product datasheetarralis.com

K band MMIC
Voltage Controlled Oscillator

K-VCO-2324

Previously named LE-Ka1310304

GaAs PHEMT MMIC Voltage Controlled Oscillator 23.25 – 24.25GHz

Overview

Features

K-VCO-2324 is a bare die Voltage Controlled Oscillator MMIC that covers frequencies•

23.25 – 24.25GHz.

from 23.25GHz to 24.25GHz using a tuning voltage between 0V and 1V. This MMIC

•15dBm output oower.

provides a constant 15dBm output power over all tuning voltages, and runs from a 3V

•Integrated F/2 signal generation.

supply with currents <95mA. With an integrated frequency divider this MMIC provides
an additional output signal at F/2, with power levels >4dBm in the frequency range
11.625GHz to 12.125GHz for simple adoption into PLL circuitry.

Applications

The MMIC is fully passivated for additional protection and has all bond pads and•High speed data communications.

backside gold plated. K-VCO-2324 is compatible with precision die attach methods,•Space communications.

as well as thermo-compression and thermosonic wire bonding, making it ideal for•IOT.

MCM and hybrid microcircuit applications. All data shown is measured with the chip in•

Security.

a 50 Ohm environment and contacted with RF probes.

K band Datasheet

K-VCO-2324

Issue date: 30 April 21

DOC REV 3

Page 1 of 9

No licence is granted under any patent or any patent rights of Arralis. Information furnished by Arralis is believed to be accurate. No responsibility is assumed by Arralis for its use,
nor for any infringements on the rights of other parties that may result for the use of the information herein. All specification are subject to change without notice.

GaAs PHEMT MMIC Voltage Controlled Oscillator 23.25 – 24.25GHz

www.arralis.com

product datasheet

Specification Overview

Parameter

Min.

Frequency

23.25		

Output Power		
F/2 Frequency

Typ.

Max.

Units

24.25

GHzNotes
The tests indicated have all been
performed with 100pF de-coupling
capacitors on all bias pads.
All tests are carried out at 25°C.
*Should be adjusted to ensure that
the F/2 amplifier draws 32mA.

15		dBm

11.625		

12.125GHz

F/2 Output Power 		

4		dBmPhase Noise @100KHz Offset (1Hz Bandwidth)-100		 dBc/Hz

Supply Voltage, VOSC, VAMP, VD		3		V

Supply Voltage, VDIO		

0.9		 V

Nominal Gate Voltage, VG*		-0.2		 V

Tuning Voltage

0.60Current

1V

95		mA

Absolute Maximum Ratings

Parameter			Rating
Supply Voltage (VOSC, VAMP, VD)			

5V

Supply Voltage (VDIO)			

2V

Drain Current (ID)			

50mA

Tuning Voltage			

0 – 2V

Storage Temperature			−65°C to +150°C

Channel Temperature			+150°CK band Datasheet

K-VCO-2324

Issue date: 30 April 21

ESD (electrostatic discharge)
sensitive device. Charged devices
and circuit boards can discharge
without detection. Although thisproduct features proprietary
protection circuitry, damage mayoccur on devices subjected to ESD.
Proper ESD precautions should
be taken to avoid performancedegradation or loss of functionality.

DOC REV 3

Page 2 of 9

No licence is granted under any patent or any patent rights of Arralis. Information furnished by Arralis is believed to be accurate. No responsibility is assumed by Arralis for its use,
nor for any infringements on the rights of other parties that may result for the use of the information herein. All specification are subject to change without notice.

GaAs PHEMT MMIC Voltage Controlled Oscillator 23.25 – 24.25GHz

www.arralis.com

product datasheet

Measured Performance Data
(Vosc, Vamp, VD=3V, Vdiode=0.9V, Vg=-0.2V, Idd=91mA)
24.5

Figure 1
Output Frequency

24.25

Frequency (GHz)2423.75

23.5

23.25

23

00.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

Vtune (V)

(Vosc, Vamp, VD=3V, Vdiode=0.9V, Vg=-0.2V, Idd=91mA)
20

Figure 2
Output Power

1918

Output Power (dBm)

171615141312111000.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

Vtune (V)K band Datasheet

K-VCO-2324

Issue date: 30 April 21

DOC REV 3Page 3 of 9

No licence is granted under any patent or any patent rights of Arralis. Information furnished by Arralis is believed to be accurate. No responsibility is assumed by Arralis for its use,
nor for any infringements on the rights of other parties that may result for the use of the information herein. All specification are subject to change without notice.

GaAs PHEMT MMIC Voltage Controlled Oscillator 23.25 – 24.25GHz

www.arralis.com

product datasheet

Measured Performance Data(Vosc, Vamp, VD=3V, Vdiode=0.9V, Vg=-0.2V, Idd=91mA)
12.25

Figure 3
F/2 Frequency

F/2 Frequency (GHz)12.1251211.875

11.75

11.625

11.5

00.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

Vtune (V)

(Vosc, Vamp, VD=3V, Vdiode=0.9V, Vg=-0.2V, Idd=91mA)
10

Figure 4
F/2 Power

9F/2 Output Power (dBm)

87654
32
1
00

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1Vtune (V)K band Datasheet

K-VCO-2324

Issue date: 30 April 21DOC REV 3Page 4 of 9

No licence is granted under any patent or any patent rights of Arralis. Information furnished by Arralis is believed to be accurate. No responsibility is assumed by Arralis for its use,
nor for any infringements on the rights of other parties that may result for the use of the information herein. All specification are subject to change without notice.

GaAs PHEMT MMIC Voltage Controlled Oscillator 23.25 – 24.25GHz

www.arralis.com

product datasheet

Measured Performance Data(Vosc, Vamp, VD=3V, Vdiode=0.9V, Vg=-0.2V)
35

Figure 5Current Draw

30

Current (mA)

2520
Oscillator

15Osc. Amp.
F/2 Amp.

