Downconverter. HMC977 Datasheet

HMC977 Downconverter. Datasheet pdf. Equivalent

Part HMC977
Description Downconverter
Feature Data Sheet FEATURES Conversion gain: 14 dB typical Image rejection: 21 dBc typical at 20 GHz to 26.5.
Manufacture Analog Devices
Datasheet
Download HMC977 Datasheet



HMC977
Data Sheet
FEATURES
Conversion gain: 14 dB typical
Image rejection: 21 dBc typical at 20 GHz to 26.5 GHz
2× LO to RF isolation: 45 dB typical at 20 GHz to 26.5 GHz
Noise figure: 2.5 dB typical at 20 GHz to 26.5 GHz
Input IP3: 1 dBm typical at 20 GHz to 26.5 GHz
LO drive range: 2 dBm to 6 dBm
24-lead 4 mm × 4 mm LFCSP
APPLICATIONS
Point to point and point to multipoint radios
Military radar, electronic warfare (EW), and electronic
intelligence (ELINT)
Satellite communications
GaAs, MMIC, I/Q, Downconverter,
20 GHz to 28 GHz
HMC977
FUNCTIONAL BLOCK DIAGRAM
HMC977
NIC 1
NIC 2
VDRF 3
VDLO2 4
VDLO1 5
×2
NIC 6
18 NIC
17 GND
16 IF2
15 NIC
14 IF1
13 GND
GENERAL DESCRIPTION
The HMC977 is a compact, gallium arsenide (GaAs),
monolithic microwave integrated circuit (MMIC), inphase and
quadrature (I/Q) downconverter in a leadless, RoHS compliant,
surface-mount technology (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 HMC977 utilizes a
low noise amplifier (LNA) followed by an image reject mixer
which is driven by an active 2× multiplier. The image reject
Figure 1.
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 required to
select the required sideband. The HMC977 is a much smaller
alternative to hybrid style image reject mixer downconverter
assemblies and is compatible with surface-mount manufacturing
techniques.
Rev. D
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HMC977
HMC977
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Electrical Specifications............................................................... 3
Absolute Maximum Ratings............................................................ 4
Thermal Resistance ...................................................................... 4
ESD Caution.................................................................................. 4
Pin Configuration and Function Descriptions............................. 5
Interface Schematics..................................................................... 6
Typical Performance Characteristics ............................................. 7
Data Taken as IRM with External 90° Hybrid at the IF Ports,
IF = 1000 MHz, Upper Sideband ............................................... 7
Quadrature Channel Data Taken Without 90° Hybrid at the
IF Ports, IF = 1000 MHz, Upper Sideband ............................... 9
REVISION HISTORY
This Hittite Microwave Products data sheet has been reformatted
to meet the styles and standards of Analog Devices, Inc.
11/2019—v02.0815 to Rev. D
Updated Format..................................................................Universal
Changed HMC977LP4E to HMC977 ..............................Universal
Changes to Figure 1 .......................................................................... 1
Changes to the Electrical Specifications Section.......................... 3
Data Sheet
Data Taken as IRM with External 90° Hybrid at the IF Ports,
IF = 1000 MHz, Lower Sideband ............................................. 10
Data Taken as IRM with External 90° Hybrid at the IF Ports,
IF = 2000 MHz, Upper Sideband ............................................. 11
Data Taken as IRM with External 90° Hybrid at the IF Ports,
IF = 2000 MHz, Lower Sideband ............................................. 12
Data Taken as IRM with External 90° Hybrid at the IF Ports,
IF = 3300 MHz, Upper Sideband ............................................. 13
Data Taken as IRM with External 90° Hybrid at the IF Ports,
IF = 3300 MHz, Lower Sideband ............................................. 14
Spurious Performance ............................................................... 15
Theory of Operation ...................................................................... 16
Applications Information .............................................................. 17
Evaluation PCB........................................................................... 18
Layout .......................................................................................... 19
Outline Dimensions ....................................................................... 20
Ordering Guide .......................................................................... 20
Added Figure 2; Renumbered Sequentially ...................................5
Changes to M × N Spurious Outputs,
IF = 1000 MHz Section.................................................................. 15
Added Theory of Operation Section ........................................... 16
Added Applications Information Section ................................... 17
Changes to Figure 52...................................................................... 17
Change to Table 6 ........................................................................... 18
Added Figure 54 ............................................................................. 19
Rev. D | Page 2 of 20





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