Connor-Winfield Corp., The    Aurora, IL 60505
Apr 18, 2012 SFX-525G frequency translator and 20 Hz jitter attenuator translates an input between 8 kHz to 100 MHz to output frequencies between 8-250 MHz. It provides jitter filtered, wander following output signal synchronization to superior GPS, Stratum or peer input reference signal and supports FEC rates such as 15/14 and 255/237. IC is designed for use in line and service termination cards to provide phase-locked synchronization for network equipment.

International Manufacturing Services, Inc. (IMS)    Portsmouth, RI 02871
Dec 09, 2011 Available in 1-10 dB attenuation with 9 different temperature characteristics, AV-0805 Series features nickel barrier layer for solder leach resistance. RoHS-compliant devices are suited for power amplifiers, LNAs, transceiver modules, and synthesizers as well as WiMax and WiFi equipment, fixed and mobile satellite radio, and test/measurement instrumentation.

M/A-COM Technology Solutions, Inc.    Lowell, MA 01851
Aug 31, 2011 Fabricated as monolithic GaAs IC using pHEMT process, MAAD-010305 is designed to condition cable input signals to STB. This 1-bit, linear solution, suited for use in high-volume consumer premise equipment, exhibits 0.3 dB insertion loss, 15 dB attenuation, and 14 dB input and output return loss. Designed for operation from DC to 1.1 GHz, product comes in RoHS-compliant, SOT-25, 5-lead SMT plastic package and allows for positive and negative voltage control complimented by 75 ohm impedance.

RF Micro Devices, Inc.    Greensboro, NC 27409-9421
Jun 13, 2011 Covering frequency range of 50-4,000 MHz, RFSA2013 voltage controlled attenuators (VCAs) operate from 5 V power supply, while RFSA2023 units require 3 V supply. Monolithic VCAs also feature third order intercept point of greater than 50 dBm over 30 dB gain control range. Internal temperature compensation allows for stable attenuation profile over operating temperatures from -40 to +85°C. Units are available in 3 x 3 mm QFN packages.

Kaben Wireless, Inc    Ontario   Canada
Jun 09, 2011 Featuring programmable output frequency from 10 MHz to 1 GHz in steps of 10 Hz, Model KWS430 delivers 0.35 ps RMS jitter in 12 kHz to 20 MHz integration bandwidth. Device operates from 25-40 MHz clock or XTAL reference frequency, performs clock cleaning on jittered clock up to 1,330 MHz, and can derive clean clock from accepting NRZ data inputs directly, at data rates up to 1.33 Gbps. Programmable via I2C or SPI interface, unit includes Auto Calibration feature that prevents band changes.

Newport Corporation    Irvine, CA 92606
May 25, 2011 Manual UVA-800-M and motorized UVA-800-CONEX ultrafast variable attenuators feature thin film polarizers that protect against exposure to contaminants. Polarizers are used in conjunction with half-waveplate to provide adjustable intensity ratio splitting of S- and P-polarized outputs, both of which have polarization contrast ratios over 1:450. Motorized attenuator includes rotational stage with CONEX(TM) controller/driver, which communicates with and is powered by computer via USB port.

Newport Corporation    Irvine, CA 92606
May 06, 2011 Series 818 photodetectors are available with attenuator design, based on optic and clear aperture of 918D series detectors, that features 10 mm clear aperture to help user accurately align detector to input optical beam. Window also helps avoid detector overfilling, while clearly visible cross hair on housing assists coarse alignment of beam. With calibrated levels from pW to 2 W, detectors operate from 200-1,800 nm and feature matching patented, removable OD3 attenuators.

M/A-COM Technology Solutions, Inc.    Lowell, MA 01851
May 02, 2011 Intended for 75 Ohm systems operating up to 1 GHz, MAAD-008866 integrates TTL/CMOS compatible driver and offers parallel and serial control with power-up state function. This 6-bit, 0.5 dB step digital attenuator consumes 4 µA typ @ 5 V (steady state) and achieves insertion loss of 1.4 dB with typ input return loss of 18 dB from 5-1,000 MHz. Attenuation accuracy is ±0.15 dB plus 4% of attenuation setting. Use helps maximize signal level control performance in gateways, nodes, and tuners.

GAO FiberOptics Inc.    Toronto   Canada
Mar 24, 2011 Integrating functionality of both attenuator and optical power meter in one unit, Model 5501 provides measurement range of 2.5-65 dB and attenuating wavelength from 1,260-1,650 nm at accuracy of ±0.8 dB. Calibrated wavelengths include 1,310, 1,490, 1,550, and 1,625 nm. Equipped with LCD screen, handheld unit displays wavelength, input and output power, current attenuation, and selected step size and absolute/relative attenuation value simultaneously.

RF Micro Devices, Inc.    Greensboro, NC 27409-9421
Nov 16, 2010 Models RFSA2614 and RFSA2624 digital step attenuators feature 6-bit design with serial or parallel mode programming and cover frequency range from 50-4,000 MHz. Radio designers can use it to adjust gain of high-linearity receive and transmit channels over 31.5 dB range with 0.5 dB step resolution. Attenuators also feature settling time of 200 nsec, as well as 1 dB compression point of 27 dBm and 3rd-order intercept point of +48 dBm. They operate with cellular, WiMAX, wireless backhaul sytems.

