HMC570_11 Datasheet, PDF (1/8 Pages) Hittite Microwave Corporation – GaAs MMIC I/Q DOWNCONVERTER 17 - 21 GHz

v03.0711
HMC570
GaAs MMIC I/Q DOWNCONVERTER
17 - 21 GHz
2
2-1
Typical Applications
The HMC570 is ideal for:
• Point-to-Point and Point-to-Multi-Point Radio
• Military Radar, EW & ELINT
• Satellite Communications
Features
10 dB Conversion Gain
Image Rejection: 17 dB
2 LO to RF Isolation: 35 dB
Noise Figure: 3 dB
Input IP3: +3 dBm
Die Size: 2.33 x 2.73 x 0.10 mm
Functional Diagram
General Description
The HMC570 is a compact GaAs MMIC I/Q
downconverter chip which provides a small signal
conversion gain of 10 dB with a noise figure of 3 dB
and 17 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
Frequency Range, RF
Frequency Range, LO
Frequency Range, IF
Conversion Gain (As IRM)
Noise Figure
Image Rejection
1 dB Compression (Input)
2 LO to RF Isolation
2 LO to IF Isolation
IP3 (Input)
Amplitude Balance
Phase Balance
Total Supply Current
*Data taken as IRM with external IF hybrid
Min.
Typ.
Max.
17.7 - 19.7
7 - 12
DC - 3.5
9
10
3
14
17
-7
-4
35
40
28
30
-5
-2
0.5
12
125
165
Min.
Typ.
Max.
17 - 21
7 - 12
DC - 3.5
9
12
4
14
22
-10
-6
30
35
25
30
-6
+3
0.5
4
125
165
Units
GHz
GHz
GHz
dB
dB
dB
dBm
dB
dB
dBm
dB
Deg
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]