ATTENUATORS - SMT
5
5 - 60
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
0.5 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.7 - 3.8 GHz
General Description
Features
Functional Diagram
The HMC306MS10 & HMC306MS10E are general
purpose broadband 5-bit positive control GaAs IC
digital attenuators in 10 lead MSOP surface mount
plastic packages. Covering 0.7 to 3.8 GHz, the
insertion loss is typically less than 1.5 to 2.3 dB.
These attenuators’ bit values are 0.5 (LSB), 1, 2, 4 and
8 dB for a total attenuation of 15.5 dB. Attenuation
accuracy is excellent at ± 0.2 dB typical with an IIP3
of up to +52 dBm. Five bit control voltage inputs, toggled
between 0 and +3 to +5V, are used to select each
attenuation state. A single Vdd bias of +3 to +5V ap-
plied through an external 5K Ohm resistor is required.
RoHS-Compliant Product
0.5 dB LSB Steps to 15.5 dB
Single Positive Control Per Bit
± 0.2 dB Typical Bit Error
Miniature 15 mm2 Package: MSOP10
Included in the HMC-DK004 Designer’s Kit
Electrical Speci cations,
TA = +25° C, Vdd= +3V to +5V & VCTL= 0/Vdd (Unless Otherwise Stated)
Typical Applications
The HMC306MS10 / HMC306MS10E is ideal for:
• Cellular; UMTS/3G Infrastructure
• ISM, MMDS, WLAN, WiMAX
• Microwave Radio & VSAT
• Test Equipment and Sensors
Parameter Frequency (GHz) Min. Typical Max. Units
Insertion Loss
0.7 - 1.4
1.4 - 2.3
2.3 - 2.7
2.7 - 3.8
1. 3
1. 5
1. 8
2.3
1. 6
2.0
2.5
2.7
dB
dB
dB
dB
Attenuation Range 15.5 dB
Return Loss (RF1 & RF2, All Atten. States)
0.7 - 1.4
1.4 - 2.3
2.3 - 2.7
2.7 - 3.8
15
14
13
10
21
18
16
13
dB
dB
dB
dB
Attenuation Accuracy: (Referenced to Insertion Loss)
All Attenuation States
0.5 - 7.5 dB States
8.0 - 15.5 dB States
All Attenuation States
0.7 - 1.4
1.4 - 2.3
1.4 - 2.3
2.3 - 3.8
± (0.30 + 5% of Atten. Setting) Max.
± (0.25 + 3% of Atten. Setting) Max.
± (0.15 + 3% of Atten. Setting) Max.
± (0.30 + 3% of Atten. Setting) Max.
dB
dB
dB
dB
Input Power for 0.1 dB Compression Vdd = 5V
Vdd = 3V 0.7 - 3.8 25
23
dBm
dBm
Input Third Order Intercept Point
(Two-tone Input Power = 0 dBm Each Tone)
Vdd = 5V
Vdd = 3V 0.7 - 3.8 52
48
dBm
dBm
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
0.7 - 3.8 560
600
ns
ns
HMC306MS10 / 306MS10E
v06.0206
OBSOLETE
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.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
ATTENUATORS - SMT
5
5 - 61
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
0.5 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.7 - 3.8 GHz
Return Loss RF1, RF2
(Only Major States are Shown)
Absolute Bit Error vs. Attenuation State
Insertion Loss
Normalized Attenuation
(Only Major States are Shown)
Absolute Bit Error vs. Frequency
(Only Major States are Shown)
Relative Phase vs. Frequency
(Only Major States are Shown)
HMC306MS10 / 306MS10E
v06.0206
-4
-3.5
-3
-2.5
-2
-1.5
-1
-0.5
0
0.5 1 1.5 2 2.5 3 3.5 4
+25 C
-40 C
+85 C
INSERTION LOSS (dB)
FREQUENCY (GHz)
0
0.3
0.6
0.9
1.2
1.5
0.5 2 3.5 5 6.5 8 9.5 11 12.5 14 15.5
0.9 GHz
1.9 GHz
2.4 GHz
3.5 GHz
BIT ERROR (dB)
ATTENUATION STATE (dB)
-40
-20
0
20
40
60
0.5 1 1.5 2 2.5 3 3.5 4
2 dB
4 dB
8 dB
15.5 dB
RELATIVE PHASE (deg.)
