BAL-2690D3U RF/IF and RFID |
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| Allicdata Part #: | 497-14241-2-ND |
| Manufacturer Part#: |
BAL-2690D3U |
| Price: | $ 0.11 |
| Product Category: | RF/IF and RFID |
| Manufacturer: | STMicroelectronics |
| Short Description: | BALUN TRANSFORMER FLIPCHIP |
| More Detail: | RF Balun 2.402GHz ~ 2.48GHz 50 / - Ohm 4-WFBGA, FC... |
| DataSheet: |  BAL-2690D3U Datasheet/PDF |
| Quantity: | 5000 |
| 5000 +: | $ 0.10049 |
| Series: | -- |
| Packaging: | Tape & Reel (TR) |
| Part Status: | Obsolete |
| Frequency Range: | 2.402GHz ~ 2.48GHz |
| Impedance - Unbalanced/Balanced: | 50 / - Ohm |
| Phase Difference: | 10° |
| Insertion Loss (Max): | 1.1dB |
| Return Loss (Min): | 14dB |
| Package / Case: | 4-WFBGA, FCBGA |
| Mounting Type: | Surface Mount |
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Baluns, also known as Balanced to Unbalanced Transformer, is a device that is used to match impedance between two circuits, such as balanced and unbalanced circuits. BAL-2690D3U is a kind of balun specifically designed for RF and microwave applications. This article explains its application fields and working principle.
The BAL-2690D3U is an impedance conversion balun that is used to match impedance between 50Ω-balanced to 100 or 200Ω-unbalanced circuits. Its frequency range is from 0.3GHz to 3.0GHz, and its insertion loss is less than 0.25dB. Its pass-band VSWR is also very low, and under 1.2:1. What’s more, it features a very wide dynamic range, and an infinite input and output matching.
The BAL-2690D3U has a wide range of applications. It can be used to match impedance between circuits in RF components, such as amplifiers, filters, mixers, and couplers. This balun can also be used to match impedance between microwave components, such as antennas, splitter/combiners, antennas, and amplifiers. Additionally, it is suitable for other RF and microwave applications, such as cellular base stations, instrumentation, satellite communication systems, digital radio communication systems, and cellular phone networks.
The working principle of the BAL-2690D3U follows the basic rule of baluns that a balanced impedance can be transformed into an unbalanced impedance. The transformer consists of a primary winding and a secondary winding configured in the shape of a “T”. The primary winding is connected as a high impedance to the balanced port, while the secondary winding is connected as low impedance to the unbalanced port. When a signal is applied to the primary winding, a voltage is induced in the secondary winding which produces two out-of-phase voltages. As a result, the unbalanced output voltage is lower than the balanced input voltage.
The BAL-2690D3U is an ideal balun for RF and microwave applications for its wide working frequency, low insertion loss, high VSWR, and wide dynamic range. It has a wide range of applications, and is suitable for many RF and microwave components.
The specific data is subject to PDF, and the above content is for reference