The HMC276QS24 is a low-cost 4x2 switch matrix in a 24-lead QSOP package for use in RF multiplexing applications from 700 to 3000 MHz. It features a positive voltage controlled 4 bit decoder and may be used in either 75 ohm or 50 ohm systems.
The HMC276QS24 is a low-cost GaAs MMIC 4x2 switch matrix designed for RF multiplexing applications between 700 and 3000 MHz. It features an integrated 4-bit decoder and operates with a single positive supply voltage of +5V. The device is suitable for use in both 50 ohm and 75 ohm systems, with recommended loading impedances of 62.5 ohms on inputs and 75 ohms on outputs.
The datasheet provides detailed electrical specifications, including insertion loss, isolation, return loss, and switching speed across the operating frequency range. It also includes truth tables for control logic, application circuits for configuring a 4x4 switch matrix, and absolute maximum ratings for bias and control voltages.
| Operating Frequency | 0.7 - 3.0 GHz |
|---|---|
| Supply Voltage | +5V |
| Package Type | 24-lead QSOP |
| Insertion Loss (700-3000 MHz) | Typ. 7.0 dB |
| Switching Speed (tRISE / tFALL) | 140 ns |
| Operating Temperature | -40 to +85 °C |
The recommended loading impedance is 62.5 ohms on each input.
Yes, the switch may be used in either 75 ohm or 50 ohm systems.