特点
Wide RF Frequency Range: 0.7GHz to 1.4GHz
17.1dBm Typical Input IP3 at 1GHz
On-Chip RF Output Transformer
On-Chip 50 Ohm Matched LO and RF Ports
Single-Ended LO and RF Operation
Integrated LO Buffer: –5dBm Drive Level
Low LO to RF Leakage: – 44dBm Typical
Noise Figure: 13.6dB
Wide IF Frequency Range: 1MHz to 400MHz
Enable Function with Low Off-State Leakage Current
Single 5V Supply
Small 16-Lead QFN Plastic Package
典型应用
描述
The LT?5519 mixer is designed to meet the high linearity requirements of wireless and cable infrastructure transmission systems. A high speed, internally 50 Ohm matched, LO amplifier drives a double-balanced mixer core, allowing the use of a low power, single-ended LO source. An RF output transformer is integrated, thus eliminating the need for external matching components at the RF output, while reducing system cost, component count, board area and system-level variations. The IF port can be easily matched to a broad range of frequencies for use in many different applications.
The LT5519 mixer delivers +17.1dBm typical input 3rd order intercept point at 1GHz with IF input signal levels of –10dBm. The input 1dB compression point is typically +5.5dBm. The IC requires only a single 5V supply.