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CLC5526MSAX DescriptionCLC5526MSAX CategoriesCLC5526MSAX ManufacturerCLC5526MSAX Datasheet (PDF)CLC5526MSAX Price & AvailabilityCLC5526MSAX Features
CLC5526MSAX DescriptionThe CLC5526 is a high performance, digitally controlled, variable-gain amplifier (DVGA). It has been designed for use in a broad range of mixed signal and digital communication applications such as mobile radio, cellular base stations and back-channel modems where automatic-gain-control (AGC) is required to increase system dynamic range. The CLC5526 has differential input and output, allowing large signal swings on a single 5V rail. The input impedance is 200. The differential output impedance is 600 and is designed to drive a 1 k differential load. The output amplifier has excellent intermodulation performance. The CLC5526 is designed to accept signals from RF elements and maintain a terminated impedance environment. The CLC5526 maintains a 350 MHz bandwidth over its entire gain and attenuation range from +30 dB to -12 dB. Internal clamping ensures very fast overdrive recovery. Two tone intermodulation distortion is excellent: at 150 MHz, 1 Vpp it is -64 dBc. Input signals to the CLC5526 are scaled by an accurate, differential R-2R resistive ladder with an input impedance of 200. A scaled version of the input is selected under digital control and passed to the internal amplifier. The input common mode level is set at 2.4V via a bandgap referenced bias generator which can be overridden by an external input. Following the resistive ladder is a fixed, 30 dB gain amplifier. The output stage common mode voltage of the CLC5526 is set to 3V, by internal, positive supply connected resistors. Digital control of the CLC5526 is accomplished by a 3-bit parallel gain control input and a data valid pin to latch the data. If the data is not latched, the DVGA is transparent to gain control updates. All digital inputs are TTL/CMOS compatible. A shutdown input reduces the CLC5526 supply currrent to a few mA. During shutdown, the input termination is maintained and current attenuation settings are held. The CLC5526 operates over the industrial temperature range of -4 CLC5526MSAX ParametersProducts Similar to CLC5526MSAXOther Components PHB20NQ20T,118 PSU4330A 35086 09 33 024 2701 MB2411JW03-C-1A Keywords
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