Package Information
| Parameter | Details | Rating |
|---|---|---|
| Weight | - | 127g |
| Dimensions | - | 91.44 x 27.94 mm |
Sales: 408-778-9952 | General: 408-778-4200 | Fax: 408-778-4300
Sales & Customer Support: sales@markimicrowave.com
Tech Support: support@markimicrowave.com
Device Overview
General Description
The BAL-0026 is a broadband balun, featuring high isolation and is hand-tuned for optimal phase and amplitude balance over a 300 kHz to 26.5 GHz bandwidth. It serves as an excellent choice for analog to digital converters, balanced receivers, baseband digital modulations, and signal integrity enhancement.
Features
- 300 kHz to 26.5 GHz Balun (Balanced to Unbalanced Balun Transformer
- 1:2 Transformer (50Ω unbalanced, 100 Ω differential/50 Ω balanced port)
- Termination insensitive: Particularly suited to testing poorly matched or non-50 Ω devices or for extending 2 port VNAs for differential testing
Applications
- Analog to Digital Converters
- Balanced Receivers
- Baseband Digital Modulation
- Signal Integrity
Functional Block Diagram
Part Ordering Options
| Part Number | Description | Connectors | Green Status | Product Lifecycle | Export Classification |
|---|---|---|---|---|---|
| BAL-0026 | Broadband Isolation Balun (300KHz to 26.5GHz) | Standard | REACH RoHS |
Released | EAR99 |
| Part Number | Description | Connectors | Green Status | Product Lifecycle | Export Classification |
|---|---|---|---|---|---|
| BAL-0026 | Broadband Isolation Balun (300KHz to 26.5GHz) | Standard | REACH RoHS |
Released | EAR99 |
BAL-0026
Broadband Isolation Balun (300KHz to 26.5GHz)
Table Of Contents
Revision History
| Revision Code | Revision Date | Comment |
|---|---|---|
| - | 2014-01-01 | Datasheet initial Release |
| A | 2016-01-01 | Typical Performance Plots Updated |
| B | 2019-10-01 | Mixed Mode Scattering Parameters added |
| C | 2019-11-01 | RoHS Compliant assembly |
| D | 2020-07-01 | Specs Table Update |
| E | 2020-10-01 | Specs Table Update |
BAL-0026
Broadband Isolation Balun (300KHz to 26.5GHz)
Port Configuration and Functions
Port Functions
| Port | Function | Connector Type | Description | Equivalent Circuit for Package |
|---|---|---|---|---|
| 0° Port (Balanced) | 0° Port | SMAF | The 0° port is DC connected to the common port through a resistor and to ground through a resistor. | 
|
| 180° Port (Balanced) | 180° Port | SMAF | The 180° port is DC shorted to ground. | 
|
| Common Port (Unbalanced) | RF Input | SMAF | The common port is DC connected to the 0° port through a resistor and to ground through a resistor. | 
|
BAL-0026
Broadband Isolation Balun (300KHz to 26.5GHz)
Specifications
BAL-0026
Broadband Isolation Balun (300KHz to 26.5GHz)
Electrical Specifications
Specifications guaranteed from -55 to +100°C, measured in a 50Ω system.
| Parameter | Test Conditions | Minimum Frequency (GHz) |
Maximum Frequency (GHz) |
Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| Amplitude Balance | - | 0.0003 | 26.5 | - | 0.5 | 1.2 | dB |
| Common Mode Rejection | - | 0.0003 | 26.5 | 22 | 30 | - | dB |
| Group Delay | - | 0.0003 | 26.5 | - | 520 | - | ps |
| Insertion Loss as a Mode Converter | - | 0.0003 | 26.5 | - | 2.5 | 4.5 | dB |
| Isolation | - | 1 | 26.5 | - | 24 | - | dB |
| Nominal Phase Shift | - | 0.0003 | 26.5 | - | 180 | - | ° |
| Phase Balance | - | 0.0003 | 26.5 | - | 3 | 10 | ° |
| Risetime/Falltime 1 | - | 0.0003 | 26.5 | - | 7.5 | - | ps |
| RMS Group Delay Ripple | - | 0.0003 | 26.5 | - | 8.2 | - | ps |
| Total Input Power | - | 0.0003 | 26.5 | - | - | 1 | W |
| VSWR (Input) | - | 0.0003 | 26.5 | - | 1.5 | - | - |
| VSWR (Output) | - | 0.0003 | 26.5 | - | 1.55 | - | - |
| Weight | - | 0.0003 | 26.5 | - | 125 | - | g |
| Parameter | Test Conditions | Minimum Frequency (GHz) |
Maximum Frequency (GHz) |
Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| Amplitude Balance | - | 0.0003 | 26.5 | - | 0.5 | 1.2 | dB |
| Common Mode Rejection | - | 0.0003 | 26.5 | 22 | 30 | - | dB |
| Group Delay | - | 0.0003 | 26.5 | - | 520 | - | ps |
| Insertion Loss as a Mode Converter | - | 0.0003 | 26.5 | - | 2.5 | 4.5 | dB |
| Isolation | - | 1 | 26.5 | - | 24 | - | dB |
| Nominal Phase Shift | - | 0.0003 | 26.5 | - | 180 | - | ° |
| Phase Balance | - | 0.0003 | 26.5 | - | 3 | 10 | ° |
| Risetime/Falltime 1 | - | 0.0003 | 26.5 | - | 7.5 | - | ps |
| RMS Group Delay Ripple | - | 0.0003 | 26.5 | - | 8.2 | - | ps |
| Total Input Power | - | 0.0003 | 26.5 | - | - | 1 | W |
| VSWR (Input) | - | 0.0003 | 26.5 | - | 1.5 | - | - |
| VSWR (Output) | - | 0.0003 | 26.5 | - | 1.55 | - | - |
| Weight | - | 0.0003 | 26.5 | - | 125 | - | g |
[1] Specified as 90%/10%. Calculated from Tau_balun2 = (Tau_out2 – Tau_in2)
BAL-0026
Broadband Isolation Balun (300KHz to 26.5GHz)
Typical Performance
BAL-0026
Broadband Isolation Balun (300KHz to 26.5GHz)
Time Domain Performance Plots
Mixed Mode Scattering Parameters
Mixed mode scattering parameters are used to characterize differential circuits. For baluns, this means that the 0° and 180° ports become a single 100Ω differential port and the common port remains the same 50Ω common port. The two-port s-parameters of the balun are then characterized based on differential (d), common mode (c), or single-ended (s) signals. For example: S12ds is the differential output response given a single ended input.
BAL-0026
Broadband Isolation Balun (300KHz to 26.5GHz)
BAL-0026
Broadband Isolation Balun (300KHz to 26.5GHz)
