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Audio Codec Uses Class H Technology

October 28, 2008 6:49 am | Product Releases | Comments

Improving audio playback battery life by up to 2 hours, Cirrus Logic’s CS42L55 portable audio codec utilizes supply-adjusting bimodal Class H headphone driver technology for quiescent power consumption of 5.1 mW. The 5 mm × 5 mm × 0.45 mm 36-pin QFN-packaged component delivers 1 Vrms line output from a 1.8 V supply and 17 mW per channel of 96 dB dynamic range

LISTED UNDER: ICs

Convergent Processors Deliver High Clock Speeds

October 27, 2008 8:35 am | Analog Devices, Inc. | Product Releases | Comments

Available at clock speeds up to 400 MHz (800 MMACS), the Blackfin BF51x series of the convergent-processor family from Analog Devices include 116 kBytes of RAM, plus an optional 4 Mbits of serial (SPI) flash memory. Each device integrates Lockbox security for code and content protection, support for sixteen stereo I2S digital-audio channels

LISTED UNDER: ICs

Audio Codec Incorporates miniDSP

October 27, 2008 5:10 am | Product Releases | Comments

Offering a sample rate of 192 kHz, Texas Instruments’ TLV320AIC3254 audio codec integrates the miniDSP programmable audio processing engine for running algorithms such as surround sound. The 5 mm² QFN-32-packaged component utilizes PowerTune technology for power consumption from 2.4 mW at 90 dB SNR to 5.1 mW at 100 dB SNR for stereo playback, and from 6 mW at 88 dB SNR to 14.2 mW at 93 dB SNR for stereo recording. The 1.8 V device includes the PurePath

LISTED UNDER: ICs
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Battery Charger IC Works with Various Standards

October 24, 2008 12:29 pm | Product Releases | Comments

Performing in single-cell Li-Ion and Li-polymer powered systems, Summit Microelectronics’ SMB339 3rd-generation programmable battery charger IC shows compatibility with USB 2.0, USB on-the-go supplement, USB 1.0, IEEE1725, and Chinese USB charging specifications. The device offers

LISTED UNDER: ICs

PMIC Targets Handheld Apps

October 24, 2008 5:08 am | Product Releases | Comments

Integrating a single-cell, lithium-ion (Li+)/lithium-polymer (Li-Poly) charger with proprietary Smart Power Selector circuitry, Maxim Integrated Products’ MAX8819A power-management IC (PMIC) functions in portable media players, MP3 players, GPS devices, and other handheld applications. The 4 mm × 4 mm × 0.8 mm 28-pin QFN-packaged component uses 3 2 MHz step-down converters and a step-up converter with serial-step dimming control for powering from

LISTED UNDER: ICs

RF Detector Offers RMS Measurement Capability

October 23, 2008 9:38 am | Product Releases | Comments

Regardless of waveforms that have high crest-factor modulated content, multi-carrier, or multitone, Linear Technology’s LT5581 broadband 6 GHz RF detector demonstrates an rms measurement capability for RF power readings to within ±0.2 dB. The 8-lead 3 mm × 2 mm DFN-packaged component outputs a DC voltage that is linearly proportional to the log input power for mV/dB scaling with linearity of >±1 dB across a 40 dB dynamic range. The device operates over a frequency range from

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Voltage Regulators Allow Large Transient Range

October 22, 2008 5:55 am | Product Releases | Comments

With an input voltage range from 4.5 V to 42 V, SIMPLE SWITCHER step-down voltage regulators from National Semiconductor allow for voltage transients from 12 V and 24 V input rails. The regulators feature internal compensation and low pin-count packages. The 11 SIMPLE SWITCHER step-down voltage regulators support load currents from 0.5 A to 5 A. Each provides a fixed switching frequency

