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PDF HMC977LP4E Data sheet ( Hoja de datos )
| Número de pieza | HMC977LP4E | |
| Descripción | GaAs MMIC I/Q DOWNCONVERTER | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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Typical Applications
The HMC977LP4E is ideal for:
• Point-to-Point and Point-to-Multi-Point Radios
• Military Radar, EW & ELINT
• Satellite Communications
Functional Diagram
HMC977LP4E
v02.0815
GaAs MMIC I/Q DOWNCONVERTER
20 - 28 GHz
Features
Conversion Gain: 14 dB
Image Rejection: 21 dBc
2x LO to RF Isolation: 45 dB
Noise Figure: 2.5 dB
Input Third-Order Intercept: 1 dBm
LO Drive Range: 2 to 6 dBm
24 Lead 4 mm x 4 mm SMT Package
General Description
The HMC977LP4E is a compact GaAs MMIC I/Q
downconverter in a leadless RoHS compliant
SMT package. This device provides a small signal
conversion gain of 14 dB with a noise figure of 2.5
dB and 21 dBc of image rejection. The HMC977LP4E
utilizes a low noise amplifier (LNA) followed by an
image reject mixer which is driven by an active 2x
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. The HMC977LP4E is a
much smaller alternative to hybrid style image reject
mixer downconverter assemblies, and is compatible
with surface mount manufacturing techniques.
Electrical Specifications, TA = +25 °C, IF = 1000 MHz, LO = 6 dBm, Vdd = 3.5 Vdc, USB [1]
Parameter
Min.
Typ. Max.
Min.
Typ.
Max.
Units
RF Frequency Range
20
26.5
26.5
28 GHz
LO Frequency Range
8.3
15 11.5
15.7 GHz
IF Frequency Range
DC 3.5 DC 3.5 GHz
LO Drive Range
2 6 2 6 dBm
Conversion Gain (As IRM)
11 14
11 14
dB
Noise Figure
2.5 3.0 dB
Image Rejection
21 20 dBc
Input Power for 1 dB Compression (P1dB)
-8
-7 dBm
2x LO to RF Isolation
35 45
34 39
dB
2x LO to IF Isolation
20 30 dB
Input Third-Order Intercept (IP3)
1 3 dBm
Amplitude Balance [2]
0.3 0.3 dB
Phase Balance [2]
17 12 Degree
Total Supply Current
170 210
170 210 mA
[1] Unless otherwise noted all measurements performed as downconverter with upper sideband selected and external 90° hybrid at the IF ports.
[2] Data taken without external 90° hybrid at the IF ports.
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1 page  
HMC977LP4E
v02.0815
GaAs MMIC I/Q DOWNCONVERTER
20 - 28 GHz
Data Taken As IRM With External 90° Hybrid at The IF Ports, IF = 1000 MHz, LSB
Conversion Gain vs. RF Frequency Over
Temperature, LO Drive = 6 dBm
25
Conversion Gain vs. RF Frequency at
Various LO Drives
25
20 20
15 15
10 10
55
0
20 21 22 23 24 25 26 27 28
RF FREQUENCY (GHz)
+25 C
+85 C
-40 C
0
20 21 22 23 24 25 26 27 28
RF FREQUENCY (GHz)
2 dBm
4 dBm
6 dBm
8 dBm
Image Rejection vs. RF Frequency Over
Temperature, LO Drive = 6 dBm
0
-10
-20
-30
-40
-50
-60
20
21 22 23 24 25 26
RF FREQUENCY (GHz)
+25 C
+85 C
27 28
-40 C
Input P1dB vs. RF Frequency Over
Temperature, LO Drive = 6 dBm
0
-2
-4
-6
-8
-10
-12
-14
-16
20 21 22 23 24 25 26 27 28
RF FREQUENCY (GHz)
+25 C
+85 C
-40 C
Input IP3 vs. RF Frequency Over
Temperature, LO Drive = 6 dBm
15
10
5
0
-5
-10
-15
20 21 22 23 24 25 26 27 28
RF FREQUENCY (GHz)
+25 C
+85 C
-40 C
Input IP3 vs. RF Frequency at
Various LO Drives
15
10
5
0
-5
-10
-15
20
21 22 23 24 25 26
RF FREQUENCY (GHz)
2 dBm
4 dBm
27 28
6 dBm
8 dBm
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5 Page 
HMC977LP4E
v02.0815
GaAs MMIC I/Q DOWNCONVERTER
20 - 28 GHz
Pin Descriptions
Pin Number
1, 2, 6, 7, 10 -
12, 15,18 - 22
Function
N/C
3 VDRF
Description
No Connection. The pins are not connected internally.
Power supply for the RF low noise amplifier.
Interface Schematic
4
VDLO2
Power supply for the second stage LO amplifier.
5 VDLO1 Power supply for the first stage LO amplifier.
8
9, 13, 17, 24
LO
GND
Local Oscillator. This pin is ac-coupled and matched to
50 Ohms.
Ground Connect. Connect these pins and the package
bottom to RF/dc ground.
Second and First Intermediate Frequency Port. These
16 IF2 pins are dc-coupled. For applications not requiring
operation to dc, block these pins externally using a series
capacitor with a value chosen to pass the necessary IF
frequency range. For operation to dc, these pins must
not source or sink more than 3 mA of current or device
14 IF1
non-functionality or device failure may result.
23
RF
Radio Frequency Port. This pin is ac-coupled and
matched to 50 Ohms.
Typical Application Circuit
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11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet HMC977LP4E.PDF ] | |
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