HMC290
/
290E
v01.0605
2 dB LSB GaAs MMIC 2-BIT DIGITAL
ATTENUATOR, 0.7 - 4.0 GHz
5
ATTENUATORS - DIGITAL - SMT
Typical Applications
The HMC290 / HMC290E is ideal for:
• Cellular
• PCS, ISM, MMDS
• WLL Handset & BaseStation
Features
2 dB LSB Steps to 6 dB
Single Positive Control Per BIT
±0.2 dB Typical Bit Error
Miniature SOT 26 Package: 9 mm
2
Functional Diagram
General Description
The HMC290 & HMC290E are broadband 2 - bit
positive control GaAs IC digital attenuators in 6 lead
SOT26 surface mount plastic packages. Covering 0.7
to 4 GHz, the insertion loss is typically less than 0.7
dB. The attenuator bit values are 2 (LSB) and 4 dB for
a total attenuation of 6 dB. Accuracy is excellent at ±
0.2 dB typical with an IIP3 of up to +52 dBm. Two bit
control voltage inputs, toggled between 0 and +3 to
+5 volts, are used to select each attenuation state at
less than 50 uA each. A single Vdd bias of +3 to +5
volts applied through an external 5K Ohm resistor is
required. Occupying less than 9 mm2, this is the small-
est 2 - bit digital attenuator available.
Electrical Specifi cations,
T
A
= +25° C, Vdd = +3V to +5V & Vctl = 0/Vdd (Unless Otherwise Stated)
Parameter
Frequency
0.7 - 1.4 GHz
1.4 - 2.3 GHz
2.3 - 2.7 GHz
2.7 - 4.0 GHz
0.7 - 4.0 GHz
0.7 - 2.7 GHz
2.7 - 4.0 GHz
16
15
Min.
Typical
0.5
0.5
0.6
0.8
6
20
18
Max.
0.7
0.8
0.9
1.2
Units
dB
dB
dB
dB
dB
dB
dB
Insertion Loss
Attenuation Range
Return Loss (RF1 & RF2, All Atten. States)
Attenuation Accuracy: (Referenced to Insertion Loss)
2, 4 dB States
6 dB States
Input Power for 0.1 dB Compression
Input Third Order Intercept Point
(Two-tone Input Power = 0 dBm Each Tone)
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
5V
3V
5V
3V
0.7 - 4.0 GHz
0.7 - 4.0 GHz
0.7 - 4.0 GHz
0.7 - 4.0 GHz
± 0.2 + 2% of Atten. Setting Max
± 0.3 + 2% of Atten. Setting Max
27
24
52
50
dB
dB
dBm
dBm
dBm
dBm
0.7 - 4.0 GHz
400
420
ns
ns
5 - 36
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
For price, delivery, and to place orders, please contact Hittite
Way, P.O. Box 9106, Norwood, MA 02062-9106
Microwave Corporation:
One Technology
20 Alpha Road, Chelmsford, MA 01824 Phone:
Phone: 781-329-4700 • Order online at www.analog.com
978-250-3343 Fax: 978-250-3373
Application Support: Phone: 1-800-ANALOG-D
Order On-line at www.hittite.com
HMC290
/
290E
v01.0605
2 dB LSB GaAs MMIC 2-BIT DIGITAL
ATTENUATOR, 0.7 - 4.0 GHz
Insertion Loss
0
-0.25
INSERTION LOSS (dB)
Return Loss RF1, RF2
0
-5
RETURN LOSS (dB)
-10
-15
-20
-25
-30
0.5
2 dB
4 dB
6 dB
5
ATTENUATORS - DIGITAL - SMT
5 - 37
-0.5
-0.75
-1
-1.25
-1.5
0.5
+25 C
-40 C
+85 C
1
1.5
2
2.5
3
3.5
4
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
FREQUENCY (GHz)
Normalized Attenuation
0
NORMALIZED ATTENUATION (dB)
-1
-2
-3
-4
-5
-6
-7
-8
0.5
2 dB
4 dB
6 dB
Absolute Bit Error
vs. Attenuation State
1
0.75
BIT ERROR (dB)
0.5
0.9 GHz
2.4 GHz
1.9 GHz
3.5 GHz
0.25
0
1
1.5
2
2.5
3
3.5
4
2
4
ATTENUATION STATE (dB)
6
FREQUENCY (GHz)
Absolute Bit Error vs. Frequency
1
Relative Phase vs. Frequency
20
15
10
5
0
-5
2 dB
4 dB
6 dB
0.75
BIT ERROR (dB)
2 dB
4 dB
6 dB
0.5
0.25
0
0.5
RELATIVE PHASE (deg.)
