低电压，高隔离，双路双通道RF /视频多路复用器 Low-Voltage, High-Isolation, Dual 2-Channel RF/Video Multiplexer
General Description
The MAX4589 low-voltage, dual 2-channel multiplexer is designed for RF and video signal processing at frequencies up to 200MHz in 50Ω and 75Ω systems. On-chip functions are controlled through either a parallel interface or an SPI™/QSPI™/MICROWIRE™ serial interface.
Each channel of the MAX4589 is designed using a “T” switch configuration, ensuring excellent high-frequency off-isolation. The MAX4589 has low on-resistance of 60Ω max, with an on-resistance match across all chan nels of 4Ωmax. Additionally, on-resistance is flat across the specified signal range 2Ωmax. The off leakage current is under 1nA at TA= +25°C, and less
than 10nA at TA= +85°C.
Features
♦Low Insertion Loss: < -2.5dB up to 100MHz
♦High Off-Isolation: -74dB at 10MHz
♦Low Crosstalk: < -70dB up to 10MHz
♦20MHz -0.1dB Signal Bandwidth
♦200MHz -3dB Signal Bandwidth
♦60Ωmax On-Resistance with ±5V Supplies
♦4Ωmax On-Resistance Matching with ±5V Supplies
♦2Ω max On-Resistance Flatness with ±5V Supplies
♦+2.7V to +12V Single-Supply Operation
±2.7V to ±6V Dual-Supply Operation
♦Low Power Consumption: <20µW
♦Rail-to-Rail®‚ Bidirectional Signal Handling
♦Parallel or SPI/QSPI/MICROWIRE-Compatible Serial Interface
♦>±2kV ESD Protection per Method 3015.7
♦TTL/CMOS-Compatible Inputs with VL= +5V