Port Diagram
An X-ray top-down view of the MBAL-0208SMG package outline drawing is shown below. The MMIC Baluns are passive reciprocal devices allowing either signal splitting or combining.
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Device Overview
General Description
The MBAL-0208SMG is a MMIC surface mount high isolation balun. This balun features excellent amplitude and phase balance across its 2 to 8 GHz frequency range and offers a 2:1 impedance ratio. It has significant isolation, reducing the reflection of unwanted common mode signals. The MBAL-0208SMG is form-fit-function compatible with the BAL-0208SMG and is intended for customers supporting existing designs. For new designs, we recommend the MBAL-0214PSM, which offers improved performance in a compact 1.3 x 2mm DFN package.
Features
- 2:1 Impedance Ratio
- Broadband 2 to 8 GHz Balun (Balanced to Unbalanced Transformer)
- High Isolation, 18dB Typical
- Insertion Loss as a Mode Converter, 1.9 dB Typical
- Common Mode Rejection, 32 dB Typical
Applications
- Test Equipment
- Electronic Warfare
- Radar and satellite communications
- High Channel Count Systems
Functional Block Diagram
Part Ordering Options
| Part Number | Description | Package | Green Status | Product Lifecycle | Export Classification |
|---|---|---|---|---|---|
| MBAL-0208SMG | 2 - 8 GHz MMIC Isolation Balun | DFN | REACH RoHS | Released | EAR99 |
| EVB-MBAL-0208S | Evaluation Board, 2-8 GHz Passive MMIC FFF Package Balun | EVB | REACH RoHS | Released | EAR99 |
| Part Number | Description | Package | Green Status | Product Lifecycle | Export Classification |
|---|---|---|---|---|---|
| MBAL-0208SMG | 2 - 8 GHz MMIC Isolation Balun | DFN | REACH RoHS | Released | EAR99 |
| EVB-MBAL-0208S | Evaluation Board, 2-8 GHz Passive MMIC FFF Package Balun | EVB | REACH RoHS | Released | EAR99 |
MBAL-0208SMG
2 - 8 GHz MMIC Isolation Balun
Table Of Contents
- Device Overview
- Port Configuration and Functions
- Revision History
- Specifications
- Mechanical Data
- Footprint Image
- Evaluation Board
Revision History
| Revision Code | Revision Date | Comment |
|---|---|---|
| - | 2026-02-24 | Initial Release |
MBAL-0208SMG
2 - 8 GHz MMIC Isolation Balun
Port Configuration and Functions
Port Functions
| Port | Function | Description | DC Equivalent Circuit |
|---|---|---|---|
| Ground Paddle | Gnd | Ground paddle should be connected to RF ground |  |
| Pin 1 | Common/Input | Pin 1 is DC open. |  |
| Pin 2 | Out 1 / 0° Port (Balanced) | Pin 2 is DC open. | |
| Pin 3 | Out 2 / 180° Port (Balanced) | Pin 3 is DC open. | |
MBAL-0208SMG
2 - 8 GHz MMIC Isolation Balun
Specifications
Absolute Maximum Ratings
The Absolute Maximum Ratings indicate limits beyond which damage may occur to the device. If these limits are exceeded, the device may be inoperable or have a reduced lifetime.
| Parameter | Maximum Rating | Unit |
|---|---|---|
| Maximum Operating Temperature | 100 | °C |
| Maximum Storage Temperature | 125 | °C |
| Minimum Operating Temperature | -55 | °C |
| Minimum Storage Temperature | -65 | °C |
Package Information
| Parameter | Details | Rating |
|---|---|---|
| ESD | 250 to < 500 Volts | HBM Class 1A |
| Dimensions | - | 2.69 x 2.90 mm |
| Moisture Sensitivity Level | - | MSL 1 |
MBAL-0208SMG
2 - 8 GHz MMIC Isolation Balun
Electrical Specifications
The electrical specifications apply at TA=+25°C in a 50Ω system. Min and Max limits are guaranteed at TA=+25°C.
| Parameter | Test Conditions | Minimum Frequency (GHz) | Maximum Frequency (GHz) | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| Insertion Loss as a Mode Converter | Temp = 25°C | 2 | 8 | - | 1.9 | - | dB |
| Nominal Phase Shift | Temp = 25°C | - | - | - | 180 | - | ° |
| Common Port Return Loss | Temp = 25°C | 2 | 8 | - | 13 | - | dB |
| Common Mode Return Loss | Temp = 25°C | 2 | 8 | - | 10 | - | dB |
| Output Return Loss | Temp = 25°C | 2 | 8 | - | 15 | - | dB |
| Isolation | Temp = 25°C | 2 | 8 | - | 18 | - | dB |
| Amplitude Balance | Temp = 25°C | 2 | 8 | - | 0.1 | - | dB |
| Phase Balance | Temp = 25°C | 2 | 8 | - | 2.4 | - | ° |
| Common Mode Rejection | Temp = 25°C | 2 | 8 | - | 32 | - | dB |
| Impedance | Temp = 25°C | - | - | - | 50 | - | Ω |
| Impedance Ratio | - | 2 | 8 | - | 2:1 | - |
| Parameter | Test Conditions | Minimum Frequency (GHz) | Maximum Frequency (GHz) | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| Insertion Loss as a Mode Converter | Temp = 25°C | 2 | 8 | - | 1.9 | - | dB |
| Nominal Phase Shift | Temp = 25°C | - | - | - | 180 | - | ° |
| Common Port Return Loss | Temp = 25°C | 2 | 8 | - | 13 | - | dB |
| Common Mode Return Loss | Temp = 25°C | 2 | 8 | - | 10 | - | dB |
| Output Return Loss | Temp = 25°C | 2 | 8 | - | 15 | - | dB |
| Isolation | Temp = 25°C | 2 | 8 | - | 18 | - | dB |
| Amplitude Balance | Temp = 25°C | 2 | 8 | - | 0.1 | - | dB |
| Phase Balance | Temp = 25°C | 2 | 8 | - | 2.4 | - | ° |
| Common Mode Rejection | Temp = 25°C | 2 | 8 | - | 32 | - | dB |
| Impedance | Temp = 25°C | - | - | - | 50 | - | Ω |
| Impedance Ratio | - | 2 | 8 | - | 2:1 | - |
MBAL-0208SMG
2 - 8 GHz MMIC Isolation Balun
Mixed Mode Scattering Parameters
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MBAL-0208SMG
2 - 8 GHz MMIC Isolation Balun
Typical Performance Scattering Parameters
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Measured data is de-embedded from fixture using AFR.
MBAL-0208SMG
2 - 8 GHz MMIC Isolation Balun
Mechanical Data
MBAL-0208SMG
2 - 8 GHz MMIC Isolation Balun
Footprint Image
Download : Footprint Drawing
MBAL-0208SMG
2 - 8 GHz MMIC Isolation Balun
Evaluation Board - Outline Drawing
