Vishay Intertechnology, Inc. has released two high-voltage, single- and dual-supply single-pole double-throw (SPDT) analog switches. The DG469 and DG470 devices are identical, except the DG470 provides an enable pin, which puts all of the switches in a high-impedance state, maintaining a “safe state” at power up and preventing accidental signal or power shorts.

The switches are optimized for audio and video signal switching, sample and hold systems, precision data acquisition, relay replacement, and power routing in audio equipment, automatic test equipment, industrial equipment, communications systems, xDSL modems, automotive and avionic systems, and medical equipment.

For instrumentation and power routing, the DG470's enable pin disconnects inputs and outputs, guaranteeing that signals and power are not connected until the enable pin is activated. The enable pin can also be used as a quick “disconnect” function in the event of a fault condition, and provides a “mute” function for audio switching.

The DG469 and DG470 offer a 3.6 Ω typical and 4.2 Ω maximum on-resistance with flatness of 0.4 Ω typical. Both devices are rated for 120 mA of continuous current, key for relay replacement and power routing. The devices offer a 44-V maximum supply voltage rating, and 57-dB isolation at 1 MHz.

The high-voltage devices are fully specified to operate with dual supplies at ±5 V and ±15 V or a 12-V single supply, and offer an up to ±15-V analog signal range on the outputs and inputs. The switches operate with low power dissipation of 66 µW. They feature fast typical switching speeds of 129 ns (turn-on) and 80 ns (turn-off).

All digital inputs have 0.8-V and 2.4-V logic thresholds, ensuring low-voltage CMOS/TTL logic compatibility. Each switch conducts equally well in both directions when on, and can handle an input signal range that extends to the supply voltage rails. The devices are offered in a choice ofMSOP-8 and SOIC-8 packages.

The DG469 is an improved upgrade for the DG419, reducing the on resistance (of 4.2 Ω instead of 35 Ω) and eliminating the need for a separate VL logic supply voltage. The DG469 serves as a pin-for-pin upgrade for the MAX4659 by offering much lower on resistance, dramatically lower power consumption, a higher switch current rating (120 mA vs. 30 mA), and a wider temperature range.

Both devices are available in the standard and extended temperature ranges of -40 °C to +85 °C and -40 °C to +125 °C.

Samples and production quantities of the DG469 and DG470 SPDT analog switches are available, with lead times of six to eight weeks for larger orders. Pricing for U.S. delivery in 1000-piece quantities is $0.70/each.
Vishay Intertechnology, Inc.
619 336 0860
www.vishay.com

Crystek's CVCO55CC-1930-2110 VCO operates from 1930 MHz to 2110 MHz with a control voltage range of 0.5 V~18 V. This VCO features a typical phase noise of -110 dBc/Hz at 10KHz offset and has excel-lent linearity. It is packaged in the industry-standard 0.5-in. × 0.5-in.SMD package. Input voltage is 8.0 V, with a maximum current consumption of 35 mA. Pulling and pushing are minimized to 1.00 MHz and 0.50 MHz/V, respectively. Second harmonic suppression is -12 dBc typical.

The CVCO55CC-1930-2110 is designed for use in applications such as digital radio equipment, fixed wireless access, satellite communications systems, and base stations.

Pricing for the CVCO55CC-1930-2110 starts at $18.46 each in volume quantities.
Crystek
www.crystek.com

Microlab/FXR's model D5-85FN is a 5-way wideband reactive power splitter with a split loss of 7 dB. The model extends the series Dx-85 FN, all designed to a bandwidth of 700-2,700 MHz, which includes the 2400 MHz Wi-Fi frequencies and the cellular expansion into 700 and 2700 MHz bands. The extremely high reliability required of DAS systems is easily met with a passive network approach. The extremely low loss of reactive D5-85FN helps realize passive design without recourse to amplifiers or other active components. It enhances reliability, cuts installation cost and has a high communications survival potential in an emergency situation. Insertion loss is <0.05 dB, PIM is guaranteed to be <-150 dBc and units are compliant to IP68 and RoHS. If required, the product can be delivered with 7-16 mm DIN connectors.
Microlab/FXR
(973) 386-9696
www.microlab.fxr.com

Microlab/FXR's new directional coupler, CK-70N series, covers from 380 to 2,700 MHz to include the Tetra/PMR bands, cellular, PCS and UMTS bands, all in a single unit. These directional couplers have been designed using a multisection, airline design for low loss of less than 0.1 dB, flat frequency response and 200 W of through line power. The wide frequency range and low passive intermodulation of this design allows use with multiband antennas and leaky cable as well as higher-power cellular systems when PIM issues become critical. The CK-70 series are available as 3-port models with coupling values of 6, 10, and 15 dB, and are also available in 4-port versions. All are available for immediate delivery.
Microlab/FXR
(973) 386-9696
www.microlab.fxr.com

