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Hittite Microwave - 1 dB LSB GaAs MMIC 5-BIT DIGITAL POSITIVE CONTROL ATTENUATOR - DC - 3.0 GHz

Numéro de référence HMC470LP3
Description 1 dB LSB GaAs MMIC 5-BIT DIGITAL POSITIVE CONTROL ATTENUATOR - DC - 3.0 GHz
Fabricant Hittite Microwave 
Logo Hittite Microwave 





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HMC470LP3 fiche technique
Designer’s Kit
Available
v02.0605
HMC470LP3 / 470LP3E
www.DataSheet4U.com
1 dB LSB GaAs MMIC 5-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 3.0 GHz
Typical Applications
6 The HMC470LP3 /HMC470LP3E is ideal for both RF
and IF applications:
• Cellular; UMTS/3G Infrastructure
• ISM, MMDS, WLAN, WiMAX
• Microwave Radio & VSAT
• Test Equipment and Sensors
Functional Diagram
Features
1 dB LSB Steps to 31 dB
Single Control Line Per Bit
TTL/CMOS Compatible Control
+/- 0.3 dB Typical Step Error
Single +5V Supply
3 x 3 mm SMT Package
Included in the HMC-DK004 Designer’s Kit
General Description
The HMC470LP3 & HMC470LP3E are broadband
5-bit GaAs IC digital attenuators in low cost lead-
less surface mount packages. This single positive
control line per bit digital attenuator incorporates
off chip AC ground capacitors for near DC opera-
tion, making it suitable for a wide variety of RF
and IF applications. Covering DC to 3.0 GHz, the
insertion loss is less than 1.5 dB typical. The
attenuator bit values are 1 (LSB), 2, 4, 8, and 16 dB
for a total attenuation of 31 dB. Attenuation accuracy
is excellent at ± 0.3 dB typical step error with an IIP3
of +45 dBm. Five TTL/CMOS control inputs are used
to select each attenuation state. A single Vdd bias of
+5V is required.
6 - 144
Electrical Specifications,
TA = +25° C, With Vdd = +5V & Vctl = 0/+5V (Unless Otherwise Noted)
Parameter
Insertion Loss
Attenuation Range
Frequency (GHz)
DC - 1.5 GHz
1.5 - 2.3 GHz
2.3 - 3.0 GHz
DC - 3.0 GHz
Min.
Return Loss (RF1 & RF2, All Atten. States)
DC - 3.0 GHz
Typ.
1.3
1.4
1.7
31
17
Max.
1.6
1.7
2.0
Units
dB
dB
dB
dB
dB
Attenuation Accuracy: (Referenced to Insertion Loss)
All Attenuation States
1.0 - 15.0 dB States
16.0 - 31.0 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)
REF - 15 dB
States
16 - 31 dB States
DC - 2.3 GHz
2.3 - 3.0 GHz
2.3 - 3.0 GHz
0.1 - 3.0 GHz
0.1 - 3.0 GHz
DC - 3.0 GHz
± (0.3 + 2% of Atten. Setting) Max.
± (0.3 + 3% of Atten. Setting) Max.
± (0.3 + 6% of Atten. Setting) Max.
20
45
35
dB
dB
dB
dBm
dBm
dBm
160 ns
180 ns
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com

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