FREQUENCY (GHz)
0.5, 1 dB
0
0.3
0.6
0.9
1.2
1.5
0.5 1 1.5 2 2.5 3 3.5 4
4 dB
8 dB
15.5 dB
BIT ERROR (dB)
FREQUENCY (GHz)
0.5, 1, 2 dB
-18
-15
-12
-9
-6
-3
0
0.5 1 1.5 2 2.5 3 3.5 4
0.5 dB
1 dB
2 dB
4 dB
8 dB
15.5 dB
NORMALIZED ATTENUATION (dB)
FREQUENCY (GHz)
-30
-25
-20
-15
-10
-5
0
0.5 1 1.5 2 2.5 3 3.5 4
0.5 dB
1 dB
2 dB
4 dB
8 dB
14 dB
RETURN LOSS (dB)
FREQUENCY (GHz)
OBSOLETE
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.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
ATTENUATORS - SMT
5
5 - 62
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
Application Circuit
Truth Table Control & Bias Voltages
Note:
DC Blocking Capacitors C1 & C2 are required on RF1 & RF2. Choose C1 = C2 = 100 ~ 300 pF to allow lowest customer
speci c frequency to pass with minimal loss. R1= 5K Ohm is required to supply voltage to the circuit through either Pin 6
or Pin 10.
Control Voltage Input Attenuation
State
RF1 - RF2
V1
8 dB
V2
4 dB
V3
2 dB
V4
1 dB
V5
0.5 dB
High High High High High Reference I.L.
High High High High Low 0.5 dB
High High High Low High 1 dB
High High Low High High 2 dB
High Low High High High 4 dB
Low High High High High 8 dB
Low Low Low Low Low 15.5 dB
Max. Atten.
Any combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
State Bias Condition
Low 0 to +0.2V @ 20 μA Max.
High Vdd ± 0.2V @ 20 μA Max.
Note: Vdd = +3V to 5V ± 0.00.20.20.2V
0.5 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.7 - 3.8 GHz
HMC306MS10 / 306MS10E
v06.0206
OBSOLETE
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.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
ATTENUATORS - SMT
5
5 - 63
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
Outline Drawing
Absolute Maximum Ratings
Control Voltage (V1 - V5) Vdd + 0.5 Vdc
Bias Voltage (Vdd) +8.0 Vdc
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
RF Input Power (0.7 - 3.8 GHz) +28 dBm
ESD Sensitivity (HBM) Class 1A
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
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.
Part Number Package Body Material Lead Finish MSL Rating Package Marking [3]
HMC306MS10 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 [1] H306
XXXX
HMC306MS10E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] H306
XXXX
[1] Max peak re ow temperature of 235 °C
[2] Max peak re ow temperature of 260 °C
[3] 4-Digit lot number XXXX
Package Information
0.5 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.7 - 3.8 GHz
HMC306MS10 / 306MS10E
v06.0206
OBSOLETE
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.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
ATTENUATORS - SMT
5
5 - 64
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
Evaluation Circuit Board
The circuit board used in the nal application should
use RF circuit design techniques. Signal lines should
have 50 ohm impedance while the package 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 circuit board
shown is available from Hittite upon request.
List of Materials for Evaluation PCB 103393 [1]
* R2 - R6= 100 Ohm.
These resistors are optional
and may be used to enhance
decoupling of the RF path
from the control inputs.
Item Description
J1 - J2 PCB Mount SMA Connector
J3 - J8 DC Pin
R1 5k Ohm Resistor, 0402 Pkg.
R2 - R6 100 Ohm Resistor, 0402 Pkg.
C1 - C2 0402 Chip Capacitor, Select Value for Lowerst
Frequency
U1 HMC306MS10 / HMC306MS10E
Digital Attenuators
PCB [2] 103391 Evaluation PCB 1.5” x 1.5”
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
0.5 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.7 - 3.8 GHz
HMC306MS10 / 306MS10E
v06.0206
OBSOLETE
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.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
ATTENUATORS - SMT
5
5 - 65
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
Notes:
0.5 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.7 - 3.8 GHz
HMC306MS10 / 306MS10E
v06.0206
OBSOLETE
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.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
