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Hittite Microwave Corporation - 2 dB LSB GaAs MMIC 3-BIT DIGITAL ATTENUATOR/ 0.7 - 3.7 GHz

Numéro de référence HMC288MS8
Description 2 dB LSB GaAs MMIC 3-BIT DIGITAL ATTENUATOR/ 0.7 - 3.7 GHz
Fabricant Hittite Microwave Corporation 
Logo Hittite Microwave Corporation 





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HMC288MS8 fiche technique
v00.0600 HMC288MS8
MICROWAVE CORPORATION
2 dB LSB GaAs MMIC 3-BIT DIGITAL
ATTENUATOR, 0.7 - 3.7 GHz
9
9 - 26
Typical Applications
The HMC288MS8 is ideal for:
• Cellular
• PCS, ISM, MMDS
• WLL applications
Features
2 dB LSB Steps to 14 dB
Single Positive Control Per BIT
Monotonic: ±03 dB Bit Error Typical
Miniature MSOP-8 Package, 14.8mm2
Functional Diagram
General Description
The HMC288MS8 is a broadband 3-bit positive con-
trol GaAs IC digital attenuator in an 8 lead MSOP
surface mount plastic package. Covering 0.7 to 3.7
GHz, the insertion loss is typically less than 1.2 to
1.8 dB. The attenuator bit values are 2 (LSB), 4,
and 8 dB for a total attenuation of 14 dB. Accuracy
is excellent at ± 0.3 dB typical with an IIP3 of up to
+51 dBm. Three bit control voltage inputs, toggled
between 0 and +3 to +5V, are used to select each
attenuation state at less than 50 uA each. A single
Vdd bias of +3 to +5V applied through an external
5K Ohm resistor is required while occupying less
than 14.8 mm².
Electrical Specifications,
TA = +25° C, Vdd = +3V to +5V & Vctl = 0/Vdd (Unless Otherwise Stated)
Parameter
Frequency
Min.
Typical
Max.
Units
Insertion Loss
0.7 - 1.4 GHz
1.4 - 2.3 GHz
2.3 - 2.7 GHz
2.7 - 3.7 GHz
1.0 1.4 dB
1.3 1.7 dB
1.5 2.0 dB
1.7 2.3 dB
Attenuation Range
0.7 - 3.7 GHz
14 dB
Return Loss (RF1 & RF2, All Atten. States)
0.7 - 1.4 GHz 14 17
1.4 - 2.3 GHz 11 15
2.3 - 2.7 GHz 10 14
2.7 - 3.7 GHz 9 12
dB
dB
dB
dB
Attenuation Accuracy: (Referenced to Insertion Loss)
All Attenuation States
All Attenuation States
All Attenuation States
All Attenuation States
0.7 - 1.4 GHz
1.4 - 2.3 GHz
2.3 - 2.7 GHz
2.7 - 3.7 GHz
± 0.3 + 3% of Atten. Setting Max
± 0.2 + 3% of Atten. Setting Max
± 0.3 + 3% of Atten. Setting Max
± 0.3 + 4% of Atten. Setting Max
dB
dB
dB
dB
Input Power for 0.1 dB Compression
5V 0.7 - 3.7 GHz
3V
25 dBm
22 dBm
Input Third Order Intercept Point
(Two-tone Input Power = 0dBm Each Tone)
5V 0.7 - 3.7 GHz
3V
51 dBm
47 dBm
Switching Characteristics
0.7 - 3.7 GHz
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
560 ns
600 ns
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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