HMC491LP3
/
491LP3E
v03.1206
GaAs MMIC LOW NOISE AMPLIFIER
w/ BYPASS MODE, 3.4 - 3.8 GHz
8
LOW NOISE AMPLIFIERS - SMT
Typical Applications
The HMC491LP3 / HMC491LP3E is ideal for:
• Wireless Local Loop (WLL)
• Fixed Wireless Access
• Microwave & VSAT Radios
Features
Gain: 16 dB
Noise Figure: 2 dB
Single Supply: +3V @ 9 mA
Integrated Bypass Mode
50 Ohm Matched Input/Output
3 x 3 x 1 mm QFN SMT Package
Functional Diagram
General Description
The HMC491LP3 & HMC491LP3E are versatile, inte-
grated, Low Noise Amplifiers (LNA) featuring a bypass
mode intended for 3.4 to 3.8 GHz Fixed Wireless &
WLL applications. The amplifier provides 16 dB of
gain, 2 dB noise figure and +3 dBm input IP3 while
requiring only 9 mA from a +3V supply. Using a single
control line, the LNA can be switched into a low loss
2.2 dB bypass mode reducing the current consump-
tion to 20 μA. A low cost, leadless 3x3 mm QFN sur-
face mount package (LP3) houses the amplifier. No
external RF matching components are required.
Electrical Specifi cations,
T
A
= +25° C, Vdd = +3V
LNA Mode
Parameter
Min.
Frequency Range
Gain
Gain Variation Over Temperature
Noise Figure
Input Return Loss
Output Return Loss
Reverse Isolation
Input or Output Power for 1dB Compression (P1dB)*
Input Third Order Intercept (IP3)
(-20 dBm Input Power per tone, 1 MHz tone spacing)
Supply Current (Idd)
3
14.5
Typ.
3.4 - 3.6
17
0.012
2.2
12
9
34
6
1
9
4
0.02
2.7
13
Max.
Min.
Typ.
3.6 - 3.8
15.5
0.012
2.0
17
7
33
7
3
9
25
0.02
2.5
-2.8
Max.
Min.
Typ.
3.4 - 3.8
-2.3
0.004
--
18
11
--
28
11
0.03
0.008
--
Max.
GHz
dB
dB / °C
dB
dB
dB
dB
dBm
dBm
mA
LNA Mode
Bypass Mode
Units
* P1dB for LNA Mode is referenced to RFOUT while P1dB for Bypass Mode is referenced to RFIN.
8 - 126
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
HITTITE [ HITTITE MICROWAVE CORPORATION ]