LISTED UNDER: ICs

Audio Receiver Features Converter Technology

October 22, 2008 5:30 am | Product Releases | Comments

Giving designers of consumer and professional audio applications a solution for receiving incoming digital audio sources, the CS8422 24-bit, 192 kHz digital audio receiver from Cirrus Logic features a low jitter PLL and integrated asynchronous sample rate converter. The audio receiver integrates an input multiplexer that supports up to four S/PDIF or two differential AES3 audio inputs

LISTED UNDER: ICs
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SoC Reduces ICs in Amplification Circuits

October 21, 2008 6:00 am | Product Releases | Comments

Using multibit Delta-Sigma audio converter technology, the CS47048 audio system-on-a-chip (SOC) from Cirrus Logic can reduce the number of ICs required to implement an automotive amplifier by as many as 10. Featuring a 4-channel ADC and a 32-bit audio DSP, the SOC has a 105 dB dynamic range and a -98 dB THD+N. The device uses integrated converters to simplify the management

LISTED UNDER: ICs

Buck Controllers Deliver up to 12 A

October 21, 2008 5:44 am | Product Releases | Comments

Accepting and input from 6 to 42 V, the Simple Switcher family of synchronous buck controllers from National Semiconductor has an output current capability of up to 12 A. The LM3150 features an adjustable switching frequency and output voltage, and the LM3151, LM3152 and LM3153 deliver a fixed 3.3-V output voltage at 250, 500, and 750 kHz

LISTED UNDER: ICs

Analog Switch Exhibits Negative Signal Capability

October 16, 2008 12:23 pm | Product Releases | Comments

Operating in audio applications, austriamicrosystems’ AS1747 dual SPDT analog signal switch presents a negative signal capability to allow designs without AC coupling capacitance. The IC shows on-resistance of 0.40 Ohm, channel-to-channel matching of <0.03 Ohm, on-resistance flatness of 0.25 Ohm, and total harmonic distortion (THD+N) of 0.01%. The 10-pin 3 mm² TDFN-packaged

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Schottky Diode Comes in SOD-923 Packaging

October 15, 2008 11:52 am | Product Releases | Comments

Measuring 0.026” × 0.043” × 0.016” (0.650 mm × 1.100 mm × 0.410 mm), Central Semiconductor’s CMAD6263 70 V 15 mA Schottky diode performs in a SOD-923 package. The integrated circuit demonstrates a maximum VF of 410 mV at 1 mA (395 mV typ.), typical reverse leakage current of 98 nA at 50 V (200 nA max.), and power dissipation of

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Isolation Amplifiers Possess High CMR

October 15, 2008 11:36 am | Product Releases | Comments

Meeting 8 mm creepage and clearance requirements, Avago Technologies’ ACPL-C780, ACPL-C780, and ACPL-C784 isolation amplifiers present a CMR of 15 kV/µs at 1,000 V VCM. The SO-8-packaged components display gain temperature drift of 0.00025 V/V/°C, input offset voltage of 0.30000 mV, and 0.00040% nonlinearity using advanced sigma-delta A/D

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LDO Regulators Consume Low Current

October 14, 2008 5:19 am | Analog Devices, Inc. | Product Releases | Comments

Coming in a 5-lead TSOT package, Analog Devices’ ADP120, ADP121 and ADP130 linear LDO regulators exhibit supply currents of <350 mA to mixed-signal ICs while consuming from 11 µA to 24 µA of quiescent current. The components operate at output voltages as low as 1.2 V with a 1 µF ceramic output capacitor. The ADP120 and ADP121 offer 60 dB PSR at

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Controller Performs in Half-Bridge Converters

October 13, 2008 12:34 pm | Stmicroelectronics | Product Releases | Comments

Operating in offline power supplies, STMicroelectronics’ L6591 PWM controller demonstrates optimization for zero-voltage switching asymmetrical half-bridge converters. The device enables efficiencies of 85% min. at 500 kHz, implements pulse skipping under light-load and no-load conditions, and has a quiescent current of <3 mA. The controller includes

LISTED UNDER: ICs

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