To minimize the impact of compact fluorescent lamps (CFLs) and other disturbance signals on IR remote-control systems, Vishay Intertechnology has released five new series of high-sensitivity AGC3 IR receivers optimized for noisy environments and short burst codes. The IR receivers offer a 2.5-V to 5.5-V supply voltage range and low power consumption of 0.35 mA in three industry-standard pin configurations.

These include TSOP313, TSOP323, TSOP343, TSOP383, and TSOP393 series of ultra-noise-resistant AGC3 IR remote-control receivers. The devices provide robustness against all disturbance signals and better suppress spurious pulses from energy-saving CFL lamps.

With a higher resistance to ESD, improved shielding against EMI, and improved immunity against ambient light, the IR receivers are optimized for remote control, data transmission, and light barrier applications in TV sets, cable boxes, satellite receiver boxes, DVD players, audio systems, air conditioners, and toys. Each receiver includes a photo detector and preamplifier circuit, mounted within a 3-pin epoxy-encapsulated module that acts as an IR filter for improved PCM frequency. Three industry-standard pin configurations are available, with minimum irradiances of 0.1 mW/m2 and 0.15 mW/m2.

The new devices are specified for operation from 2.5 V to 5.5 V with a transmission range of 45 meters. The modules feature a carrier frequency range 30 kHz to 56 kHz, offer a low 0.35-mA supply current, and comply with RoHS 2002/95/EC and WEEE 2002/96/EC.
Vishay Intertechnology
www.vishay.com

Raditek's newest model, the FH series, is a 450-470 MHz drop-in isolator with 100 W power-handling capability. Operating over the full temperature range of 0 to +80 °C with dimensions of 38.1 × 45.7 × 11.5 millimeters. Specifications over temperature are insertion loss 0.35 dB, isolation 22 dB and VSWR 1.19:1 maximum. An optional 10, 20 or 30 dB attenuator is also available.
Raditek
(408) 266-7404
www.raditek.com

TriQuint Semiconductor, Inc. has announced its latest-generation of highly integrated module solutions for ultralow-cost GSM and CDMA handsets in emerging markets. The dual-band GSM Tx module is for use in the United States. The company's highly integrated modules offer customers a reduced bill-of-materials, smaller size, longer battery life and interoperability with single-chip silicon radios.

The TQM6M4028U, a member of the QUANTUM Tx module family, is tested and pre-qualified for use with three leading single-chip baseband/transceiver manufacturers. At 6 mm × 6mm, the TQM6M4028U achieves small form factor and addresses the GSM850 and PCS1900 bands. It is shipping in volume for phones in the U.S. market and is modeled after the TQM6M4028E, which supports the GSM900 and DCS1800 bands and is used in ultralow-cost handsets in Europe and Asia.

The TQM613027 is the third member of the 7 mm × 4 mm TRITIUM II PA-duplexer module family and builds on the success of its predecessor, the TQM613025. The TQM613025 was the first high-efficiency PA-duplexer module used in low-cost CDMA cellular-band handsets for emerging markets and offers improved RF performance and minimizes battery consumption; a critical need in countries where access to power outlets is limited. The TQM613027 is a drop-in replacement that has been optimized for manufacturing cost efficiencies.

The TQM613027 and the TQM6M4028U are shipping in volume.
Triquint
www.triquint.com

Avago Technologies has released three high-temperature, high-speed digital opto-couplers. These wide temperature optocouplers, housed in a 5-pin surface-mount package, have been designed to operate over temperatures from -40 °C to 125 °C.

The latest additions to the optocoupler family include a 1 MBd single-channel digital optocoupler (ACPL-M43U), a 10 MBd logic gate optocoupler (ACPL-M61U), and an intelligent power module optocoupler that includes an aluminum gallium arsenide (AlGaAs) layer optically coupled to an integrated high gain photo detector (ACPL-M46U). These high-speed digital optocouplers are low-power and high common mode transient rate (CMR) components that provide immunity to transient noises, EMI and ground loop eliminations.

The three optocouplers are compliant to most industrial safety standards such as IEC/EN/DIN EN 60747-5-2, UL 1577 and CSA.

