HMC997LC4 Datasheet, PDF (1/8 Pages) Hittite Microwave Corporation – Variable Gain Amplifier 17 to 27 GHz

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Typical Applications
The HMC997LC4 is ideal for:
• Point-to-Point Radio
• Point-to-Multi-Point Radio
• EW & ECM Subsystems
• Ka-Band Radar
• Test Equipment
Functional Diagram
HMC997LC4
Variable Gain Amplifier
17 to 27 GHz
Features
Wide Gain Control Range: 15 dB
Single Control Voltage
Output IP3 @ Max Gain: +31 dBm
Output P1dB: +24 dBm
No External Matching
24 Lead 4x4 mm SMT Package: 16 mm²
General Description
The HMC997LC4 is a GaAs MMIC PHEMT analog
variable gain amplifier and / or driver amplifier which
operates between 17 and 27 GHz. Ideal for microwave
radio applications, the amplifier provides up to 20.5 dB
of gain, output P1dB of up to +24 dBm, and up to +31
dBm of output IP3 at maximum gain, while requiring
only 170 mA from a +5V supply. A gain control voltage
(Vctrl) is provided to allow variable gain control up to 15
dB. Gain flatness is excellent making the HMC997LC4
ideal for EW, ECM and radar applications. The
HMC997LC4 is housed in a RoHS compliant 4 x 4 mm
ceramic QFN leadless package and is compatible with
high volume surface mount manufacturing.
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Electrical Specifications, T_A = +25°C, Vdd1, 2, 3 = 5V, Vctrl= -4.5V, Idd = 170 mA*
Parameter
Min.
Typ.
Max.
Min.
Frequency Range
17 - 21
Gain
17.0
20
16
Gain Flatness
±0.3
Gain Variation Over Temperature
0.02
Gain Control Range
12
15
12
Noise Figure
4.0
Input Return Loss
13
Output Return Loss
17
Output Power for 1 dB Compression (P1dB)
21
24
21
Saturated Output Power (Psat)
25
Output Third Order Intercept (IP3)
31
Total Supply Current (Idd)
170
*Set Vctrl = -4.5V and then adjust Vgg1, 2 between -2V to 0V to achieve Idd = 170mA typical.
Typ.
21 - 27
19
±0.7
0.02
14
3.5
12
19
24
24.5
30
170
Max.
Units
GHz
dB
dB
dB/ °C
dB
dB
dB
dB
dBm
dBm
dBm
mA
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: [phone] Fax: [phone] Order On-line at www.hittite.com
Application Support: Phone: [phone] or [e-mail]