HMC424LP3 / 424LP3E
v08.0809
0.5dB LSB GaAs MMIC 6-BIT DIGITAL
ATTENUATOR, DC - 13 GHz
Typical Applications
Features
The HMC424LP3 / HMC424LP3E is ideal for:
• Basestation Infrastructure
• Fiber Optics & Broadband Telecom
• Microwave & VSAT Radios
• Military & Space
0.5 dB LSB Steps to 31.5 dB
Single Control Line Per Bit
0.5 dB Typical Bit Error
9mm2 Leadless SMT Plastic Package
• Test Instrumentation
Functional Diagram
General Description
The HMC424LP3 & HMC424LP3E are broadband
6-bit GaAs IC digital attenuators in low cost leadless
surface mount packages. Covering DC to 13 GHz, the
insertion loss is less then 4 dB typical. The attenuator
bit values are 0.5 (LSB), 1, 2, 4, 8, and 16 dB for a
total attenuation of 31.5 dB. Attenuation accuracy is
excellent at 0.5 dB typical step error with an IIP3 of
+32 dBm. Six control voltage inputs, toggled between
0 and -5V, are used to select each attenuation state.
A single Vee bias of -5V allows operation at frequ-
encies down to DC.
Electrical Specifications, TA = +25° C, With Vee = -5V & VCTL= 0/-5V
Parameter
Frequency (GHz)
Min.
Typ.
Max.
Units
DC - 4 GHz
4.0 - 8.0 GHz
8.0 - 13.0 GHz
3.1
3.5
4.0
3.8
4.0
4.6
dB
dB
dB
Insertion Loss
Attenuation Range
DC - 13.0 GHz
DC - 13.0 GHz
31.5
12
dB
dB
Return Loss (RF1 & RF2, All Atten. States)
9
Attenuation Accuracy: (Referenced to Insertion Loss)
0.5 - 15.5 dB States
16 - 31.5 dB States
DC - 13.0 GHz
DC - 13.0 GHz
(0.3 + 3ꢀ of Atten. Setting) Max
(0.3 + 5ꢀ of Atten. Setting) Max
dB
dB
Input Power for 0.1 dB Compression
1.0 - 13.0 Ghz
1.0 - 13.0 Ghz
DC - 13.0 GHz
22
dBm
Input Third Order Intercept Point
(Two-Tone Input Power= 0 dBm Each Tone)
REF State
All Other States
46
32
dBm
dBm
Switching Characteristics
tRISE, tFALL (10/90ꢀ RF)
tON/tOFF (50ꢀ CTL to 10/90ꢀ RF)
30
50
ns
ns
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price, delivery, and to place orders: Analog Devices, Inc.,
respFonosirbilpityriiscaess,umdeedlbivyeAnrayloag nDedvicteos fporliatscusee,onorrdfoerrasny:inHfriintgtietmeenMts oicf praotewntas ovreothCerorporation, 20 Alpha Road, Chelmsford, MA 01824
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Phone: 781-329-4700 • Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks arAe tphepplriocpearttyioofntheSir urespppecotivret:owPnehrso. ne: 978-250-3343 or apps@hittite.com
1
Application Support: Phone: 1-800-ANALOG-D