The difference between the ACPL-M43U and M46U is that the M46U offers excellent propagation delay difference that allows the circuit designer to reduce switching dead time to improve inverter efficiency. These extended-temperature IPM optocouplers are suitable for battery management systems, motor control, isolated IGBT/MOSFET gate drives, ac and brushless dc motors, and industrial inverters for power supplies. While ACPL-M61U 10 MBd optocoupler, targets industrial communications interface applications. Its optically coupled gates combined with a AlGaAs light-emitting diode and integrated high gain photo detector, are designed for use with most industrial communication interfaces (such as RS-232, RS-485, CANBus, etc), high-temperature digital signal isolation, microcontroller interfaces, and digital isolation for analog-to-digital and digital-to-analog conversion.

The ACPL-M43U, M46U and M61U optocouplers are priced at $1.50, $1.63 and $1.75 respectively in 10,000 quantities.
Avago Technologies
(800) 235 0312
www.avagotech.com

Arlon Inc.'s TC600 microwave laminate offers 6.15 dielectric constant. With best-in-class thermal conductivity, it is designed to provide enhanced heat-transfer, while reducing dielectric loss, insertion loss, and dielectric constant variation with temperature. The increased thermal conductivity of TC600 provides higher power handling, reduces power amplifier junction temperatures and reduces solder joint fatigue. This unique material property can be used to complement or reduce the system costs of existing thermal management solutions.

According to Arlon, TC600 has “best-in-class” dielectric constant stability across a wide temperature range. This helps power amplifier and antenna designers maximize gain and minimize dead bandwidth lost to dielectric constant drift as operating temperature changes. Dielectric constant stability is critical to phase-sensitive devices such as power divider circuitry or network transformers used for impedance-matching networks in power amplifier transformer circuitry. The low coefficient of thermal expansion properties provide a higher level of component attachment and plated thru hole reliability for improved device reliability and lower warranty costs.
Arlon Inc.
(800) 635-9333 x205
www.arlon-med.com

Cascade Microtech has launched two Pyramid parametric probe cards that allow single-pass high-performance dc and RF measurements and reduce the cost of parametric production test for semiconductors with advanced process nodes at 65 nm, 45 nm and beyond. These probe cards leverage the new Pyramid Plus parametric probe card manufacturing technology.

According to Cascade, the Pyramid Plus membrane manufacturing process enables multiple specification improvements such as state-of-the-art leakage performance to 1 fA with a 5-second settling time, improved parametric performance, and reliable contact on smaller test pads. The manufacturer also claims that its membrane technology is unique in its ability to integrate 20 GHz transmission lines and guarded traces to the probe tip, reducing crosstalk and improving settling time.

Pyramid Plus technology enables probing of 30 microns squared probe pads. Also, its MicroScrub technology nets consistently smaller scrub marks and uniform marking, yielding less particle generation that can contaminate the wafer, essential for in-line parametric testing, noted the supplier. MicroScrub allows the same probe card to be used for Cu and Al pads, reducing the number of probe cards, probers and setups, lowering the cost of ownership. The permanent probe tip alignment and consistent low contact resistance of Pyramid probes extend the probe card lifetime.

The parametric Pyramid Probe cards are available in either dc-only (PDC50) or dc plus RF (PRF50) configurations, with options for pad size as well as leakage specifications.
Cascade Microtech
www.cascademicrotech.com

STMicroelectronics has unwrapped a very high-performance 24-bit audio digital to analog converter (DAC) that is intended for the mobile music market. Implemented in 0.13-micron analog CMOS process, single-chip STw5210 provides 103 dB signal-to-noise ratio through the whole audio path, while also embedding the company's Playback Time Extender (PTE) processing scheme to minimize power consumption. This audio solution also integrates power management circuitry to simplify system design and enable direct connection to the battery, and is available in small TFBGA and VFQFPN packages. It will also be soon offered in a tiny 2.6 mm × 2.6mm WLCSP package.

The integrated power management and the built-in 50 mW headset amplifier, which operates without coupling capacitors, ensures easy system implementation, minimum bill of materials (BOM), and a very small footprint.

Samples of the STw5210 are available to key customers, with volume production planned for March. It is packaged in a 4 mm × 4 mm × 1.2 mm TFBGA40, with 0.5 mm ball pitch, and a 7 mm × 7 mm × 1 mm in QFN44, with 0.5 mm pitch. A 2.6 mm × 2.6 mm × 0.6 mm WLCSP36 packaged version, with 0.4 mm ball pitch, is planned for introduction in the third quarter.. The DAC is priced at $1.80 in quantities of 1000 units.
STMicroelectronics
www.st.com

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