3
3.5
4
1
1.5
2
2.5
-10
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
FREQUENCY (GHz)
Note: All Data Typical Over Voltage (+3V to +5V) & Temperature (-40 to +85 deg. C.).
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
For price, delivery, and to place orders, please contact Hittite
Way, P.O. Box 9106, Norwood, MA 02062-9106
Microwave Corporation:
One Technology
20 Alpha Road, Chelmsford, MA 01824 Phone:
Phone: 781-329-4700 • Order online at www.analog.com
978-250-3343 Fax: 978-250-3373
Application Support: Phone: 1-800-ANALOG-D
Order On-line at www.hittite.com
HMC290
/
290E
v01.0605
2 dB LSB GaAs MMIC 2-BIT DIGITAL
ATTENUATOR, 0.7 - 4.0 GHz
5
ATTENUATORS - DIGITAL - SMT
Truth Table
Control Voltage Input
V2
4 dB
High
High
Low
Low
V1
2 dB
High
Low
High
Low
Attenuation
Setting
RF1 - RF2
Reference I.L.
2 dB
4 dB
6 dB
Max. Atten.
Control & Bias Voltages
State
Low
High
Bias Condition
0 to + 0.2V @ 20 uA Max
Vdd ± 0.2V @ 50 uA Max
Note: Vdd = +3V to 5V ± 0.2V
Absolute Maximum Ratings
Control Voltage (V1, V2)
Bias Voltage (Vdd)
Storage Temperature
Operating Temperature
Vdd + 0.5 Vdc
+ 8.0 Vdc
-65 to +150 °C
-40 to +85 °C
+28 dBm
Any combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
RF Input Power (0.7 - 4 GHz)
Outline Drawing
NOTES:
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS]
3. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE.
4. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE.
5. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND
Package Information
Part Number
HMC290
HMC290E
Package Body Material
Low Stress Injection Molded Plastic
RoHS-compliant Low Stress Injection Molded Plastic
Lead Finish
Sn/Pb Solder
100% matte Sn
MSL Rating
MSL1
MSL1
[1]
Package Marking
[3]
H290
XXXX
290E
XXXX
[2]
[1] Max peak reflow temperature of 235 °C
[2] Max peak reflow temperature of 260 °C
[3] 4-Digit lot number XXXX
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
5 - 38
For price, delivery, and to place orders: Analog Devices, Inc.,
For price, delivery, and to place orders, please contact Hittite
Way, P.O. Box 9106, Norwood, MA 02062-9106
Microwave Corporation:
One Technology
20 Alpha Road, Chelmsford, MA 01824 Phone:
Phone: 781-329-4700 • Order online at www.analog.com
978-250-3343 Fax: 978-250-3373
Application Support: Phone: 1-800-ANALOG-D
Order On-line at www.hittite.com
HMC290
/
290E
v01.0605
2 dB LSB GaAs MMIC 2-BIT DIGITAL
ATTENUATOR, 0.7 - 4.0 GHz
Application Circuit
5
DC blocking capacitors C1 & C2 are required on RF1 &
RF2. Choose C1 = C2 = 100 ~ 300 pF to allow lowest
customer specific frequency to pass with minimal loss.
R1 = 5K Ohm is required to supply voltage to the circuit
through either PIN 3 or PIN 1.
Evaluation Circuit Board
* R2 = R3 = 100 Ohm.
These resistors are optional
and may be used to enhance
decoupling of the RF path
from the control inputs.
List of Materials for Evaluation PCB 103372
[1]
Item
J1 - J2
J3 - J6
R1
R2, R3
C1, C2
U1
PCB
[2]
Description
PCB Mount SMA Connector
DC Pin
5k Ohm Resistor, 0402 Chip
100 Ohm Resistor, 0402 Chip
0402 Chip Capacitor, Select for Lowest
Frequency of Operation
HMC290 / HMC290E Digital Attenuator
103370 Evaluation PCB 1.5” x 1.5”
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
The circuit board used in the final application should
use RF circuit design techniques. Signal lines
should have 50 ohm impedance while the pack-
age ground leads should be connected directly to
the ground plane similar to that shown. A sufficient
number of via holes should be used to connect the
top and bottom ground planes. The evaluation cir-
cuit board as shown is available from Hittite Micro-
wave Corporation upon request.
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
For price, delivery, and to place orders, please contact Hittite
Way, P.O. Box 9106, Norwood, MA 02062-9106
Microwave Corporation:
One Technology
20 Alpha Road, Chelmsford, MA 01824 Phone:
Phone: 781-329-4700 • Order online at www.analog.com
978-250-3343 Fax: 978-250-3373
Application Support: Phone: 1-800-ANALOG-D
Order On-line at www.hittite.com
5 - 39
ATTENUATORS - DIGITAL - SMT
DIY/开源硬件专区
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
