MAXIM Manuals (Industrial)

MAX4855 0.75Ω, Dual SPDT Audio Switch with Integrated Comparators is a audio switch product launched by Maxim Integrated. It has a low on-resistance of 0.75Ω and supports 1.8V power supply. It is suitable for applications such as speaker switching, audio signal routing, etc.

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The MAX4854H/MAX4854HL is a quad SPST switch operating from a single supply voltage of +2V to +5.5V and can handle signals greater than the supply rail. This device features four low on-resistance (7Ω) single-pole/single-throw (SPST) switches with 27.5pF on-capacitance, making it ideal for data signals. If the input signal exceeds the supply rail, the switches become high impedance and prevent the signal from feeding through to the output. The MAX4854H/MAX4854HL are available in the space-saving (3mm x 3mm), 16-pin thin QFN package and operate over the extended (-40°C to +85°C) temperature range.

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The MAX4850/MAX4850H/MAX4852/MAX4852H family of dual SPDT (single-pole/double-throw) switches operate from a single +2V to +5.5V supply and can handle signals greater than the supply rail. These switches feature low 3.5Ω or 3.5Ω/7Ω on-resistance with low on-capacitance, making them ideal for switching audio and data signals. The MAX4850/MAX4850H are configured with two SPDT switches and feature two comparators for headphone detection or mute/send key functions. The MAX4852 has two SPDT switches with no comparators for low 1µA supply current. For over-rail applications, these devices offer either the pass-through or high-impedance option. For the MAX4850/MAX4852, the signal (up to 5.5V) passes through the switch without distortion even when the positive supply rail is exceeded. For the MAX4850H/ MAX4852H, the switch input becomes high impedance when the input signal exceeds the supply rail. The MAX4850/MAX4850H/MAX4852/MAX4852H are available in the space-saving (3mm x 3mm), 16-pin TQFN package and operate over the extended temper-ature range of -40°C to +85°C.

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the max4851 is a quad single-pole/single-throw (spsp) switch from maxim that operates from a single +2v to +5.5v supply and can handle signals greater than the supply rail. this switch features low 3.5 ohm on-resistance with 40pf on-capacitance or 7 ohm on-resistance with 30pf on-capacitance, making it ideal for switching audio and data signals. the max4851/max4851h are configured with four spsp switches and feature a comparator for headphone detection or mute/send key functions. the max4853/max4853h have four spsp switches but do not include a comparator. for over-rail applications, these devices offer either the pass-through or high-impedance option. for the max4851/ max4853, signals greater than the positive supply (up to 5.5v) pass through the switch without distortion. for the max4851h/max4853h, the switch input becomes high impedance when the input signal exceeds the supply rail. the max4851/max4851h/max4853/max4853h are available in the space-saving, 16-pin, 3mm x 3mm thin qfn package and operate over the -40°c to +85°c extended temperature range. applications include usb switching, audio signal routing, cellular phones, notebook computers, pdas, and other handheld devices.

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The MAX4735 low-voltage, 0.31-ohm, quad-SPDT analog switch routes audio signals in portable applications. Each channel has a 0.31-ohm typical on-resistance, allowing the MAX4735 to drive 8-ohm loudspeakers with less than 0.02% distortion. The MAX4735 is configured as a quad-SPDT switch with two common control inputs. Each digital input controls two pairs of SPDT switches. The switches are fully bidirectional, allowing both multiplexing and demultiplexing operation. Break-before-make operation is guaranteed. The device operates from a +1.6V to +3.6V supply and over the extended -40°C to +85°C temperature range. It is offered in both 16-pin 3mm x 3mm TQFN and TSSOP packages.

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The MAX4901~MAX4905 switches feature negative signal capability that allows signals below ground to pass through without distortion. The MAX4901/MAX4902 are a dual SPST (single-pole/single-throw) and the MAX4903/MAX4904/MAX4905 are a single SPDT (single-pole/double-throw) configuration. These analog switches operate from a single +1.8V to +5.5V supply and have low 0.6Ω on-resistance, making them ideal for switching audio signals. The MAX4905 includes a comparator that can be used for headphone detection or mute/send key function. The MAX4902/MAX4904/MAX4905 have internal shunt resis- tors to automatically discharge any capacitance at the NO_ and NC connection points. This reduces click-and-pop sounds that occur when switching audio signals between pre-charged points. A break-before-make fea- ture and auto-discharge also help to reduce popping. These SPST and SPDT switches are available in space-saving 8-pin TDFN and 9-bump UCSP™ pack- ages and operate over the -40°C to +85°C extended temperature range.

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The MAX4762–MAX4764/MAX4764A/MAX4765 low-voltage, dual SPDT, audio switches feature negative signal capability that allows signals below ground to pass through without distortion. These analog switches operate from a single +1.8V to +5.5V supply and have low 0.6Ω on-resistance, making them ideal for switching audio signals. The MAX4763/MAX4765 include a comparator that can be used for headphone detection or a mute/send key function. The MAX4764/MAX4764A/MAX4765 have an internal shunt switch to automatically discharge any capacitance at the NO and NC connection points. This reduces click-and-pop sounds that occur when switching audio signals between precharged points. These SPDT switches are available in space-saving µMAX, TDFN, thin QFN, and UCSP packages and operate over the -40°C to +85°C extended tempera- ture range.

