Port Diagram
A top-down view of the MBAL-1440CH package outline drawing is shown below. The MMIC baluns are passive reciprocal devices allowing either single ended to differential or differential to single ended conversion.

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The MBAL-1440 is a MMIC isolation balun. Passive GaAs MMIC technology allows production of smaller constructions that replace larger form factor circuit board constructions. Tight fabrication tolerances allow for less unit to unit variation than traditional balun technologies. The MBAL-1440 is available as a wire bondable chip. Low unit to unit variation allow for accurate simulations using the provided S3P file taken from measured production units.
| Part Number | Description | Package | Green Status | Product Lifecycle | Export Classification |
|---|---|---|---|---|---|
| MBAL-1440CH | MMIC 14-40GHz Isolation Balun | CH | REACH RoHS | Released | EAR99 |
| Part Number | Description | Package | Green Status | Product Lifecycle | Export Classification |
|---|---|---|---|---|---|
| MBAL-1440CH | MMIC 14-40GHz Isolation Balun | CH | REACH RoHS | Released | EAR99 |
MBAL-1440CH
MMIC 14-40GHz Isolation Balun
| Revision Code | Revision Date | Comment |
|---|---|---|
| - | 2018-05-01 | Datasheet Initial Release |
| A | 2020-07-01 | Specs table update |
| B | 2022-09-01 | Updated Max Power Handling |
MBAL-1440CH
MMIC 14-40GHz Isolation Balun
A top-down view of the MBAL-1440CH package outline drawing is shown below. The MMIC baluns are passive reciprocal devices allowing either single ended to differential or differential to single ended conversion.
| Port | Function | Description | DC Equivalent Circuit |
|---|---|---|---|
| GND | Ground | CH package ground path is provided through the substrate and ground bond pads. | |
| Port 1 | Common Port / In (Unbalanced) | The common port is DC open to ground. | |
| Port 2 | Out 1 / 0° Port (Balanced) | The 0° port is DC short to ground. | |
| Port 3 | Out 2 / 180° Port (Balanced) | The 180° port is DC short to ground. |
MBAL-1440CH
MMIC 14-40GHz Isolation Balun
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 |
| Power Handling, at any Port | 30 | dBm |
| Parameter | Details | Rating |
|---|---|---|
| Dimensions | - | 2.28 x 1.25 mm |
MBAL-1440CH
MMIC 14-40GHz Isolation Balun
The electrical specifications apply at TA=+25°C in a 50Ω system. Min and Max limits are guaranteed at TA=+25°C. All bare die are 100% DC tested and visually inspected.
| Parameter | Test Conditions | Minimum Frequency (GHz) | Maximum Frequency (GHz) | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| Amplitude Balance | - | 14 | 40 | - | 0.2 | 0.8 | dB |
| Common Mode Rejection | - | 14 | 40 | 19 | 35 | - | dB |
| Excess Insertion Loss (dB) | - | 14 | 40 | - | 1.5 | 5 | dB |
| Impedance | - | - | - | - | 50 | - | Ω |
| Insertion Loss as a Mode Converter | - | 14 | 40 | - | 3 | 5.65 | dB |
| Isolation | - | 14 | 40 | 8 | 13 | - | dB |
| Nominal Phase Shift | - | 14 | 40 | - | 180 | - | ° |
| Phase Balance | - | 14 | 40 | - | 1.1 | 8.5 | ° |
| VSWR | - | 14 | 40 | - | 1.8 | - | |
| Impedance Ratio | - | - | - | - | 2:1 | - |
| Parameter | Test Conditions | Minimum Frequency (GHz) | Maximum Frequency (GHz) | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| Amplitude Balance | - | 14 | 40 | - | 0.2 | 0.8 | dB |
| Common Mode Rejection | - | 14 | 40 | 19 | 35 | - | dB |
| Excess Insertion Loss (dB) | - | 14 | 40 | - | 1.5 | 5 | dB |
| Impedance | - | - | - | - | 50 | - | Ω |
| Insertion Loss as a Mode Converter | - | 14 | 40 | - | 3 | 5.65 | dB |
| Isolation | - | 14 | 40 | 8 | 13 | - | dB |
| Nominal Phase Shift | - | 14 | 40 | - | 180 | - | ° |
| Phase Balance | - | 14 | 40 | - | 1.1 | 8.5 | ° |
| VSWR | - | 14 | 40 | - | 1.8 | - | |
| Impedance Ratio | - | - | - | - | 2:1 | - |
MBAL-1440CH
MMIC 14-40GHz Isolation Balun
MBAL-1440CH
MMIC 14-40GHz Isolation Balun