MAX9995

19-3383; Rev 0; 8/04 Dual, SiGe, High-Linearity, 1700MHz to 2200MHz Downconversion Mixer with LO Buffer/Switch General Description The MAX9995 dual, high-linearity, downconversion mixer provides 6.1dB gain, +25.6dBm IIP3, and 9.8dB NF for UMTS/WCDMA, DCS, and PCS base-station applications. The MAX9995 is ideal for low-side LO injection. (For a mixer variant optimized for high-side LO injection, contact the factory.) This device integrates baluns in the RF and LO ports, a dual-input LO selectable switch, an LO buffer, two doublebalanced mixers, and a pair of differential IF output amplifiers. The MAX9995 requires a typical LO drive of 0dBm and supply current is guaranteed to be below 380mA. These devices are available in a compact 36-pin thin QFN package (6mm × 6mm) with an exposed paddle. Electrical performance is guaranteed over the extended temperature range, from TC = -40°C to +85°C. Features ♦ 1700MHz to 2200MHz RF Frequency Range ♦ 1400MHz to 2000MHz LO Frequency Range (MAX9995) ♦ 1900MHz to 2400MHz LO Frequency Range (Contact Factory) ♦ ♦ ♦ ♦ 40MHz to 350MHz IF Frequency Range 6.1dB Conversion Gain +25.6dBm Input IP3 9.8dB Noise Figure MAX9995 ♦ 66dBc 2RF–2LO Spurious Rejection at PRF = -10dBm ♦ Dual Channels Ideal for Diversity Receiver Applications ♦ Integrated LO Buffer ♦ Integrated RF and LO Baluns for Single-Ended Inputs ♦ Low -3dBm to +3dBm LO Drive ♦ Built-In SPDT LO Switch with 50dB LO1–LO2 Isolation and 50ns Switching Time ♦ 44dB Channel-to-Channel Isolatio...