Mini-Circuits    Brooklyn, NY 11235
Sep 23, 2011 Using combinations of lumped and distributed elements in 3D ceramic structure, BFCN products cover frequencies from 7,100-8,750 MHz. Products come in 1206 package format and offer designs with up to 5 sections and DC isolated I/O. These Low-Temperature Co-Fired Ceramic (LTCC) components feature conductive metallization in multi-layer structure. They enable realization of various RF building blocks: inductors, capacitors, broadside, and edge-coupled lines.

Crystek Corp.    Fort Myers, FL 33913
Feb 02, 2011 Suited for use in broadband coupling and test and measurement applications, CBLK DC Blocks are designed to block DC voltage while passing frequencies from 300 kHz to 3 GHz. Units produce flat frequency response and offer low insertion loss of 0.02 dB at 300 KHz and 0.20 db at 3 GHz. DC input voltage is rated at 16 WVdc max and operating temperature range is -55 to +90°C.

Pulse Engineering, Inc.    San Diego, CA 92128
Sep 30, 2010 Model CX5060 filter passes cable television (CATV) Docsis 3.0 signals, blocks multimedia-over-coax signals, and provides RFI shielding and surge protection within weatherproof metal housing. Unit's pass band frequency is from 5-1,002 MHz with impedance of 75 W and provides over 40 dB of insertion loss in 1,125-2,300 MHz frequency range. Operating over temperatures of -40 to +85°C, compact product suits side-of-house outdoor applications for CATV service suppliers.

AVX Corp.    Myrtle Beach, SC 29578
May 28, 2010 Available in miniature 0402 case sizes with LGA termination for frequencies from 787 MHz to 5.5 GHz, LP0402N Series enhances harmonic performance for WiMAX, WiBro, and W-LAN applications. Products are based on thin film multi-layer technology and provide minimal insertion loss and optimal attenuation at second and third harmonics in 0402 case size. Filters are designed specifically to improve signal-to-noise ratio in wireless communication systems.

Crystek Corp.    Fort Myers, FL 33913
May 28, 2010 Including 5 models with frequency ranges from DC to 100-500 MHz, CLPFL Series low pass filters are designed for test equipment and general lab use. They feature 7th Order Butterworth Response and 50 W SMA connectors. Encased in rugged SMA housing, all models are rated at +36 dBm (4 W), with operating temperature of -40 to 85°C and storage temperature of -55 to 100°C.

Alligator Technologies    Costa Mesa, CA 92627
Jun 25, 2009 Compatible with all 12, 16, or 24-bit A/D devices, USB-controlled, single-channel Model USBPGF-S1(TM) consists of programmable signal conditioning instrumentation amplifier and low pass filter. Users can mix and match filter characteristics and independently select and program AC or DC coupling, corner frequency, and gain steps up to x1000 in single-ended or differential measurements. Each can be configured as 8-pole Butterworth, Bessel, elliptic, or linear phase filter.

RF Micro Devices, Inc.    Greensboro, NC 27409-9421
Mar 04, 2009 Along with single-pole nine throw pHEMT switch, RF1194 integrates quad-band GSM/GPRS/EDGE transmit low-pass filtering and 4 GSM/GPRS/EDGE receive surface acoustic wave filters. Model RF1195 integrates single-pole ten throw pHEMT switch and builds on RF1194 architecture by providing additional high-linearity port for 4 total symmetrical WCDMA/HSPA+ Tx/Rx ports. Both cellular switch filter modules come in pin-to-pin compatible, 4.5 x 4.5 x 1.2 mm packages.

Linear Technology Corp.    Milpitas, CA 95035
Jan 08, 2009 Broadband active filters/ADC driver amplifiers include LTC6603, LTC6601-1, LTC6605-7, LTC6605-10, and LTC6605-14. Model LTC6603 features dual matched programmable ninth-order switched capacitor linear-phase filter and ADC driver, where as LTC6601-1, is low noise 0.5% tolerance lowpass active filter and ADC driver with configurable bandwidth from 5-28 MHz. LTC6605-7/-10/-14, are second-order linear phase dual matched lowpass active filters having bandwidths of 7, 10, and 14 MHz, respectively.

Linear Technology Corp.    Milpitas, CA 95035
Sep 15, 2008 Supplied in 4 x 7 mm QFN SMT package, LT6604-xx series is comprised of dual fixed frequency lowpass active filters/amplifiers with 2.5, 5, 10, and 15 MHz cutoff frequencies. Products consist of 2 matched, fully differential amplifiers combined with fourth order filters approximating Chebyshev lowpass response. Differential output stage drives directly into ADCs with minimum distortion/noise, and each amplifier has output swing of 2 Vp-p min as well as adjustable common-mode voltage.

