MAXIM Manuals (Others)

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This document introduces the characteristics of the MAX14550E USB host charger identification analog switch.

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The MAX14508E–MAX14511E/MAX14509AE are high-ESD-protected DPDT switches that multiplex Hi-Speed (480Mbps) USB and analog signals such as AC-coupled audio or video. These devices combine the low on-capacitance (CON) and low on-resistance (RON) necessary for high-performance switching applications in portable electronic devices, and include an internal negative supply to pass audio signals that swing below ground (down to VCC - 5.0V). The MAX14508E–MAX14511E/MAX14509AE also handle USB low-/full-speed signaling and operate from a +2.7V to +5.0V supply. The MAX14508E–MAX14511E feature +5.5V fault protection on COM1 and COM2, making these devices compliant with the USB 2.0 fault-protection specification. The MAX14510E/MAX14511E feature a VBUS detection input (VB) to automatically switch to the USB signal path upon detection of a valid VBUS signal. The MAX14508E/ MAX14510E feature internal shunt resistors on the audio path to reduce clicks and pops heard at the output. The MAX14508E/MAX14509E/MAX14509AE have an enable input (EN) to reduce supply current and set all channels to high impedance when driven low. The MAX14508E–MAX14511E/MAX14509AE are available in a space-saving, 10-pin, 1.4mm x 1.8mm UTQFN package, and operate over the -40°C to +85°C temperature range.

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The MAX14578E/MAX14578AE are USB charger detectors compliant with USB Battery Charging Revision 1.1. They detect USB standard downstream ports (SDPs), USB charging downstream ports (CDPs), or dedicated charger ports (DCPs), and control an external lithium-ion (Li+) battery charger. The devices implement USB Battery Charging Revision 1.1-compliant detection logic including data contact detection, D+/D- short detection, charging downstream port identification, and optional USB dead-battery charging support. The MAX14578AE features an enable (EN) input and an LDO output. In addition, the internal USB switch is compliant to Hi-Speed USB, full-speed USB, and low-speed USB signals. The devices feature low on-resistance, low on-resistance flatness, and very low capacitance. The devices also feature high-ESD protection up to Q15kV Human Body Model on the CD+ and CD- pins. In addition, the MAX14578E/MAX14578AE feature Apple and Sony charge.

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MAX14585/MAX14585A are high-performance USB and audio switches with negative signal capability and high-voltage VBUS detection from Maxim Integrated.

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This data sheet introduces the characteristics of MAX14760/MAX14762/MAX14764 series low leakage current analog switches, including working voltage range, signal range, switch resistance, switch current, etc.

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MAX14759/MAX14761/MAX14763 are analog switches from Maxim Integrated Products. They can pass bipolar signals beyond their supply rails. They operate from a single +3.0V to +5.5V supply and support signals in the -25V to +25V range. MAX14759 is a single-pole/single-throw (SPST) analog switch, while the MAX14761 is a dual-SPST analog switch. The MAX14763 is a single-pole/double-throw (SPDT) analog switch. They feature 1Ω (max) on-resistance with a Q200nA (max) on-leakage current. The MAX14759/MAX14763 feature 2Ω (max) on-resistance with a Q100nA (max) on-leakage current. Their bandwidth is 5.1MHz. They are available in an 8-pin TDFN package. They are specified over the -40°C to +85°C extended temperature range.

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The MAX13335E/MAX13336E are high-fidelity stereo audio input amplifiers designed for automotive applications requiring audio-level detection and/or jack sensing capability.

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MAX13325/MAX13326 are dual automotive audio line drivers with I2C control and diagnostic capabilities, providing a reliable differential interface between automotive audio components. They feature differential inputs and outputs, integrated output diagnostics, and can be controlled using an I2C interface or operate in standalone mode. The outputs can deliver up to 4VRMS signals with a fixed gain of 12dB or 0dB. The output diagnostics report conditions on a per channel basis, including short to GND, short to battery, overcurrent, overtemperature, and excessive offset. The output amplifiers can drive capacitive loads up to 4nF. MAX13325/MAX13326 are designed for automotive applications and can operate in a temperature range of -40°C to +105°C.

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The MAX5408-MAX5411 are dual, logarithmic taper digital potentiometers from Texas Instruments, each with 32 tap points, which replace mechanical potentiometers in audio applications requiring digitally controlled resistors. The MAX5408/MAX5410 are dual potentiometers with one wiper per potentiometer, while the MAX5409/MAX5411 are dual potentiometers with two wipers per potentiometer. An SPI-compatible serial interface controls the wiper positions. The MAX5408-MAX5411 have a factory-set resistance of 10k ohms per potentiometer. A zero-crossing detect feature minimizes the audible noise generated by wiper transitions. The MAX5408-MAX5411 have nominal temperature coefficients of 35 ppm/°C end-to-end and 5 ppm/°C ratiometric. The MAX5408-MAX5411 are available in 16-pin QSOP and 16-pin thin QFN packages and are specified over the extended temperature range (-40°C to +85°C). Applications include stereo volume control, fading and balancing stereo signals, and mechanical potentiometer replacement.

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The MAX5407 is a 32-point audio logarithmic taper digital potentiometer with a resistance from 10kΩ to 1MΩ, 1dB resolution, and single supply of 2.7V-5.5V and 0.35uA static current

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The MAX5440 is an integrated circuit from Texas Instruments. It is a volume controller that supports 40kΩ resistors and has an LED indicator. It can be used for stereo volume control, desktop speakers, multimedia docking stations, set-top boxes and automotive back-seat multimedia.

