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RFSA2514/2524 5-Bit Serial-Controlled Digital Step Attenuators
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Wednesday, July 18, 2012:
RFMD’s new RFSA2514/2524 5-bit digital step attenuators (DSAs) feature high linearity over their entire gain control range with excellent step accuracy in 0.5dB (RFSA2514) or 1dB (RFSA2524) steps. They are programmed via a serial mode control interface that is both 3V and 5V compatible. They also offer a rugged Class 1C HBM ESD rating via on-chip ESD circuitry. The MCM package is footprint-compatible with most 24-pin, 4mm x 4mm, QFN packages.
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Features
Frequency Range 50MHz to 4000MHz
Attenuation Range and Step
RFSA2514: 15.5dB, 0.5dB
RFSA2524: 31dB, 1dB
Step Accuracy: +/-(0.1dB + 5% attenuation range)
Insertion Loss: 1.2dB @ 2GHz
High Linearity: IIP3 >48dBm For All Steps
3V and 5V Logic-Compatible
Serial Programming Interface
Power-Up Programming Modes
Applications
Transceiver RF and IF Applications
2G, 3G, LTE, WiMax/WiFi
Wireless Data, Satellite Terminals
Test Equipment
Both the RFSA2514 and RFSA2524 are currently available in production quantities. Pricing begins at $1.60 each for 750 pieces.
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