v01.0404
MICROWAVE CORPORATION
HMC424G16
Features
0.5 dB LSB Steps to 31.5 dB
Single Control Line Per Bit
鹵0.5 to 鹵0.8 dB Typical Bit Error
16 Lead Hermetic SMT Package
0.5dB LSB GaAs MMIC 6-BIT DIGITAL
ATTENUATOR, DC - 3 GHz
Typical Applications
The HMC424G16 is ideal for:
9
ATTENUATORS - SMT
鈥?Telecom Infrastructure
鈥?Military Radios, Radar & ECM
鈥?Space Applications
鈥?Test Instrumentation
Functional Diagram
General Description
The HMC424G16 is a broadband 6-bit GaAs IC
digital attenuator in a 16 lead glass/metal (hermetic)
surface mount package. Covering DC to 3 GHz,
the insertion loss is less than 3 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 鹵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 at less than 70 碌A(chǔ) each. A single
Vee bias of -5V allows operation at frequencies
down to DC.
Electrical Speci鏗乧ations,
T
A
= +25擄 C, With Vee = -5V & Vctl = 0/-5V
Parameter
Insertion Loss
Attenuation Range
Return Loss (RF1 & RF2, All Atten. States)
Attenuation Accuracy: (Referenced to Insertion Loss)
All States
All States
Input Power for 0.1 dB Compression
Input Third Order Intercept Point
(Two-Tone Input Power= 0 dBm Each Tone)
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON/tOFF (50% CTL to 10/90% RF)
REF State
All Other States
DC - 2.0 GHz
2.0 - 3.0 GHz
1.0 - 3.0 GHz
1.0 - 3.0 GHz
DC - 3.0 GHz
30
50
ns
ns
鹵 0.4 + 4% of Atten. Setting Max
鹵 0.5 + 5% of Atten. Setting Max
22
46
32
dB
dB
dBm
dBm
dBm
Frequency (GHz)
DC - 3.0 GHz
DC - 3.0 GHz
DC - 3.0 GHz
Min.
Typ.
3.0
31.5
12
Max.
3.6
Units
dB
dB
dB
9 - 80
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com