10Divider

500

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1Vtune (V)K band Datasheet

K-VCO-2324

Issue date: 30 April 21

DOC REV 3

Page 5 of 9

No licence is granted under any patent or any patent rights of Arralis. Information furnished by Arralis is believed to be accurate. No responsibility is assumed by Arralis for its use,
nor for any infringements on the rights of other parties that may result for the use of the information herein. All specification are subject to change without notice.

GaAs PHEMT MMIC Voltage Controlled Oscillator 23.25 – 24.25GHz

www.arralis.com

product datasheet

Outline Drawing
3881.32081.3

65

2700

957

82

86

82

86

817

681

83

65

881.3

105
82
86

105

82

65

224
698.1

360
1904

500
839.2
4380

Notes
1.

All dimensions are in um.

2.

Typical DC bond pads are 83 x 86um square.

3.

RF bond pads are 86 x 105um.

4.

All pads have gold metalisation.

5.

Gold backside metalisation.

6.

Backside metal is ground.

7.

Connections are not required for unlabelled bond pads.

8.

Die thickness is 100um

K band Datasheet

K-VCO-2324

Die Packing Information
All die are delivered using gel-paks
unless otherwise requested.

Issue date: 30 April 21

DOC REV 3

Page 6 of 9

No licence is granted under any patent or any patent rights of Arralis. Information furnished by Arralis is believed to be accurate. No responsibility is assumed by Arralis for its use,
nor for any infringements on the rights of other parties that may result for the use of the information herein. All specification are subject to change without notice.

GaAs PHEMT MMIC Voltage Controlled Oscillator 23.25 – 24.25GHz

www.arralis.com

product datasheet

Pad Descriptions
NameDescription

RFOUT

Output RF pad for main frequency (F). This pad is AC coupled

VTUNEFrequency tuning voltage padVOSC

Bias pad for oscillator circuit

VAMP

Bias pad for amplifier circuit @F

VDIOBias pad for frequency divider circuit

VD		

Drain bias pad for F/2 amplifier

VG		

Gate bias pad for F/2 amplifier

PLL		

Output RF pad for F/2. This pad is AC coupled

BOTTOM

The die backside must be connected to RF/DC groundConnection Configurations
To BIAS Connections

VTUNEVOSC(Not actual die – these rules
are applied to all MMICs unlessotherwise stated)

VAMPF
OUT

F/2
OUT

To BIAS Connections

K band Datasheet

K-VCO-2324

Issue date: 30 April 21

DOC REV 3

Page 7 of 9

No licence is granted under any patent or any patent rights of Arralis. Information furnished by Arralis is believed to be accurate. No responsibility is assumed by Arralis for its use,
nor for any infringments on the rights of other parties that may result for the use of the information herin. All specification are subject to change without notice.

GaAs PHEMT MMIC Voltage Controlled Oscillator 23.25 – 24.25GHz

www.arralis.com

product datasheet

General Notes on Assembly

Die should be mounted on conductive material such as gold-plated metal to provide agood ground and suitable heat sink, if necessary.
1.

Attaching the die using Au/Sn preforms is preferable. The Eutectic melt for Au/
Sn occurs at approximately 280oC so the die (plus mount and preform) is initiallyheated up to 180oC and then it is heated for approximately 10 seconds to 280oC
using a nitrogen heat gun. The device will survive 10 seconds at this temperature.
The static breakdown for GaAs devices is approximately 330oC.

2.

Pure, dry nitrogen should be used as the heat source.

3.

If the devices cannot be lifted/ placed by a vacuum device, then ESD die-lifting
tweezers are preferable.

4.

Supply lines should be decoupled with 100pF capacitors. Larger planar capacitors
could be used if available.

5.

Aluminium wire must not be used.

Disclaimer
The information contained herein is believed to be reliable; however, Arralis makes no warranties
regarding the information and assumes no responsibility or liability whatsoever for the use of theinformation contained herein. All information is subject to change without notice, therefore customers
should obtain the latest relevant information before placing orders for Arralis products. The information
contained herein does not grant, explicitly or implicitly, to any party any patent rights, licenses, or any
other intellectual property rights.
This information does not constitute a warranty with respect to the product described, and Arralis
disclaims any and all warranties either expressed or implied, relating to sale and/or use of Arralis products
including liability or warranties relating to fitness for a particular purpose, consequential or incidental
damages, merchantability, or infringement of any patent, copyright or other intellectual property right.
Without limiting the generality of the foregoing, Arralis products are not warranted or authorised for use
as critical components in medical, life-saving, or life-sustaining applications, or other applications wherea failure would reasonably be expected to cause severe personal injury or death.
Copyright 2021 © Arralis

K band Datasheet

K-VCO-2324

Issue date: 30 April 21

DOC REV 3

Page 8 of 9

No licence is granted under any patent or any patent rights of Arralis. Information furnished by Arralis is believed to be accurate. No responsibility is assumed by Arralis for its use,
nor for any infringements on the rights of other parties that may result for the use of the information herein. All specification are subject to change without notice.

©2021 Arralis Ltd. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.

Arralis USA OfficeArralis European Offices+(1) 386 301 3249 (USA)t: +(44) 1793 239670 (UK)e: sales@arralis.com

K band Datasheetarralis.com
K-VCO-2324

e: emilie.wren@arralis.com

Issue date: 30 April 21

DOC REV 3

Page 9 of 9

No licence is granted under any patent or any patent rights of Arralis. Information furnished by Arralis is believed to be accurate. No responsibility is assumed by Arralis for its use,
nor for any infringements on the rights of other parties that may result for the use of the information herein. All specification are subject to change without notice.