Maxim Integrated Products    Sunnyvale, CA 94086
Jul 20, 2010 Composed of 2 VVAs integrated into 1 monolithic IC, MAX19790 delivers 44 dB of linearly controlled dynamic range with S21 flatness over frequency and all attenuation settings. Each attenuator incorporates control circuit that provides 22 dB of attenuation range with linear control slope of 10 dB/V. When operating over any 125 MHz contiguous band between 950-2,150 MHz, IC delivers typical and max flatness levels of 0.13 and 0.89 dB peak-to-peak, respectively, through 30 dB to total attenuation.

Ophir-Spiricon Inc.    Logan, UT 84321
Jun 21, 2010 Comprised of modular, slide-in, neutral density attenuators and C-mount holder, UV ND Filter system attenuates UV laser beams so they are at proper intensity for CCD or Pyroelectric cameras. Filters work on lasers in 190-380 nm range and are made from Fused Silica with Inconel coating on one surface to effect attenuation of incident light. They are also tilted to eliminate any parallel, reflecting surfaces that can cause interference effects.

International Manufacturing Services, Inc. (IMS)    Portsmouth, RI 02871
May 05, 2010 Packaged face-down in tape for continuous mounting with pick-and-place machinery, 0805-sized attenuator IMS1141 is available with values from 0-10 dB and features RoHS-compliant nickel barrier layer terminals with 100% matte tin finish. Face down mounting minimizes reflection and helps ensure optimal performance to 20 GHz, depending on application. Product has 50-piece MOQ for cut tape and 1000-piece MOQ for tape and reel.

GAO FiberOptics Inc.    Toronto   Canada
Dec 16, 2009 Rugged model A0610001 displays attenuation values in either dB or dBm and available calibrated wavelengths include 1,310, 1,490, 1,550, and 1,625 nm. Supporting operating time of 40 hr when fully charged, device features auto-off function and restores attenuating value automatically. It is designed for on-line testing and maintenance of fiber optic systems as well as digital communication system devices such as PHD or SDH, or systems using analog modulation such as CATV.

Peregrine Semiconductor    San Diego, CA 92121
Oct 19, 2009 Supplied in 3 x 3 x 0.85 mm package, 2-bit PE43204 leverages UltraCMOS(TM) and HaRP(TM) technologies to serve 4G Tx/Rx applications. It supports 18 dB attenuation range in 6 and 12 dB steps, protects receive path, and prevents overdriving of ADC. With no gate lag or phase drift, DSA delivers accelerated settling time and Input IP3 greater than +61 dBm at 3 GHz. Typ switching time is 26 nsec, with +0.2 dB attenuation accuracy across DC to 3 GHz operating range.

GAO FiberOptics Inc.    Toronto   Canada
Oct 14, 2009 Operating at wavelengths from 1,290-1,625 Nm and temperature range of -5 to 75°C, manual variable optical attenuator is designed for optical power control and equalization of WDM systems, FTTx, OADM ,OXC, CATV, and measurement instruments. It features insertion loss of less than 1.5 dB, return loss of over 55 dB, and polarization dependent loss of less than 0.2 dB. Maximum handling power is 300 mW and attenuation level ranges from 10-45 dB.

GAO Tek Inc.    Toronto M1B2K4  Canada
Sep 01, 2009 Offering attenuation levels of 0-25 dB at 0.5 dB intervals, plug-in fixed attenuator provides high stability, low insertion loss, and works at wavelengths from 1,260-1,620 Nm with maximum handling power of 1 W. Device is suited for use in telecom networks, optical fiber CATV, measuring instruments, local area networks, and optical fiber sensors. Optimized for doped fiber technology, units are available with different connector types and end face configurations.

International Manufacturing Services, Inc. (IMS)    Portsmouth, RI 02871
Jul 22, 2009 Measuring 0.375 x 0.250 in., VGX-3725WA high power aluminum nitride chip attenuator features wraparound terminals for solder or epoxy attachment and dissipates 100 W at 100°C baseplate temperature. Standard impedance is 50W and attenuation values to 30 dB are available with 0.5 dB increments. Attenuation accuracy starts at ±0.2 dB while achievable VSWR is 1.3:1 to 6 GHz depending on implementation.

GAO Embedded Inc.    Toronto 12345  Canada
Jun 24, 2009 Featuring low insertion loss, high return loss and low PDL, PC board mountable variable optical attenuator is used for power control and equalization for WDMs, FTTx, CATV, OADM and measurement instruments. With operating wavelength between 1,290-1,625 nm, unit has maximum handling power of 1 W, and attenuation level from 10-45 dB at intervals of 0.5 dB. Manual attenuator is suited for fiber optic systems.

Vaunix Technology Corporation    Haverhill, MA 01835
Jun 18, 2009 Offering 63 dB of programmable attenuation through 6 GHz, Lab Brick LDA-102 and LDA-602 offer frequency coverage of 0.1-1000.0 MHz and 6-6,000 MHz, respectively. Both are powered and controlled by connection to PC's USB port or powered USB hub. Based on GaAs MMIC attenuator technology, devices offer 0.5 dB attenuation resolution by means of programmable steps from 0.5-63 dB. Both are designed for 50 W environments and are rated for max switching speed of 80 ns.