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The MAX5486 dual 40kΩ logarithmic taper volume control features a debounced pushbutton up/down interface that controls volume and balance in audio applications. Each potentiometer has 32 log-spaced tap points with a buffered wiper output to replace mechanical potentiometers. An integrated bias generator provides the required ((VDD + VSS) / 2) bias voltage, eliminating the need for costly external op-amp circuits in unipolar audio applications. A mode-indicator LED output indicates volume or balance control. Five integrated LED drivers indicate volume level or balance settings, depending on the status of the mode indicator. Use the MAX5486 digital inputs with momentary contact single-pole/single-throw (SPST) pushbutton switches. Each input includes internal debounced circuitry and a pullup resistor to VLOGIC. The MAX5486 advances the wiper setting once per button push. Maxim’s proprietary SmartWiper™ control eliminates the need for a microcomputer to increase the wiper transition rate. The accelerated auto-advance feature provides a wiper-changing rate at 4Hz for holding the control input low for more than 250ms and at 8Hz after 500ms and then at 11Hz after 1000ms (see Table 2). All of the MAX5486’s pushbutton inputs are debounced. The mute input allows a single pushbutton to change between volume control and the -90dB (typ) mute setting. The mode input toggles between volume and balance control. The click-and-pop suppression feature min

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The DS1847 is a dual temperature-controlled nonvolatile variable resistor consisting of two 256-position linear variable resistors. The product includes two 10kΩ, 256-position resistors and one 10kΩ, 256-position resistor, incorporating a direct-to-digital temperature sensor. The settings of the variable resistors are stored in EEPROM memory and can be accessed over the 2-wire serial bus. The value of each variable resistor is determined by a temperature-addressed look-up table, which can assign a unique value to each resistor for every 2°C increment over the -40°C to +95°C range. The output of the digital temperature sensor is also available as a 13-bit, 2’s complement value over the serial bus.

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The MAX9892 is an audio click-and-pop eliminator for portable multimedia devices. It operates from a 1.7V to 3.6V supply, connects to the output of the existing system amplifier and provides a low-impedance path to ground during startup and shutdown. The inputs INL and INR accept voltage swings from VDD to 5.5V below VDD. See the Setting the Supply Voltage section for more information. The power-up and power-down transients are shunted to ground to prevent clicks and pops from becoming audible. The MAX9892 features two low-impedance analog switches controlled by MUTE that opens and closes the switches. The switches are open during normal operation and have no impact on the output signal. During startup and shutdown of the amplifier, the MAX9892 can be activated to short the outputs to ground and prevent clicks and pops from pulling current through the headphones. The MAX9892 is available in 6-bump UCSP (1mm x 1.52mm x 0.6mm) and 6-pin µDFN (2mm x 2mm x 0.75mm) packages. The MAX9892 is specified over the -40°C to +85°C temperature range.

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The MAX4465-MAX4469 are micropower op amps optimized for use as microphone preamplifiers. They provide the ideal combination of an optimized gain bandwidth product vs. supply current, and low voltage operation in ultra-small packages. The MAX4465/ MAX4467/MAX4469 are unity-gain stable and deliver a 200kHz gain bandwidth from only 24µA of supply cur- rent. The MAX4466/MAX4468 are decompensated for a minimum stable gain of +5V/V and provide a 600kHz gain bandwidth product. In addition, these amplifiers feature Rail-to-Rail® outputs, high AVOL, plus excellent power-supply rejection and common-mode rejection ratios for operation in noisy environments. The MAX4467/MAX4468 include a complete shutdown mode. In shutdown, the amplifiers’ supply current is reduced to 5nA and the bias current to the external microphone is cut off for ultimate power savings. The single MAX4465/MAX4466 are offered in the ultra-small 5-pin SC70 package, while the single with shutdown MAX4467/MAX4468 and dual MAX4469 are available in the space-saving 8-pin SOT23 package.

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This document describes the features of the MAX9814 audio amplifier.

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The MAX9856 is a high-performance, low-power stereo audio CODEC designed for MP3, personal media players (PMPs), or other portable multimedia devices. Using on-board stereo DirectDrive® headphone amplifiers, the CODEC can output 30mW into stereo 32Ω headphones while operating from a single 1.8V power supply. Very low 9mW playback power consumption makes it an ideal choice for battery-powered applications. The MAX9856 provides microphone input amplifiers, plus flexible input selection, signal mixing, and automatic gain control (AGC). Comprehensive load-impedance sensing allows the MAX9856 to autodetect most common audio and audio/video headset and jack plug types. Outputs include stereo DirectDrive line outputs and DirectDrive headphone amplifiers. The stereo ADC can convert audio signals from either internal or external microphones that can be configured for single-ended or differential signal inputs. Line inputs can be configured as stereo, differential, or mono and fed through one channel of the microphone path. The analog inputs selected can be gain ranged or mixed with other input sources prior to conversion to digital. The ADC path also features programmable digital highpass filters to remove DC offset voltages and wind noise. The MAX9856 supports all common sample rates from 8kHz to 48kHz in both master and slave mode. The serial digital audio interfaces support a variety of formats including I2S, left-justified, and PCM modes. The MAX9856 is a leading low-power, high-performance stereo audio CODEC that is ideal for MP3 players, portable audio products, and other portable devices.

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The MAX97002 is an integrated audio subsystem with mono Class D speaker and Class H headphone amplifiers. The speaker amplifier supports 700mW output power and the headphone amplifier supports 2.5V headphone output. It supports low power shutdown mode and uses 2-wire I2C interface for control.

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