Port Diagram
NOT RECOMMENDED FOR NEW DESIGN
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Device Overview
General Description
The ATN03-0050CSP1 is a surface mount GaAs MMIC 3dB attenuator in a chip scale package (CSP). This attenuator is an ideal solution for attenuating a signal and can be used in a wide range of applications. The CSP allows for extreme miniaturization of SMT footprint while providing die-like performance. GaAs MMIC technology provides consistent unit-to-unit performance in a small, low-cost form factor. Compensates for high frequency board losses with a positive gain slope. A 50-ohm match is maintained over the entire operating frequency range.
Features
Small 1.5 x 1.5 mm package size
▪ 3dB attenuation from DC to 50 GHz
▪ 15dB typical return loss over operatingband
▪ 1W RF Power Handling
▪ Low SWaP
- This product embodies Marki Microwave's U.S. Pat. 11,869,858.
Applications
- 5G
- Test Equipment
- Precision Characterization
- Airborne Applications
- Amplitude Matching
- High Channel Count Systems
Functional Block Diagram
Part Ordering Options
| Part Number | Description | Package | Green Status | Product Lifecycle | Export Classification | Recommended Replacement |
|---|---|---|---|---|---|---|
| ATN03-0050CSP1 | Chip Scale Package MMIC 50 GHz 3dB Attenuator | CSP1 | REACH RoHS | Not Recommended for New Design | EAR99 | ATN03-0070CSP1 |
| EVB-ATN03-0050 | Evaluation Board, Chip Scale Package MMIC 50 GHz 3dB Attenuator | EVB | REACH RoHS | Released | EAR99 | - |
| Part Number | Description | Package | Green Status | Product Lifecycle | Export Classification | Recommended Replacement |
|---|---|---|---|---|---|---|
| ATN03-0050CSP1 | Chip Scale Package MMIC 50 GHz 3dB Attenuator | CSP1 | REACH RoHS | Not Recommended for New Design | EAR99 | ATN03-0070CSP1 |
| EVB-ATN03-0050 | Evaluation Board, Chip Scale Package MMIC 50 GHz 3dB Attenuator | EVB | REACH RoHS | Released | EAR99 | - |
ATN03-0050CSP1
Chip Scale Package MMIC 50 GHz 3dB Attenuator
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 |
|---|---|---|
| - | 2022-08-11 | Initial Release |
| A | 2025-04-15 | NRND |
ATN03-0050CSP1
Chip Scale Package MMIC 50 GHz 3dB Attenuator
Port Configuration and Functions
Port Functions
| Port | Function | Description | DC Equivalent Circuit |
|---|---|---|---|
| Ground Paddle | Ground | CSP package ground path is provided through the ground paddle. |  |
| Pin 1 | Input/Output | Pin 1 and Pin 2 are DC connected to each other and ground through a T-network of resistors. |  |
| Pin 2 | Input/Output | Pin 1 and Pin 2 are DC connected to each other and ground through a T-network of resistors. | |
ATN03-0050CSP1
Chip Scale Package MMIC 50 GHz 3dB Attenuator
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 |
| RF Power Handling | 1 | W |
Package Information
| Parameter | Details | Rating |
|---|---|---|
| ESD | 250 to < 500 Volts | HBM Class 1A |
| Dimensions | - | 1.5 x 1.5 mm |
| Moisture Sensitivity Level | - | MSL 3 |
ATN03-0050CSP1
Chip Scale Package MMIC 50 GHz 3dB Attenuator
Electrical Specifications
The electrical specifications apply at TA=+25°C in a 50Ω system. Typical data shown is for the attenuator in a CSP package with a sine wave input applied to port 1.
| Parameter | Test Conditions | Minimum Frequency (GHz) | Maximum Frequency (GHz) | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| Attenuation | - | 0 | 30 | - | 2.85 | - | dB |
| Attenuation | - | 30 | 50 | - | 2 | - | dB |
| Impedance | - | 0 | 50 | - | 50 | - | Ω |
| Return Loss | - | 0 | 40 | 13 | 20 | - | dB |
| Return Loss | - | 40 | 50 | - | 15 | - | dB |
| Parameter | Test Conditions | Minimum Frequency (GHz) | Maximum Frequency (GHz) | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| Attenuation | - | 0 | 30 | - | 2.85 | - | dB |
| Attenuation | - | 30 | 50 | - | 2 | - | dB |
| Impedance | - | 0 | 50 | - | 50 | - | Ω |
| Return Loss | - | 0 | 40 | 13 | 20 | - | dB |
| Return Loss | - | 40 | 50 | - | 15 | - | dB |
ATN03-0050CSP1
Chip Scale Package MMIC 50 GHz 3dB Attenuator
Typical Performance Plots
Electrical performance data is de-embedded to the CSP package ports.
ATN03-0050CSP1
Chip Scale Package MMIC 50 GHz 3dB Attenuator
Performance Over Temperature
Evaluation board performance is shown as a proxy for device performance due to fixturing variability over temperature.
ATN03-0050CSP1
Chip Scale Package MMIC 50 GHz 3dB Attenuator
Mechanical Data
ATN03-0050CSP1
Chip Scale Package MMIC 50 GHz 3dB Attenuator
Footprint Image
Download : Footprint Drawing
ATN03-0050CSP1
Chip Scale Package MMIC 50 GHz 3dB Attenuator
Evaluation Board - Outline Drawing
