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Hittite Microwave Corporation - SMT Digital Variable Gain Amplifier W/ Serial Control

Numéro de référence HMC681LP5E
Description SMT Digital Variable Gain Amplifier W/ Serial Control
Fabricant Hittite Microwave Corporation 
Logo Hittite Microwave Corporation 





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HMC681LP5E fiche technique
HMC681LP5 / 681LP5E
v00.0508
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER w/ SERIAL CONTROL, DC - 1 GHz
www.datashTeeytp4ui.ccoaml Applications
The HMC681LP5(E) is ideal for:
• IF & RF Applications
• Cellular/3G Infrastructure
• WiBro / WiMAX / 4G
• Microwave Radio & VSAT
• Test Equipment and Sensors
8 Functional Diagram
Features
+13.5 dB to +45 dB Gain Control in 0.5 dB Steps
High Output IP3: +36 dBm
±0.25 dB Typical Gain Step Error
Single +5V Supply
32 Lead 5x5mm SMT Package: 25mm2
General Description
The HMC681LP5(E) is a digitally controlled variable
gain amplifier which operates from DC to 1 GHz,
and can be programmed to provide anywhere from
13.5 dB, to 45 dB of gain, in 0.5 dB steps. The
HMC681LP5(E) delivers noise figure of 2.8 dB in its
maximum gain state, with output IP3 of up to +36
dBm in any state. This serially controlled digital VGA
incorporates off chip AC ground capacitors for near
DC operation, making it suitable for a wide variety of
RF and IF applications. The HMC681LP5(E) is housed
in a RoHS compliant 5x5 mm QFN leadless package,
and provides the user with a highly integrated solution.
This functionality is also available with parallel control
as the HMC626LP5(E).
8 - 64
Electrical Specifications, TA = +25° C, Vdd = Vs= P/S= +5V
Parameter
Min.
Typ.
50 - 350
Max.
Min.
Typ.
350 - 1000
Max.
Gain (Maximum Gain State)
40 45
30 40
Gain Control Range
31.5 31.5
Input Return Loss
25 30
Output Return Loss
20 17
Gain Setting Accuracy:
(Referenced to Maximum Gain State)
All Gain States
± (0.15 + 3% of Relative Gain Setting) Max. ± (0.15 + 3% of Relative Gain Setting) Max.
Output Power for 1 dB Compression
20
19
Output Third Order Intercept Point
(Two-Tone Output Power= 5 dBm Each Tone)
38
36
Noise Figure
2.7 2.8
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
60
120
60
120
Total Supply Current
176 225
176 225
Units
MHz
dB
dB
dB
dB
dB
dBm
dBm
dB
ns
ns
mA
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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