The HMC960LP4E is a digitally programmable dual channel variable gain amplifier. It supports discrete gain steps from 0 to 40 dB in precise 0.5 dB steps. It features a glitch free architecture to provide exceptionally smooth gain transitions. The device has matched gain paths which provide excellent quadrature balance over a wide signal bandwidth. The HMC960LP4E provides an SPI programmable input impedance of 100Ω differential or 400Ω differential (default). Externally controlled common mode output feature enables the HMC960LP4E to provide a flexible output interface to other parts in the signal path. Gain can be controlled via either a parallel interface (GC[6:0]) or via the read/write serial port (SPI). Housed in a compact 4x4mm (LP4) SMT QFN package, the HMC960LP4E requires minimal external components and provides a low cost alternative to more complicated switched amplifier architectures. Applications * Baseband I/Q Transceivers * Direct Conversion & Low IF Transceivers * Diversity Receivers * ADC Drivers * Adaptive Gain Control * Low Noise: 6 dB NF * High Linearity: Output IP3 +30 dBm * Variable Gain: 0 to 40 dB * High Bandwidth: DC to 100 MHz * Precise Gain Accuracy: 0.5 dB Gain Step * Excellent Magnitude & Phase Response * Externally Controlled Common Mode Output Level * Parallel or Serial Gain Control * Read/Write Serial Port Interface (SPI) * 24 Lead 4x4 mm SMT Package 16 mm² * Programmable Input Impedance (400Ω Differential or 100Ω Differential)