The GaAs Digital Footfall Attenuators accommodate 2 bit (CMD281, CMD282, CMD281C3 and CMD282C3) and 5 bit models (CMD279, CMD280, CMD279C3 and CMD280C3) with footfall ascendancy of 2, 4 and 0.5 dB. The units action a accretion ascendancy of 50 dB and affluence the architecture of aerial activating ambit receivers and instrumentation. The attenuators affection a ascendancy voltage of 0/ -5 V and ascribe IP3 of 42 dBm.
Chelmsford, MA – August 27, 2018 – Custom MMIC, a arch developer of achievement apprenticed caked bake chip circuits (MMICs), has launched a new artefact band of GaAs Digital Footfall Attenuators (DSA).
The DSA ancestors is advised to affluence the architecture of aerial activating ambit receivers and instrumentation. These applications generally charge achieve accretion ascendancy of 50dB or more. Fine footfall DSAs (e.g., 0.5dB Least Significant Bit [LSB]) are generally acclimated for these applications. However, back a ample abrasion change is needed, it is added able to use a lower bit calculation base (e.g., 2, 4 or alike 8 dB LSB) footfall DSA MMIC as these genitalia action lower admittance accident and beneath ascendancy curve for easier architecture implementation.
Table 1 summarizes the eight new articles are now accessible accoutrement up to 40GHz, with 0.5, 2 and 4dB footfall admeasurement options. Die and QFN packaged versions are available. The CMD281, CMD282, CMD281C3 and CMD282C3 represent antecedent offerings for base ascendancy 2 bit DSAs with 2 and 4 dB footfall control. The CMD279, CMD280, CMD279C3 and CMD280C3 are the added acceptable 0.5dB footfall ascendancy accessories with 15.5dB ambit (5 bit). All accessories are distinct ascendancy band per bit.
Digital Step Frequency Number of Insert. Loss Attn. Range Step Size Input Control PackageAttenuator (GHz) Bits (dB) (dB) (dB) IP3 (dBm) Voltage (V)Part Number
CMD282 DC – 40 2 1.5 12 4 42 0 / -5 DIE
CMD281 DC – 40 2 1.2 6 2 42 0 / -5 DIE
CMD280 DC – 30 5 3 15.5 0.5 42 0 / -5 DIE
CMD281C3 DC – 22 2 1.5 6 2 42 0 / -5 3×3 mm QFN
CMD282C3 DC – 22 2 1.9 12 4 42 0 / -5 3×3 mm QFN
CMD280C3 DC – 18 5 3 15.5 0.5 42 0 / -5 3×3 mm QFN
CMD279C3 2 – 18 5 3.5 15.5 0.5 42 0 / 5 3×3 mm QFN
CMD279 2 – 30 5 3.5 15.5 0.5 42 0 / 5 DIE
Visit https://www.custommmic.com/digital-attenuators/ for added advice and to download abounding datasheets and S-parameter data.
About Custom MMIC
Custom MMIC is a arch developer of achievement apprenticed caked bake chip circuits (MMICs). Embracing their customers’ challenges, the aggregation offers both a growing ancestors of high-performance MMIC accepted articles and avant-garde custom-design services. Their engineering aggregation is awful accomplished in a ample ambit of III-V processes (e.g. GaAs, GaN, InP, InGaP) and has longstanding relationships with the arch foundries. Custom MMIC specializes in RF through millimeter-wave circuits confined assorted markets including wireless and active communications, satellite, alarm systems, cellular basement and instrumentation. The aggregation was founded in 2006 and is based in Chelmsford, MA. For added information, visit www.custommmic.com.
Company Contact: John Greichen
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