HMC572 Datasheet, PDF (1/8 Pages) Hittite Microwave Corporation – GaAs MMIC I/Q DOWNCONVERTER 24 - 28 GHz

v01.1007
HMC572
GaAs MMIC I/Q DOWNCONVERTER
24 - 28 GHz
Typical Applications
The HMC572 is ideal for:
• Point-to-Point and Point-to-Multi-Point Radio
3
• Military Radar, EW & ELINT
• Satellite Communications
Features
Conversion Gain: 8 dB
Image Rejection: 20 dB
2 LO to RF Isolation: 40 dB
Noise Figure: 3.5 dB
Input IP3: +5 dBm
Die Size: 2.33 x 2.37 x 0.10 mm
3 - 148
Functional Diagram
General Description
The HMC572 is a compact GaAs MMIC I/Q
downconverter chip which provides a small signal
conversion gain of 8 dB with a noise figure of 3.5 dB
and 20 dB of image rejection across the frequency
band. The device utilizes an LNA followed by an image
reject mixer which is driven by an active x2 multiplier.
The image reject mixer eliminates the need for a filter
following the LNA, and removes thermal noise at the
image frequency. I and Q mixer outputs are provided
and an external 90° hybrid is needed to select the
required sideband. All data shown below is taken
with the chip mounted in a 50 Ohm test fixture and
includes the effects of 1 mil diameter x 20 mil length
bond wires on each port. This product is a much
smaller alternative to hybrid style image reject mixer
downconverter assemblies.
Electrical Specifications, T_A = +25° C, IF = 100 MHz, LO = +4 dBm, Vdd = 3.5 Vdc*
Parameter
Min.
Frequency Range, RF
Frequency Range, LO
Frequency Range, IF
Conversion Gain (As IRM)
7
Noise Figure
Image Rejection
17
1 dB Compression (Input)
-7
2 LO to RF Isolation
40
2 LO to IF Isolation
28
IP3 (Input)
+5
Amplitude Balance
Phase Balance
Total Supply Current
*Data taken as IRM with external IF 90° hybrid
Typ.
24.5 - 26.5
9 - 15.5
DC - 3.5
9
3.5
20
-5
43
32
+7
0.3
5
125
Max.
150
Min.
Typ.
Max.
24 - 28
9 - 15.5
DC - 3.5
7
9
3.5
17
23
-8
-6
38
45
27
30
+3
+5
0.7
7
125
150
Units
GHz
GHz
GHz
dB
dB
dB
dBm
dB
dB
dBm
dB
Deg
mA
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