Edmund Optics    Barrington, NJ 08007
Dec 13, 2007 Six-position TECHSPEC® Filter Wheels are suited for DNA sequencing, fluorescence microscopy, and laser beam attenuation applications. UV/VIS ND and NIR ND packages include filters with ODs from 0.5-3.0. VIS shortpass and longpass packages include filters with cut-off or cut-on wavelengths from 500-750 nm, while NIR shortpass and longpass packages include cut-off and cut-on wavelengths from 800-1,050 nm. Bandpass filters have glass reference numbers of BG38, BG12, U340, RT830, U330, and U360.

Seiko Epson Corporation    Suwa, Nagano   Japan
Nov 15, 2007 Suited for use in digital cameras, optical low pass filter (OLPF) employs structure wherein wide-band phase retardation film is sandwiched between pair of quartz plates. This design provides uniform light separation at all wavelengths of visible light, eliminating moire patterns across visible spectrum. Requiring only 2 quartz plates, this OLPF enhances quality of digital cameras and enables them to be made thinner.

International Manufacturing Services, Inc. (IMS)    Portsmouth, RI 02871
Jan 25, 2007 Measuring 0.55 x 0.12 x 0.025 in., Model IMF-2345 features input power rating of 15 W with 100°C baseplate temperature. With low insertion loss and consistency from part to part, 7-section device is suited for harmonic suppression in RF/Microwave and communications systems where multi-layer construction or otherwise commodity level device performance will not suffice.

VACUUMSCHMELZE GmbH & Co.    Elizabethtown, KY 42701
Jan 05, 2007 Combining xDSL filter chokes and capacitors in one size-optimized casing, LCR Modules are designed according to standards of ANSI, ETSI, ITU, and various country requirements. Modules have uniform pinning and are fully RoHS compliant. All provide optimal filter characteristics in insertion loss, return loss, and stop band attenuation.

International Manufacturing Services, Inc. (IMS)    Portsmouth, RI 02871
Mar 29, 2005 Measuring .442 x .184 x .030 in., S Band 2.4 GHZ planar surface mountable thick film filter features passband up to 2,500 MHz with passband ripple of .01 dB. Second and third harmonic rejection is 25 dB min, and VSWR is 1.1:1. Compact unit, which incorporates 5 sections with 50 ohm input and output, is suited for applications such as wireless local area networks, microwave communication links, radar systems, and wireless sensors and controls.

PCB Piezotronics Inc.    Depew, NY 14043 2495
Oct 14, 2004 Series 474 In-Line Low Pass Filters, used in any low impedance system, attach directly to input of readout instruments to eliminate potentially troublesome high-amplitude resonance peaks. Series 477 In-Line Low Pass Filters for ICP® sensors provide 12 dB/octave or 40 dB/decade roll-off for attenuating high frequency, high-amplitude signals associated with structural resonances. Custom filter options and in-line signal attenuators are available.

International Mfg. Services, Inc.    Portsmouth, RI 02871 2435
Apr 30, 2004 Measuring .550 x .440 x .025 in., thick film drop-in low pass filter is integral, planar, and surface-mountable. Bilaterally symmetric design incorporates lumped/distributed parameters and contains 7 sections with 50 Ohm input and output. Passband is 1,200 MHz ±250 MHz, VSWR is 1.1 VSWR over 20% bandwidth, and insertion loss is .5 dB over entire passband. Rejection at 2.5 GHz is –25 dB min and is maintained to 4.6 GHz.

Alligator Technologies    Costa Mesa, CA 92627
Jul 23, 2003 Low-pass filter module AAF-2Fe provides 2 channels of noise reduction and anti-alias filtering that is tunable to bandwidths from 0.1-200 kHz. Compatible with 8, 12, and 16-bit A/D modules and boards, product incorporates features such as differential instrumentation gain, factory set to specification from 1x-10000x; true minimal 1.5 Vm or better DC offset; and +10 V input and output range. Output impedance is less than 0.001 ohms, and common mode rejection is 90-110 dB.

TDL Technology    Las Cruces, NM 88012-9736
Oct 02, 2002 Model 601 contains tunable 8-pole Butterworth highpass filter followed by tunable 8-pole Butterworth lowpass filter. Both filter responses are flat in pass band (unity gain) and roll off at 96 dB per octave beyond corner frequency. Corner frequencies can be set from 100 Hz to 40 kHz at front panel or over serial link from PC. Unit includes input analog anti-aliasing lowpass filter, variable gain output amplifier, and analog lowpass output filter.

Alligator Technologies    Costa Mesa, CA 92627
Jan 08, 2002 AAF-2, 2 to 8 channel, tunable low-pass filter features selectable frequency ranges in Butterworth, Bessel, Cauer, or Linear Phase characteristics that eliminate noise and alias errors while providing DC and Gain accuracy for 16-bit data acquisition systems. Filter channels are fully isolated from PCI bus, and are continuously tunable from 0.1Hz to 200kHz. Input and output range is up to ±l0V while gain accuracy is ±0.00ldB@lkHz.