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The MAX4908/MAX4909/MAX4930/MAX4932 are dual 3:1 clickless audio multiplexers with negative-signal handling capability. These analog multiplexers have a low on-resistance, low supply current, and operate from a single supply voltage. They can pass signals as low as VCC - 5.5V without distortion.

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MAX4910/MAX4911/MAX4912 quad, single-pole/double-throw (SPDT), clickless audio switches fea- ture negative signal capability that allows signals as low as VCC-5.5V to pass through without distortion

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The MAX4740/MAX4740H are analog switches with low on-resistance (0.61Ω typ) that operate from a single 1.6V to 5.5V supply. These switches are quad, single-pole, double-throw (SPDT) switches and are designed for routing audio signals. The MAX4740/MAX4740H are pin-to-pin compatible with the ST Microelectronics quad SPDT STG3699 analog switch. The MAX4740 is a quad SPDT switch and the MAX4740H is a quad SPDT switch that can be placed in a high-impedance mode. The switching logic is controlled by 2 control bits (CB1 and CB2). The MAX4740/MAX4740H also feature a low on-resistance match (0.06Ω) and low power-supply current (0.3µA), which helps to increase battery life. These switches are available in a tiny 3mm x 3mm, 16-pin TQFN-EP, and 2.5mm x 2.5mm, 16-pin ultra-thin QFN packages.

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The MAX4670 is an integrated T1/E1/J1 analog protection switch for 1+1 and N+1 line-card redundancy applications. It protects two T1/E1/J1 ports by combining eight SPDT switches in a single package. The switch is optimized for high-return loss and pulse-template performance in T1/E1/J1 long-haul and short-haul applications. The part offers built-in chip-side surge protection capability for short-haul intrabuilding applications. The MAX4670 replaces two diode arrays or two transient voltage suppressors (TVSs) and four dual-SPDT relays, significantly reducing board space and simplifying PC board routing. The MAX4670 pinout is targeted for T1/E1/J1 applications, resulting in a simplified layout when interfacing with standard line transformers and line interface units (LIUs). The MAX4670 has four 1.0Ω (max) on-resistance switches with 60pF/40pF on-/off-capacitances for interfacing to the LIU transmitter outputs. The MAX4670 also includes four 10Ω (max) on-resistance switches with low 24pF/12pF on-/off-capacitances for interfacing to the LIU receiver inputs. Four logic inputs control the receive/transmit pairs, in addition to a SWITCH input that connects all switches to the system’s protection bus. The MAX4670 operates from a single +2.7V to +3.6V supply and is available in 32-pin thermally enhanced TQFN package. The MAX4670 is specified over the -40°C to +85°C operating temperature range.

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The MAX4814E DVI/HDMI 2:4 Low-Frequency Fanout Switch is a bidirectional 2:4 HDMI switch that provides routing for low-frequency signals. It consists of five single-pole/single-throw (SPST) channels, two of which have a low 3Ω (typ) on-resistance to route +5V and drain (ground return), and three to route data. The device features a mode input to control the device through an I2C interface or direct-control logic inputs. The MAX4814E is available in a 64-pin (10mm x 10mm) TQFP package and operates over the -40°C to +85°C extended temperature range.

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The MAX4983E/MAX4984E are high ESD-protected analog switches that combine the low on-capacitance and low on-resistance necessary for high-performance switching applications. COM1 and COM2 are protected against ±15kV ESD without latchup or damage. The devices are ideal for USB 2.0 Hi-Speed applications at 480Mbps. The switches also handle all the requirements for USB low- and full-speed signaling. The MAX4983E/MAX4984E double-pole/double-throw (DPDT) switches are fully specified to operate from a single +2.8V to +5.5V power supply and are protected against a +5.5V short to COM1 and COM2. This feature makes the MAX4983E/MAX4984E fully compliant with the USB 2.0 specification of VBUS fault protection. The devices feature low-threshold-voltage logic inputs, permitting them to be used with low I/O voltage systems. The MAX4983E features an active-low enable input (EN) that when driven high sets the device in shutdown mode. The MAX4984E features an active-high enable input (EN) that when driven low sets the device in shutdown mode. When the device is in shutdown mode, the quiescent supply current is reduced to 0.1µA. The MAX4983E/MAX4984E are available in a space-saving, 10-pin, 1.4mm x 1.8mm UTQFN package, and operate over a -40°C to +85°C temperature range.

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The MAX4889B/MAX4889C high-speed passive switches route PCI Express® (PCIe) data between two possible destinations in desktop or notebook PCs.

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The MAX4989 is a bidirectional 2-of-4 USB 2.0 crosspoint switch. The MAX4989 features the low on-capacitance and low on-resistance necessary to switch USB 2.0 low-/full-/Hi-Speed signals at data rates up to 480Mbps. This device allows any 2-of-4 USB pairs to be connected together and is configured through a simple 3-input control logic interface. The MAX4989 operates from a single +2.7V to +5.5V supply and features an internal charge pump to permit full rail-to-rail swing. This device also features a high-impedance shutdown mode to reduce supply current to 100nA (typ). The MAX4989 is available in a 14-pin, 3mm x 3mm TDFN package and operates over the extended -40°C to +85°C temperature range.

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The MAX4947/MAX4948 are low-voltage, low-power, high-performance analog switches that operate from a single +1.8V to +5.5V supply and have a low switching capacitance of 30pF for high switching speeds and low losses.

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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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