HMC951LP4E
v03.0513
GaAs MMIC I/Q DOWNCONVERTER
5.6 - 8.6 GHz
Features
Conversion Gain: 13 dB
Image Rejection: 20 dB
LO to RF Isolation: 48 dB
Noise Figure: 2.3 dB
Input IP3: 3 dBm
Typical Applications
The HMC951LP4E is ideal for:
9
mixers - i/q mixers, irms & receivers - smT
• Point-to-Point and Point-to-Multi-Point Radio
• Military Radar, EW & ELINT
• Satellite Communications
Functional Diagram
24 Lead 4x4 mm SMT Package: 16 mm²
General Description
The HMC951LP4E is a compact GaAs MMIC I/Q
downconverter in a leadless RoHS compliant
SMT package. This device provides a small signal
conversion gain of 13 dB with a noise figure of 2 dB
and 25 dB of image rejection across the frequency
band. The HMC951LP4E utilizes an LNA followed by
an image reject mixer which is driven by an LO buffer
amplifier. 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. The HMC951LP4E is a
much smaller alternative to hybrid style image reject
mixer downconverter assemblies, and is compatible
with surface mount manufacturing techniques.
Electrical Specifications,
T
A
= +25 °C, IF = 1000 MHz, LO = 0 dBm, Vdd = 5 V LSB
[1]
Parameter
Frequency Range, RF
Frequency Range, LO
Frequency Range, IF
Conversion Gain (As IRM)
Noise Figure
Image Rejection
1 dB Compression (Input)
LO to RF Isolation
LO to IF Isolation
IP3 (Input)
Amplitude Balance
[2]
Phase Balance
[2]
Total Supply Current @LO = 0dBm
Idd
Idd1
Idd2
[1] Data taken as IRM with external IF 90° Hybrid.
[2] Data taken without external 90° hybrid, IF = 1000 MHz.
[3] Current is set by the external bias resistor. Idq of LO Amp = 140 mA.
[3]
Min.
Typ.
5.6 - 8.6
3 - 12.1
DC - 3.5
Max.
Units
GHz
GHz
GHz
dB
dB
dBc
dBm
dB
dB
dBm
dB
deg
10
13
2
13
25
-3
40
20
48
30
3
1
-7
55
78
97
60
85
105
mA
9-1
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC951LP4E
v03.0513
GaAs MMIC I/Q DOWNCONVERTER
5.6 - 8.6 GHz
Data Taken As IRM With External IF 90° Hybrid, IF = 1000 MHz
Conversion Gain LSB vs. Temperature
18
17
CONVERSION GAIN (dB)
CONVERSION GAIN (dB)
16
15
14
13
12
11
10
9
8
5.6
6.1
6.6
7.1
7.6
8.1
8.6
Conversion Gain LSB vs. LO Drive
18
17
16
9
mixers - i/q mixers, irms & receivers - smT
9-2
15
14
13
12
11
10
9
8
5.6
6.1
6.6
7.1
7.6
8.1
8.6
RF FREQUENCY (GHz)
+25C
+85C
-40C
RF FREQUENCY (GHz)
-4 dBm
-2 dBm
0 dBm
+2 dBm
+4 dBm
Image Rejection LSB vs. Temperature
45
40
IMAGE REJECTION (dBc)
RF Return Loss vs. Temperature
0
-4
RETURN LOSS (dB)
35
30
25
20
15
10
5
0
5.6
-8
-12
-16
-20
6.1
6.6
7.1
7.6
8.1
8.6
5
5.5
6
6.5
7
7.5
8
8.5
9
RF FREQUENCY (GHz)
+25C
+85C
-40C
RF FREQUENCY (GHz)
+25C
+85C
-40C
LO Return Loss vs. Temperature
0
-4
RETURN LOSS (dB)
IF Return Loss
[1]
0
-5
RETURN LOSS (dB)
-8
-10
-12
-15
-16
-20
-20
5
5.5
6
6.5
7
7.5
8
8.5
9
RF FREQUENCY (GHz)
+25C
+85C
-40C
-25
0
0.5
1
1.5
2
2.5
3
3.5
4
RF FREQUENCY (GHz)
IF1
IF2
