HITTITE HMC306MS10

MICROWAVE CORPORATION
HMC306MS10
v03.0403
0.5 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.7 - 3.8 GHz
ATTENUATORS - SMT
9
Typical Applications
Features
The HMC306MS10 is ideal for:
0.5 dB LSB Steps to 15.5 dB
• Cellular, PCS, & 3G
Single Positive Control Per Bit
• ISM, MMDS
± 0.3 dB Typical Bit Error
• Wireless Local Loop
Miniature 15 mm2 Package: MSOP10
Functional Diagram
General Description
The HMC306MS10 is a broadband 5-bit positive
control GaAs IC digital attenuator in a 10 lead
MSOP surface mount plastic package. Covering
0.7 to 3.8 GHz, the insertion loss is typically less
than 1.5 to 2.3 dB. The attenuator 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 ±
0.25 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 at
less than 50 uA each. A single Vdd bias of +3 to
+5V applied through an external 5K Ohm resistor
is required. The HMC306MS10 occupies less than
14.8 mm².
Electrical Specifications,
TA = +25° C, Vdd= +3V to +5V & VCTL= 0/Vdd (Unless Otherwise Stated)
Parameter
Frequency (GHz)
Insertion Loss
Min.
0.7 - 1.4
1.4 - 2.3
2.3 - 2.7
2.7 - 3.8
Attenuation Range
Return Loss (RF1 & RF2, All Atten. States)
Max.
Units
1.3
1.5
1.8
2.3
1.6
2.0
2.5
2.7
dB
dB
dB
dB
15.5
dB
21
18
16
13
dB
dB
dB
dB
0.7 - 1.4
1.4 - 2.3
2.3 - 2.7
2.7 - 3.8
2.7 - 3.8
± 0.30 + 5% of Atten. Setting Max.
± 0.25 + 3% of Atten. Setting Max.
± 0.30 + 4% of Atten. Setting Max.
± 0.40 + 4% of Atten. Setting Max.
± 0.50 + 5% of Atten. Setting Max.
dB
dB
dB
dB
dB
0.7 - 1.4
1.4 - 2.3
2.3 - 2.7
2.7 - 3.8
Attenuation Accuracy: (Referenced to Insertion Loss)
All Attenuation States
All Attenuation States
All Attenuation States
0.5 - 13.0 dB States
13.5 - 15.5 dB States
Typical
15
14
13
10
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
0.7 - 3.8
560
600
ns
ns
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
9 - 44
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
HMC306MS10
v03.0403
MICROWAVE CORPORATION
0.5 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.7 - 3.8 GHz
Return Loss RF1, RF2
Insertion Loss
(Only Major States are Shown)
0
0
9
-5
+25 C
RETURN LOSS (dB)
INSERTION LOSS (dB)
-40 C
-1
-1.5
-2
-2.5
+85 C
-10
2 dB
4 dB
0.5 dB
1 dB
15.5 dB
-15
-20
-3
-25
-3.5
-4
0.5
1
1.5
2
2.5
3
3.5
-30
0.5
4
1
1.5
FREQUENCY (GHz)
8 dB
2
2.5
3
3.5
4
FREQUENCY (GHz)
Normalized Attenuation
Absolute Bit Error vs. Attenuation State
(Only Major States are Shown)
1.5
1.2
-4
2 dB
-6
0.5 dB
BIT ERROR (dB)
NORMALIZED ATTENUATION (dB)
0
-2
1 dB
4 dB
-8
-10
15.5 dB
-12
8 dB
-14
3.5 GHz
0.9
2.4 GHz
0.9 GHz
0.6
1.9 GHz
0.3
-16
-18
0.5
1
1.5
2
2.5
3
3.5
0
0.5
4
2
3.5
FREQUENCY (GHz)
5
6.5
8
9.5
11
12.5
Relative Phase vs. Frequency
(Only Major States are Shown)
(Only Major States are Shown)
1.5
60
1.2
40
RELATIVE PHASE (deg.)
15.5 dB
8 dB
0.9
0.5, 1, 2 dB
4 dB
15.5 dB
0.6
0.3
1
1.5
2
2.5
FREQUENCY (GHz)
15.5
8 dB
20
0
4 dB
-20
0.5, 1 dB
0
0.5
14
ATTENUATION STATE (dB)
Absolute Bit Error vs. Frequency
BIT ERROR (dB)
ATTENUATORS - SMT
-0.5
3
3.5
4
-40
0.5
1
1.5
2
2.5
2 dB
3
3.5
4
FREQUENCY (GHz)
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
9 - 45
MICROWAVE CORPORATION
HMC306MS10
v03.0403
0.5 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.7 - 3.8 GHz
Truth Table
Control & Bias Voltages
Control Voltage Input
9
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.
State
Bias Condition
Low
0 to +0.2V @ 20 µA Max.
High
Vdd ± 0.2V @ 20 µA Max.
Note: Vdd = +3V to 5V ± 0.2V
ATTENUATORS - SMT
0.00.20.2
Any combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
Application Circuit
Note:
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 6 or
Pin 10.
9 - 46
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
MICROWAVE CORPORATION
HMC306MS10
v03.0403
0.5 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.7 - 3.8 GHz
Absolute Maximum Ratings
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
9
ATTENUATORS - SMT
Control Voltage (V1 - V5)
Outline Drawing
NOTES:
1. PACKAGE BODY MATERIAL: LOW STRESS INJECTION MOLDED
PLASTIC SILICA AND SILICON IMPREGNATED.
2. LEADFRAME MATERIAL: COPPER ALLOY
3. LEADFRAME PLATING: Sn/Pb SOLDER
4. DIMENSIONS ARE IN INCHES [MILLIMETERS].
5. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE.
6. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE.
7. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND.
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
9 - 47
MICROWAVE CORPORATION
v03.0403
HMC306MS10
0.5 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.7 - 3.8 GHz
Evaluation Circuit Board
ATTENUATORS - SMT
9
* R2 - R6= 100 Ohm.
These resistors are optional
and may be used to enhance
decoupling of the RF path
from the control inputs.
The circuit board used in the final 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 Material
Item
Description
J1 - J2
PC 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 Digital Attenuator
PCB*
103391 Evaluation PCB 1.5” x 1.5”
*Circuit Board Material: Rogers 4350
9 - 48
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
MICROWAVE CORPORATION
v03.0403
HMC306MS10
0.5 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.7 - 3.8 GHz
Notes:
ATTENUATORS - SMT
9
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
9 - 49