CLC5506 is a high performance low noise amplifier with programmable gain
The CLC5506 is a low‑noise, programmable‑gain amplifier designed for cellular base stations, wireless local loop, radar, and RF/IF subsystems where gain control is required. It offers a differential input and output, operates from a single 5 V rail, and supports a 600 MHz bandwidth across its gain range.
Key features include a maximum gain of 26 dB, 16 dB of attenuation in 0.25 dB steps via a three‑line MICROWIRE interface, a 4.8 dB noise figure at 26 dB gain, and a compact SOIC‑14 package. The device operates from –40 °C to +85 °C and includes power‑down mode for low‑power applications.
| Maximum gain | 26 dB |
|---|---|
| Gain control range | 16 dB |
| Attenuation step size | 0.25 dB |
| Noise figure (at 26 dB gain) | 4.8 dB |
| Output third‑order intercept point (IP3) | +22 dBm @ 18 dB gain |
| Supply voltage | 5 V |
| Supply current | 75 mA |
| Supply shutdown current | 35 µA |
| Package | SOIC‑14 |
| Operating temperature range | -40 °C to +85 °C |
| Bandwidth | 600 MHz |
| Differential input resistance | 200 Ω |
| Differential input capacitance | 0.5 pF |
| Differential output resistance | 5 kΩ |
| Differential output capacitance | 0.5 pF |
| Maximum MICROWIRE clock speed | 1 MHz |
| Power‑down leakage current | <35 pA |
The device provides a maximum gain of 26 dB.
Gain is set via a 6‑bit MICROWIRE interface that offers 64 steps of 0.25 dB each, giving a total gain range of 10 dB to 26 dB.
The amplifier operates from a 5 V supply and draws about 75 mA in normal operation.
It is rated for industrial temperatures from –40 °C to +85 °C.