CN0290

Extending the low-frequency range of high-performance phase-locked loops

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CN0294

Increase the number of clock source outputs using low-jitter LVPECL fanout buffers

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CN0311

Wideband low error vector magnitude (EVM) direct conversion transmitter using LO divide-by-2 modulator

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CN0320

IQ demodulator-based IF to baseband receiver with variable IF and baseband gain and programmable baseband filtering

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CN0340

True RMS RF detector with 95 dB detection range

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CN0187

Crest factor, peak and rms RF power measurement circuit optimized for high speed, low power and single 3.3 V supply

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