MAXIM Manuals

The MAX4991-MAX4994 are low on-resistance analog switches that operate from a single +1.8V to +5.5V supply. Their features include a slow turn-on time to reduce clicks and pops caused by coupling capacitors and audio amplifiers with a DC output bias. This feature provides click-and-pop reduction without adding additional parts for existing architectures. The MAX4991-MAX4992 are dual single-pole/double-throw (SPDT) switches, while the MAX4993-MAX4994 are double-pole/double-throw (DPDT) switches. The MAX4993-MAX4994 feature an active-low enable input (EN) that sets all the channels to high impedance and reduces supply current when driven high. These devices have 0.3Ω on-resistance and 0.004% THD+N to route high fidelity audio signals. The MAX4991-MAX4994 are available in space-saving 10-pin UTQFN (1.4mm x 1.8mm) package, and are specified for operation over the -40°C to +85°C extended temperature range.

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The MAX14504/MAX14505/MAX14505A/MAX14506 are dual single-pole/double-throw (SPDT) audio switches with negative signal capability that allows signals from -VCC to +VCC to pass without distortion. They feature high continuous current ratings of 550mA (continuous) and 850mA (pulsed). These analog switches have low on-resistance, low supply current, and operate from a single +2.3V to +5.5V supply. The MAX14505/MAX14505A have internal shunt switches that discharge the audio amplifier AC-coupling capacitance at the normally open (NO) terminals. This reduces click-and-pop sounds that occur when switching audio signals between precharged points. The MAX14504/ MAX14505/MAX14505A/MAX14506 control the switches with control bit, CB, and feature an enable input, EN, that place COM in a high-impedance mode. The MAX14504/MAX14505/MAX14505A/MAX14506 are fully specified to operate from a single +2.3V to +5.5V power supply. These devices are available in a 1.56mm x 2.14mm, 12-bump WLP package, and operate over the -40°C to +85°C extended temperature range.

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The MAX14531E–MAX14534E high ESD-protected DP3T switches multiplex Hi-Speed (480 Mbps) USB signals, low/full-speed USB signals, and analog sig- nals such as AC-coupled audio or video through any of three channels. These devices combine the low on- capacitance (CON) and low on-resistance (RON) nec- essary for high-performance switching applications in portable electronics, and include an internal negative supply to pass AC-coupled audio signals that swing below ground (down to -2.0V). The MAX14531E– MAX14534E operate from a +2.7V to +5.5V supply. The MAX14531E–MAX14534E have a shutdown func- tion to reduce supply current and set all channels to high impedance. The MAX14531E–MAX14534E feature a VBUS detection function through the CB0 input to automatically switch to the default USB signal path upon detection of a valid VBUS signal. The MAX14532E/MAX14534E feature internal shunt resis- tors on audio channels to reduce clicks and pops heard at the output. The MAX14531E–MAX14534E are available in a space- saving, 12-bump, 1.5mm x 2.0mm WLP package and operate over the -40°C to +85°C temperature range. Applications include Cell Phones MP3 Players PDAs Notebook Computers.

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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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The MAX14778 is a dual 4:1 analog multiplexer that supports analog signals up to ±25V with a single 3.0 to 5.5V supply. Each multiplexer has separate control inputs to allow independent switching, making the device ideal for multiplexing different communications signals with the same connector pins.

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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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MAX4888B/MAX4888C are dual 8.0Gbps passive switches, ideal for switching two possible destinations of PCI ExpressM (PCIe) data. They support various high-speed interfaces, have superior bandwidth return loss, and come in a small form factor.

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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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