Rev: B | Copyright © 2025 - 2026 Marki Microwave LLC.

General Description

The ABSD-10169PSM is a GaAs active MMIC balun in a 3mm QFN surface mount package. Its frequency ranges from DC to 30 GHz and offers 9 dB single ended to differential gain (low end limited by DC block). The 3mm QFN package is a lead free, RoHS compliant package compatible with standard leaded and lead-free solder reflows. Connectorized evaluation packages are available. The ABSD-10168PSM is an excellent choice for active single ended to differential mode conversion and higher order Nyquist sampling in analog to digital converters.

Features

  • 2:1 Impedance Ratio
  • 30 GHz Active Balun (Single Ended to Differential Mode Conversion)
  • Designed for Optimal Phase/Amplitude Balance
  • 9 dB Single Ended to Differential Gain
  • RoHS Compliant

Functional Block Diagram

Block Diagram
Photo of ABSD-10169PSM

Electrical Performance Summary

ParameterTypUnit
Frequency Range0 to 30GHz
Phase Balance 1°
Amplitude Balance 0.1dB
Impedance Ratio 2:1-
Common Mode Rejection 40dB

Summary only – refer to the Electrical Specifications, Absolute Maximum Ratings, and Recommended Operating Range tables for complete details.

Part Ordering Options

Part NumberDescriptionPackageGreen StatusProduct LifecycleExport Classification
ABSD-10169PSM30 GHz Single Ended to Differential Active BalunQFN

REACH

RoHS

ReleasedEAR99
EVB-ABSD-10169PEvaluation BoardEVB

REACH

RoHS

ReleasedEAR99

Table Of Contents

Typical Performance Plots

Three port scattering parameters measured as three single-ended 50Ω ports. Small signal gain, return losses and reverse isolation have evb and connector effects de-embedded.

Common to output port insertion loss graph for ABSD-10169PSM
Return loss for common port and output ports graph for ABSD-10169PSM
Phase balance between output ports graph for ABSD-10169PSM
Amplitude balance between output ports graph for ABSD-10169PSM
Reverse Isolation graph for ABSD-10169PSM
Common mode rejection graph for ABSD-10169PSM

Differential Linearity

Measurements are with 50-Ω single-ended input, and 100-Ω differential output. EVB and connector effects are included in these measurements.

HD2 (dBc) graph for ABSD-10169PSM
HD3 (dBc) graph for ABSD-10169PSM
Output IP3 (dBm) graph for ABSD-10169PSM
Output IP2 (dBm) vs. Frequency graph for ABSD-10169PSM

Differential Noise Figure

Measured differentially and includes EVB and connector noise contributions.

Noise Figure (dB) vs. Frequency graph for ABSD-10169PSM
Blank graph for ABSD-10169PSM

Specifications

Electrical Specifications

Specifications guaranteed for +25°C, measured in a 50Ω system. Measured data was taken on an evaluation board and includes PCB trace and connector effects unless unless otherwise noted.

ParameterTest ConditionsMinimum
Frequency
(GHz)
Maximum
Frequency
(GHz)
MinTypMaxUnit
Frequency Range-0 30---GHz
Single-Ended Gain 1Vd=5V, Vs=-5V
0 30-6-dB
Differential Power Gain 2Vd=5V, Vs=-5V
0 30-9-dB
Common Port Return Loss 3Vd=5V, Vs=-5V
0 30-22-dB
Output Return Loss 4Vd=5V, Vs=-5V
0 30-22-dB
Amplitude Balance Vd=5V, Vs=-5V
0 30-0.1-dB
Phase Balance Vd=5V, Vs=-5V
0 30-1-°
Nominal Phase Shift Vd=5V, Vs=-5V
0 30-180-°
Common Mode Rejection Vd=5V, Vs=-5V
0 30-40-dB
Reverse Isolation 5Vd=5V, Vs=-5V
0 30-55-dB
Noise Figure 6Vd=5V, Vs=-5V
0 30-9-dB
HD2 Vd=5V, Vs=-5V, differential output power=+3dBm
0 20--52-dBc
HD3 Vd=5V, Vs=-5V, differential output power=+3dBm
0 13--37-dBc
Output IP2 Vd=5V, Vs=-5V, Pin=-13dBm, Tone Spacing = 10MHz
0 20-55-dBm
Output IP3 Vd=5V, Vs=-5V, Pin=-13dBm, Tone Spacing = 10MHz
0 30-19-dBm
DC Supply Quiescent Current (Idq) Vd=5V, Vs=-5V
- --137-mA
DC Supply Quiescent Current (Isq) Vd=5V, Vs=-5V
- ---116-mA
Impedance Ratio -- --2:1--

[1][3][4][5] Measured single-ended with connector and evb effects de-embedded.

