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Numéro de référence | HMC941 | ||
Description | 0.5dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR | ||
Fabricant | Hittite Microwave Corporation | ||
Logo | |||
1 Page
HMC941
v00.0910
0.5 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.1 - 30 GHz
1 Typical Applications
The HMC941 is ideal for:
• Fiber Optics & Broadband Telecom
• Microwave Radio & VSAT
• Military Radios, Radar & ECM
• Space Applications
Features
0.5 dB LSB Steps to 15.5 dB
Single Positive Control Line Per Bit
±0.5 dB Typical Bit Error
High Input IP3: +45 dBm
Die Size: 2.29 x 0.95 x 0.1 mm
Functional Diagram
General Description
The HMC941 die is a broadband 5-bit GaAs IC digi-
tal attenuator MMIC chip. Covering 0.1 to 30 GHz, the
insertion loss is less than 4 dB typical. The attenuator
bit values are 0.5 (LSB), 1, 2, 4, 8, for a total attenu-
ation of 15.5 dB. Attenuation accuracy is excellent
at less than ± 0.5 dB typical step error with an IIP3 of
+45 dBm. Five control voltage inputs, toggled between
+5V and 0V, are used to select each attenuation state.
Electrical Specifications, TA = +25° C, With Vdd = +5V, Vss = -5V & VCTL = 0/ +5V
Parameter
Frequency (GHz)
Min.
Typ. Max.
Insertion Loss
0.1 - 18.0 GHz
18.0 - 30.0 GHz
2.5 3.5
4.0 4.8
Attenuation Range
0.1 - 30.0 GHz
15.5
Return Loss (RF1 & RF2, All Atten. States)
0.1 - 30.0 GHz
15
Attenuation Accuracy: (Referenced to Insertion Loss)
0.5 - 7.5 dB States
8 - 15.5 dB States
0.1 - 30.0 GHz
0.1 - 30.0 GHz
± 0.3 + 4% of Atten. Setting Max
± 0.3 + 5% of Atten. Setting Max
Input Power for 0.1 dB Compression
0.1 - 0.5 GHz
0.5 - 30.0 GHz
22
27
Input Third Order Intercept Point
(Two-Tone Input Power= 0 dBm Each Tone)
0.1 - 0.5 GHz
0.5 - 30.0 GHz
42
45
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON/tOFF (50% CTL to 10/90% RF)
0.1 - 30.0 GHz
60
90
Idd
0.1 - 30.0 GHz
3
57
Iss
0.1 - 30.0 GHz
-4
-6 -8
Units
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
ns
ns
mA
mA
1-1
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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 [email protected]
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Pages | Pages 6 | ||
Télécharger | [ HMC941 ] |
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