v00.1102
MICROWAVE CORPORATION
HMC335G16
1dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, DC - 3 GHz
Features
1 dB LSB Steps to 31 dB
Single Control Line Per Bit
+/- 0.5 dB Typical Bit Error
16 Lead Hermetic SMT Package
Typical Applications
The HMC335G16 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 HMC335G16 is a broadband 5-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 2.3 dB typical. The attenu-
ator bit values are 1 (LSB), 2, 4, 8, and 16 dB for
a total attenuation of 31 dB. Attenuation accuracy
is excellent at 鹵0.5 dB typical with an IIP3 of up to
+44 dBm. Five bit control voltage inputs, toggled
between 0 and -5V, are used to select each attenua-
tion state at less than 70 碌A(chǔ) each. A single Vee bias
of -5V allows operation down to DC.
Electrical Speci鏗乧ations,
T
A
= +25擄 C, Vee = -5V & Vctl = 0/Vee
Parameter
Insertion Loss
Frequency
DC - 1.5 GHz
1.5 - 3.0 GHz
DC - 3.0 GHz
DC - 3.0 GHz
Min.
Typical
2.0
2.3
31
13
鹵 0.3 + 5% of Atten. Setting Max
鹵 0.3 + 5% of Atten. Setting Max
鹵 0.3 + 8% of Atten. Setting Max
鹵 0.3 + 5% of Atten. Setting Max
鹵 0.3 + 8% of Atten. Setting Max
鹵 0.5 + 10% of Atten. Setting Max
24
44
Max.
2.5
2.8
Units
dB
dB
dB
dB
Attenuation Range
Return Loss (RF1 & RF2, All Atten. States)
Attenuation Accuracy: (Referenced to Insertion Loss)
1 - 31 dB States
1 - 27 dB States
28 - 31 dB States
1 - 23 dB States
24 - 27 dB States
28 - 31 dB 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)
DC - 1.0 GHz
1.0 - 2.0 GHz
1.0 - 2.0 GHz
2.0 - 3.0 GHz
2.0 - 3.0 GHz
2.0 - 3.0 GHz
0.5 - 3.0 GHz
0.5 - 3.0 GHz
DC - 3.0 GHz
dB
dB
dB
dB
dB
dB
dBm
dBm
140
160
ns
ns
9 - 56
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
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