[2] Calculated as [(RF Out+) - (RF Out-)] relative to RF In.

[6] Measured using a balun at the output to re-combine the RF Out + and RF Out - signals. The external balun and associated losses are de-embedded from the measurement. EVB trace and connector losses are still present in the data.

ParameterMinNominalMaxUnit
Negative DC Voltage (Vs) -4-5-5V
Negative DC Current (Is) (No RF Input) -94-116-116mA
Positive DC Current (Id) (No RF Input) 111137137mA
Positive DC Voltage (Vd) 455V

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. This device is designed and characterized in a 50Ω system (100Ω differential output), and operation in a reflective environment can cause performance degradation.

ParameterMaximum RatingUnit
Drain Current (Id) (No RF Applied) 1160mA
Maximum Operating Temperature 85°C
Maximum Storage Temperature 150°C
Minimum Operating Temperature -40°C
Minimum Storage Temperature -65°C
RF Input Power 10dBm
Total DC Supply Voltage (Vd-Vs) 11V

[1] Max current density across TFR

Package Information

ParameterDetailsRating
ESD< 50 VoltsHBM 0Z
Dimensions-3 x 3 mm
Moisture Sensitivity Level-MSL 1

Port Configuration and Functions

Port Diagram

Below is the port diagram for the ABSD-10169PSM. The diagram is shown as an x-ray view from the top down.

Diagram of the port configuration for ABSD-10169PSM

Port Functions

PortFunctionDescriptionDC Equivalent
Circuit
11Vd Pin 11 is the positive DC supply voltage for the device.-
1,3,4,6,8,10 and 12Non-connect (NC) These pins are not connected internally. Datasheet performance is tested with NC pins grounded.-
2RF Input Pin 2 is the RF input of the device. This pin is internally RF matched to 50 Ohms and is DC coupled. This pin requires an external DC blocking capacitor if there is DC present on the input line. If no DC is present or the line is floating, an external DC blocking capacitor is unnecessary.-
5Vs Pin 5 is the negative DC supply voltage for the device.-
7RF Out - Pin 7 is the negative RF output of the device. This pin is internally RF matched to 50 Ohms and is DC coupled. This pin requires an external DC blocking capacitor.-
9RF Out + Pin 9 is the positive RF output of the device. This pin is internally RF matched to 50 Ohms and is DC coupled. This pin requires an external DC blocking capacitor.-
PaddleGround Ground pad should be connected to RF/DC ground with low electrical and thermal resistance.-

Operation

Application Circuit

Application Circuit for ABSD-10169PSM

Application Circuit Description

The application circuit for the ABSD-10169PSM is shown above. This part requires DC blocking capacitors at all RF pins ( 2,7 and 9). DC power is supplied via Vd (11) and Vs (5) pins. Positive DC voltage is applied to Vd and negative DC voltage is applied to Vs. It is recommended to provide 0.1uF bypass capacitors on the Vd and Vs supply lines. NC pins are not internally connected but should be grounded. The paddle of the QFN should be connected to GND via a low thermal and electrical resistance.

Mechanical Data

Outline Drawing

Download : Outline 2D Drawing Outline 3D Drawing Outline 3D STP

Outline Drawing

Evaluation Board

Evaluation Board - Outline Drawing

Outline Drawing

Revision History

Revision CodeRevision DateComment
-2025-04-07Initial Release
A2025-05-23Corrected absolute max current rating
B2026-09-18Updated conditions for OIP2 and OIP3

Notes

The RF transitions on the input and output traces of the recommended footprint are specific to the material type and thickness used on the Marki evaluation board. They are currently designed for single-ended 50 Ohm transmission line. They will need to be re-designed for pcb stackups using different materials and or different transmission line impedances.

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