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PDF HMC812LC4 Data sheet ( Hoja de datos )
| Número de pieza | HMC812LC4 | |
| Descripción | Voltage Variable Attenuator SMT | |
| Fabricantes | Hittite Microwave Corporation | |
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v00.0309
HMC812LC4
GaAs MMIC VOLTAGE-VARIABLE
ATTENUATOR, 5 - 30 GHz
5
Typical Applications
The HMC812LC4 is ideal for:
• Point-to-Point Radio
• VSAT Radio
• Test Instrumentation
• Microwave Sensors
• Military, ECM & Radar
Functional Diagram
Features
Wide Bandwidth: 5 - 30 GHz
Excellent Linearity: +25 dBm Input P1dB
Wide Attenuation Range: 30 dB
24 Lead Ceramic 4x4mm SMT Package: 16mm2
General Description
The HMC812LC4 is an absorptive Voltage Variable
Attenuator (VVA) which operates from 5 - 30 GHz
and is ideal in designs where an analog DC control
signal must be used to control RF signal levels over a
30 dB amplitude range. It features two shunt-type
attenuators which are controlled by two analog vol-
tages, Vctrl1 and Vctrl2. Optimum linearity perfor-
mance of the attenuator is achieved by first varying
Vctrl1 of the 1st attenuation stage from -3V to 0V
with Vctrl2 fixed at -3V. The control voltage of the
2nd attenuation stage, Vctrl2, should then be varied
from -3V to 0V, with Vctrl1 fixed at 0V. The HMC812LC4
is housed in a RoHS compliant 4x4 mm QFN lead-
less ceramic package
However, if the Vctrl1 and Vctrl2 pins are connected
together it is possible to achieve the full analog atten-
uation range with only a small degradation in input
IP3 performance. Applications include AGC circuits
and temperature compensation of multiple gain stages
in microwave point-to-point and VSAT radios.
Electrical Specifications, TA = +25° C, 50 Ohm system
Parameter
Min.
Typ.
Max.
Units
Insertion Loss
5 - 16 GHz
16 - 24 GHz
24 - 30 GHz
2
3
4
dB
dB
dB
Attenuation Range
30 dB
Input Return Loss
12 dB
Output Return Loss
8 dB
Input Power for 1 dB Compression (any attenuation)
25 dBm
Input Third Order Intercept
(Two-tone Input Power = 10 dBm Each Tone)
28 dBm
5 - 218
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
1 page  
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v00.0309
5
Absolute Maximum Ratings
RF Input Power
Control Voltage Range
Channel Temperature
Continuous Pdiss (T = 85 °C)
(derate 16.4 mW/ °C above 85 °C)
Thermal Resistance
(Channel to ground paddle)
Storage Temperature
Operating Temperature
+30 dBm
+1 to -5V
150 °C
1W
61 °C/W
-65 to +150 °C
-40 to +85 °C
HMC812LC4
GaAs MMIC VOLTAGE-VARIABLE
ATTENUATOR, 5 - 30 GHz
Control Voltages
Vctrl1
Vctrl2
-3 to 0V @ 10 μA
-3 to 0V @ 10 μA
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Outline Drawing
5 - 222
NOTES:
1. PACKAGE BODY MATERIAL: LOW STRESS INJECTION MOLDED
PLASTIC SILICA AND SILICON IMPREGNATED.
2. LEAD AND GROUND PADDLE MATERIAL: COPPER ALLOY.
3. LEAD AND GROUND PADDLE PLATING: 100% MATTE TIN.
4. DIMENSIONS ARE IN INCHES [MILLIMETERS].
5. LEAD SPACING TOLERANCE IS NON-CUMULATIVE.
6. PAD BURR LENGTH SHALL BE 0.15mm MAX.
PAD BURR HEIGHT SHALL BE 0.05mm MAX.
7. PACKAGE WARP SHALL NOT EXCEED 0.05mm
8. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED
TO PCB RF GROUND.
9. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED PCB
LAND PATTERN.
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet HMC812LC4.PDF ] | |
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