[1] Data taken without external 90° hybrid.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC951LP4E
v03.0513
GaAs MMIC I/Q DOWNCONVERTER
5.6 - 8.6 GHz
Data Taken as IRM With External IF 90° Hybrid, IF = 1000 MHz
9
mixers - i/q mixers, irms & receivers - smT
Isolations
0
-10
ISOLATION (dB)
-20
-30
-40
-50
-60
5.6
Input P1dB LSB vs. Temperature
0
-2
-4
P1dB (dBm)
-6
-8
-10
-12
-14
-16
5.6
6.1
6.6
7.1
7.6
8.1
8.6
6.1
6.6
7.1
7.6
8.1
8.6
RF FREQUENCY (GHz)
LO/RF
RF/IF1
LO/IF1
RF/IF2
LO/IF2
+25 C
RF FREQUENCY (GHz)
+85 C
-40 C
Input IP3, LSB vs. Temperature
10
9
8
7
6
IP3 (dBm)
Input IP3, LSB vs. LO Drive
10
9
8
7
IP3 (dBm)
6
5
4
3
2
1
5
4
3
2
1
0
-1
-2
5.5
6
6.5
7
7.5
8
8.5
9
0
5.5
6
6.5
7
7.5
8
8.5
9
RF FREQUENCY (GHz)
+25C
+85C
-40C
RF FREQUENCY (GHz)
-2 dBm
0 dBm
+2 dBm
+4 dBm
Noise Figure vs. Temperature,
IF Frequency = 1000 MHz
6
5
NOISE FIGURE (dB)
4
3
2
1
0
5.6
6.1
6.6
7.1
7.6
8.1
8.6
RF FREQUENCY (GHz)
+25C
+85C
-40C
9-3
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC951LP4E
v03.0513
GaAs MMIC I/Q DOWNCONVERTER
5.6 - 8.6 GHz
Quadrature Channel Data Taken Without IF 90° Hybrid, IF = 1000 MHz
IF Bandwidth
20
Amplitude Balance vs. LO Drive
[1]
2
1.5
AMPLITUDE BALANCE (dB)
9
mixers - i/q mixers, irms & receivers - smT
9-4
10
RESPONSE (dB)
1
0.5
0
-0.5
-1
-1.5
-2
5.6
0
-10
-20
0.5
1
1.5
2
2.5
3
3.5
4
6.1
6.6
7.1
7.6
8.1
8.6
IF FREQUENCY (GHz)
CONVERSION GAIN
RETURN LOSS
RF FREQUENCY (GHz)
LO = -4 dBm
LO = -2 dBm
LO = 0 dBm
LO = +2 dBm
Phase Balance vs. LO Drive
[1]
5
PHASE BALANCE (deg)
0
-5
-10
-15
-20
16
17
18
19
20
21
22
23
24
25
RF FREQUENCY (GHz)
LO = +2 dBm
LO = +4 dBm
LO = +6 dBm
LO = +8 dBm
[1] Data taken with IF = 1000 MHz
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC951LP4E
v03.0513
GaAs MMIC I/Q DOWNCONVERTER
5.6 - 8.6 GHz
Data Taken as IRM With External IF 90° Hybrid, IF = 1000 MHz
9
mixers - i/q mixers, irms & receivers - smT
Conversion Gain, USB vs. Temperature
18
17
CONVERSION GAIN (dB)
Conversion Gain, USB vs. LO Drive
18
17
CONVERSION GAIN (dB)
16
15
14
13
12
11
10
9
16
15
14
13
12
11
10
9
8
5.6
6.1
6.6
7.1
7.6
8.1
8.6
8
5.6
6.1
6.6
7.1
7.6
8.1
8.6
RF FREQUENCY (GHz)
+25C
+85C
-40C
RF FREQUENCY (GHz)
-4 dBm
-2 dBm
0 dBm
+2 dBm
+4 dBm
Image Rejection USB vs. Temperature
45
40
IMAGE REJECTION (dBc)
35
Input P1dB, USB vs. Temperature
0
-2
-4
P1dB (dBm)
-6
-8
-10
-12
-14
-16
5.6
30
25
20
15
10
5
0
5.6
6.1
6.6
7.1
7.6
8.1
8.6
6.1
6.6
7.1
7.6
8.1
8.6
RF FREQUENCY (GHz)
+25C
+85C
-40C
RF FREQUENCY (GHz)
+25 C
+85 C
-40 C
Input IP3, USB vs. Temperature
8
7
6
5
IP3 (dBm)
4
3
2
1
0
-1
-2
5.5
6
6.5
7
7.5
8
8.5
9
Input IP3, USB vs. LO Drive
9
8
7
6
IP3 (dBm)
5
4
3
2
1
0
-1
5.5
6
6.5
7
7.5
8
8.5
9
FREQUENCY (GHz)
+25C
+85C
-40C
FREQUENCY (GHz)
-2 dBm
0 dBm
+2 dBm
+4 dBm
9-5
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
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