This document describes a 50 Ω/50+j50 balun transformer for the 2.45 GHz ISM band. The balun transformer has features such as low insertion loss, low amplitude imbalance, and low phase imbalance. It is suitable for Bluetooth applications.
The BAL-2593D5U is a balun transformer designed to transform a single-ended signal to differential signals for Bluetooth applications. It is customized for STLC2592/2593/2500D transceivers and operates in the 2.4 GHz ISM band with low insertion loss and low amplitude and phase imbalance.
| Frequency range | 2400 - 2500 MHz |
|---|---|
| Insertion loss | 1.0 - 1.2 dB |
| Return loss | 10 - 17 dB |
| Phase imbalance | 0 - 20 degrees |
| Amplitude imbalance | 2 - 2 dB |
| Operating temperature | -30 to +85 °C |
| Input power | -10 dBm |
| Package type | Flip Chip |
The nominal input impedance is 50 Ohms.
The nominal differential output impedance is 50 + j50 Ohms.