900MHz full-duplex wireless transmitter reference design

This reference design covers the design of a transmitter inside a 900MHz full-duplex radio using the MAX2902 single-chip transmitter. The MAX2902 is designed for use in the 868MHz to 915MHz frequency band, and complies with FCC CFR47 part 15.247 902MHz to 928MHz ISM band specifications. The reference design is capable of delivering more than +19dBm with V _CC = 2.9V and I _CC = 170mA, and +20dBm with V _CC = 3.3V and I _CC = 190mA, while meeting 14dB of CNR (1.22Mbps BPSK) at 10:1 VSWR (all angles).

Designing robust, fault-tolerant motion control feedback systems

This article reviews basic servo systems and development of the fault-tolerant feedback systems for servo systems. Controller receiver circuit design, proper PC-board receiver circuit layout, and the encoder's signal cable and termination are discussed. Additionally, various types of industrial feedback encoders are presented, along with the various types of faults that can develop in a servo feedback system.

CN0171

Low noise, low distortion single-ended input driver circuit for differential input IF sampling ADC

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CN0285

Wideband Low Error Vector Magnitude (EVM) Direct Conversion Transmitter

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802.11b/g RF front-end module reference design using the MAX2830

This module uses the highly integrated MAX2830 RF transceiver. It is a complete RF front-end solution that meets the WLAN IEEE^SM 802.11b/g standard. The transmitter can deliver more than 15dBm Tx power at EVM < 5.6% with a 54Mbps OFDM 802.11g signal. The receiver can provide an IQ signal EVM < 9% with a -74.5dBm 54Mbps OFDM 802.11g signal.

MAX3541 DVB-T/PAL Tuner

The MAX3541 is an integrated, single-conversion terrestrial tuner IC for DVB-T and PAL. The device is designed to convert input signals in the VHF-Low, VHF-High, and UHF bands to an IF frequency of 36MHz. The MAX3541 is designed for television, analog/digital terrestrial receiver, and digital set-top box applications.

REP019: Dual-band front-end CDMA IC tuned to a single 110MHz IF

This application note assesses a tuned, dual-band, front-end CDMA IC with single 110MHZ IF. Focus is on the MAX2322, a low-noise amplifier (LNA) for dual-band CDMA cell-phone handsets. The MAX2323 can also be used in dual-band TDMA, GSM, EDGE, or WCDMA applications.

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REP014: CDMA PA output power +28.5dBm provides -45dBc ACPR

This reference design (RD) shows how a CDMA PA, the MAX2265, provides -45dBc ACPR at +28.5dBm. Low-cost cellular CDMA power amplifier has good linearity and power-added efficiency for US cellular-band IS-95-based CDMA , PDC, and IS-136-based TDMA modulation formats. Schematics and performance data are shown.

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CN0311

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

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Choosing the Right 1-Wire Host for Your Embedded Application

This application note presents four categories of 1-Wire master circuits for embedded applications and discusses their capabilities and requirements in relation to available (ie, unused) system resources. The schematics shown here apply to short networks that do not extend beyond the radius of 1 meter and are populated with a small number of 1-Wire slaves. Instructions and a decision worksheet are included to identify the most cost-effective 1-Wire master for the application. The reader should be familiar with the basics of 1-Wire communication and microcontrollers.

MAX2120 DVB-S Half-NIM Tuner Reference Design

This reference design is a commercial Half-NIM DVB-S tuner that uses Maxim's MAX2120 satellite tuner IC. The reference design connects to the motherboard through a 12-pin connector. The downconverted satellite signal from the LNB is supplied to an active, discrete loop-through, which splits the signal into two paths. One signal goes to the MAX2120 and the other provides an additional output from the STB.

MAX2160 ISDB-T Reference Design

This reference design for the MAX2160 tuner plus demodulator IC demonstrates a compact daughter-board solution for the ISDB-T standard (single-segment). This design converts UHF band signals (470MHz to 770MHz) to a MPEG-2 transport stream. The solution is intended for portable applications, such as cell-phone TVs and PDAs.

MAX2769 GPS Reference Design

This reference design is a complete RF front-end solution for a GPS receiver using Maxim's MAX2769 GPS receiver chip. The MAX2769 is a low cost, single conversion, low IF GPS receiver that offers two integrated LNAs with different specifications, I/Q channel filters with variable bandwidth and order, and a digital IF output that supports 1-bit and 2-bit operation. This reference design offers high performance, small size, and low BOM cost.

LFRD004: MAX7032 Transceiver Reference Design

This reference design provides a complete demonstration platform for using industrial/scientific/medical radio frequency (ISM-RF) products in a 2-way remote control (RC) application. This document includes the hardware, firmware, and system structure requirements for implementing a simple 2-way RC design.

Motor control system based on ADSP-CM408

For motor control systems, ADI can provide complete solutions covering all important devices in the signal chain. Related products include analog-to-digital/digital-to-analog converters, amplifiers, embedded processors, iCoupler® digital isolators and power management devices. These high-performance devices and increased system integration help achieve newer topology designs and bring value to customers' differentiated system designs.

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REP015: Tuning dual-channel CDMA PA to achieve high linearity

This reference design (RD) shows how a cellular-band, CDMA linear power amplifier (PA) can be tuned for high linearity and narrowband CDMA. This RD features the MAX2264 RF power amplifier which is designed for IS-98-based CDMA, PDC , and IS-136 TDMA. Schematics and test setup are shown.

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CN0144

Using LO two-way modulator to build a wideband low-EVM direct conversion transmitter

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CN0340

True RMS RF detector with 95 dB detection range

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Motor current detection system solution based on ADSP-CM408 and AD7403

For small and medium power motor applications, the EPSH-MPC development platform provides current sampling of the isolated analog-to-digital converter AD7403. The external current loop is converted into a corresponding shunt voltage through a shunt resistor and input to the voltage test terminal of the AD7403. The AD7403 outputs according to the clock signal given by CM408F. ADC bit stream, CM408F enables the built-in SINC filter on the input bit stream to calculate the corresponding 16-bit ADC value, and stores the data into the corresponding ring queue through DMA. The host computer software can use the UART-USB port Or obtain the display of data samples through the RS485 port, you can intuitively see the acquisition effect of AD7403, and the collected data can be stored in an excel table to facilitate corresponding analysis of the data.

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CN0147

Utilizing the ADP150 low-noise LDO regulator to power the ADF4350 PLL and VCO to reduce phase noise

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