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Hittite Microwave Corporation - 4 dB LSB GaAs MMIC 3-BIT DIGITAL ATTENUATOR/ 0.75 - 2.0 GHz

Numéro de référence HMC230MS8
Description 4 dB LSB GaAs MMIC 3-BIT DIGITAL ATTENUATOR/ 0.75 - 2.0 GHz
Fabricant Hittite Microwave Corporation 
Logo Hittite Microwave Corporation 





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HMC230MS8 fiche technique
v01.0701 HMC230MS8
MICROWAVE CORPORATION
4 dB LSB GaAs MMIC 3-BIT DIGITAL
ATTENUATOR, 0.75 - 2.0 GHz
9
9-8
Typical Applications
The HMC230MS8 is ideal for:
• Cellular
• PCS, ISM, MMDS
• WLL Handset
• Base Station Infrastructure
Functional Diagram
Features
4 dB LSB Steps to 28 dB
Single Positive Control Per Bit
+/- 0.5 dB Typical Bit Error
Pin - For - Pin Replacement to
AA100-59 Digital Attenuator
General Description
The HMC230MS8 is a broadband 3 - bit positive
control GaAs IC digital attenuator in an 8 lead MSOP
surface mount plastic package. Covering 0.75 to
2 GHz, the insertion loss is typically less than 2
dB. The attenuator bit values are 4 (LSB), 8, and
16 dB for a total attenuation of 28 dB. Accuracy is
excellent at ± 0.5 dB typical with an IIP3 of up to
+48 dBm. Three bit control voltage inputs, toggled
between 0 and +3 to +5 volts, are used to select
each attenuation state at less than 50 uA each. A
single Vdd bias of +3 to +5 volts applied through an
external 5K Ohm resistor is required.
Electrical Specifications,
TA = +25° C, Vdd = +3V to +5V & Vctl = 0/Vdd (Unless Otherwise Stated)
Parameter
Frequency
Min. Typical Max.
Insertion Loss
0.75 - 1.7 GHz
1.7 - 2.0 GHz
1.6 1.8
1.8 2.1
Attenuation Range
0.75 - 2.0 GHz
28
Return Loss (RF1 & RF2, All Atten. States)
0.75 - 1.7 GHz
1.7 - 2.0 GHz
10
13
13
16
Attenuation Accuracy: (Reference to Insertion Loss)
4, 8, 12, 16, 20 dB States
24, 28 dB States
All Attenuation States
0.75 - 1.4 GHz
0.75 - 1.4 GHz
1.40 - 2.0 GHz
± 0.3 + 3% of Atten. Setting Max
± 0.4 + 6% of Atten. Setting Max
± 0.3 + 3% of Atten. Setting Max
Input Power for 0.1 dB Compression
5V 0.75 - 2.0 GHz
3V
20
19
Input Third Order Intercept
(Two-Tone Input Power = 0 dBm Each)
5V 0.75 - 2.0 GHz
3V
46
45
Switching Characteristics
0.75 - 2.0 GHz
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
560
600
Units
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
ns
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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