For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
ATTENUATORS - DIGITAL - SMT
1
HMC468ALP3E
v00.1212
1dB LSB GaAs MMIC 3-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 6GHz
Functional Diagram
Electrical Specications, T
A
= +25° C, With Vdd = +5V & Vctl = 0/+5V
The HMC468ALP3E is ideal for:
• Cellular; UMTS/3G Infrastructure
• Fixed Wireless & WLL
• Microwave Radio & VSAT
• Test Equipment
1 dB LSB Steps to 7 dB
High IP3: +55 dBm
± 0.25 dB Typical Bit Error
Single Control Line Per Bit
Single +5V Supply
16 Lead 3x3 mm SMT Package: 9 mm
2
The HMC468ALP3E is a broadband 3-bit GaAs
IC digital attenuators in a low cost leadless sur-
face mount package. Covering DC to 6.0 GHz,
the insertion loss is less than 1 dB typical up to 4
GHz. The attenuator bit values are 1 (LSB), 2 and 4
dB for a total attenuation of 7 dB. Attenuation accu-
racy is excellent at ±0.4 dB typical step error with an
IIP3 of +55 dBm. Three control voltage inputs, toggled
between 0 and +5V, are used to select each attenua-
tion state. A single Vdd bias of +5V is required.
Parameter Frequency (GHz) Min. Typ. Max. Units
Insertion Loss
DC - 2.5 GHz
2.5 - 4.5 GHz
4.5 - 6.0 GHz
0.5
0.7
0.9
1.0
1.2
1.4
dB
dB
dB
Attenuation Range DC - 6 GHz 7 dB
Return Loss (RF1 & RF2, All Atten. States) DC - 6 GHz 20 dB
Attenuation Accuracy:
(Referenced to Insertion Loss)
All States
1 - 4 dB States
5 - 7 dB States
DC - 2.5 GHz
2.5 - 6.0 GHz
2.5 - 6.0 GHz
± 0.2 + 2% of Atten. Setting Max.
± 0.3 + 3% of Atten. Setting Max.
± 0.4 + 4% of Atten. Setting Max.
dB
dB
dB
Input Power for 0.1 dB Compression 0.25 - 6.0 GHz 26 dBm
Input Third Order Intercept Point
(Two-Tone Input Power= 0 dBm Each Tone)
0.25 - 6.0 GHz 55 dBm
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
DC - 6 GHz
60
80
ns
ns
* Bypass capacitor connecting ACG1, ACG2 & ACG3 to RF ground required per pin description herein.
Typical Applications
Features
General Description
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
