HMC491LP3_09 Datasheet, PDF (1/6 Pages) Hittite Microwave Corporation – GaAs MMIC LOW NOISE AMPLIFIER w/ BYPASS MODE, 3.4 - 3.8 GHz

v03.1206
8
Typical Applications
The HMC491LP3 / HMC491LP3E is ideal for:
• Wireless Local Loop (WLL)
• Fixed Wireless Access
• Microwave & VSAT Radios
Functional Diagram
HMC491LP3 / 491LP3E
GaAs MMIC LOW NOISE AMPLIFIER
w/ BYPASS MODE, 3.4 - 3.8 GHz
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
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.
8 - 126
Electrical Specifications, T_A = +25° C, Vdd = +3V
Parameter
Frequency Range
Gain
Gain Variation Over Temperature
LNA Mode
Min. Typ. Max.
3.4 - 3.6
14.5 17
0.012 0.02
LNA Mode
Min. Typ. Max.
3.6 - 3.8
13 15.5
0.012 0.02
Bypass Mode
Min. Typ. Max.
Units
3.4 - 3.8
GHz
-2.8 -2.3
dB
0.004 0.008 dB / °C
Noise Figure
2.2
2.7
2.0
2.5
--
--
dB
Input Return Loss
12
17
18
dB
Output Return Loss
9
7
11
dB
Reverse Isolation
34
33
--
dB
Input or Output Power for 1dB Compression (P1dB)*
3
6
4
7
25
28
dBm
Input Third Order Intercept (IP3)
1
3
11
dBm
(-20 dBm Input Power per tone, 1 MHz tone spacing)
Supply Current (Idd)
9
9
0.03
mA
* P1dB for LNA Mode is referenced to RFOUT while P1dB for Bypass Mode is referenced to RFIN.
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
Order On-line at www.hittite.com