HITTITE HMC290_06

HMC290 / 290E
v01.0605
ATTENUATORS - SMT
6
2 dB LSB GaAs MMIC 2-BIT DIGITAL
ATTENUATOR, 0.7 - 4.0 GHz
Typical Applications
Features
The HMC290 / HMC290E is ideal for:
2 dB LSB Steps to 6 dB
• Cellular
Single Positive Control Per BIT
• PCS, ISM, MMDS
+/-0.2 dB Typical Bit Error
• WLL Handset & BaseStation
Miniature SOT 26 Package: 9 mm2
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 smallest 2 - bit digital attenuator available.
Electrical Specifications,
TA = +25° C, Vdd = +3V to +5V & Vctl = 0/Vdd (Unless Otherwise Stated)
Parameter
Frequency
Insertion Loss
0.7 - 1.4 GHz
1.4 - 2.3 GHz
2.3 - 2.7 GHz
2.7 - 4.0 GHz
Attenuation Range
0.7 - 4.0 GHz
Return Loss (RF1 & RF2, All Atten. States)
0.7 - 2.7 GHz
2.7 - 4.0 GHz
Min.
16
15
Typical
Max.
Units
0.5
0.5
0.6
0.8
0.7
0.8
0.9
1.2
dB
dB
dB
dB
6
dB
20
18
dB
dB
Attenuation Accuracy: (Referenced to Insertion Loss)
2, 4 dB States
6 dB States
0.7 - 4.0 GHz
0.7 - 4.0 GHz
± 0.2 + 2% of Atten. Setting Max
± 0.3 + 2% of Atten. Setting Max
dB
dB
Input Power for 0.1 dB Compression
5V
3V
0.7 - 4.0 GHz
27
24
dBm
dBm
Input Third Order Intercept Point
(Two-tone Input Power = 0 dBm Each Tone)
5V
3V
0.7 - 4.0 GHz
52
50
dBm
dBm
0.7 - 4.0 GHz
400
420
ns
ns
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
6 - 40
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
HMC290 / 290E
v01.0605
2 dB LSB GaAs MMIC 2-BIT DIGITAL
ATTENUATOR, 0.7 - 4.0 GHz
Return Loss RF1, RF2
0
-0.25
-5
-0.5
-0.75
-1
+25 C
-40 C
+85 C
-1.25
-1.5
0.5
1
1.5
2
6
2 dB
4 dB
6 dB
-10
-15
-20
-25
2.5
3
3.5
-30
0.5
4
1
1.5
3
3.5
4
1
0
-1
0.75
-2
BIT ERROR (dB)
NORMALIZED ATTENUATION (dB)
2.5
Absolute Bit Error
vs. Attenuation State
Normalized Attenuation
-3
-4
-5
0.9 GHz
2.4 GHz
1.9 GHz
3.5 GHz
0.5
0.25
-6
2 dB
4 dB
6 dB
-7
-8
0.5
0
1
1.5
2
2.5
3
3.5
2
4
4
FREQUENCY (GHz)
6
ATTENUATION STATE (dB)
Relative Phase vs. Frequency
Absolute Bit Error vs. Frequency
20
RELATIVE PHASE (deg.)
1
2 dB
4 dB
6 dB
0.75
BIT ERROR (dB)
2
FREQUENCY (GHz)
FREQUENCY (GHz)
ATTENUATORS - SMT
0
RETURN LOSS (dB)
INSERTION LOSS (dB)
Insertion Loss
0.5
0.25
2 dB
4 dB
6 dB
15
10
5
0
-5
0
0.5
1
1.5
2
2.5
FREQUENCY (GHz)
3
3.5
4
-10
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
Note: All Data Typical Over Voltage (+3V to +5V) & Temperature (-40 to +85 deg. C.).
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
6 - 41
HMC290 / 290E
v01.0605
Truth Table
ATTENUATORS - SMT
6
2 dB LSB GaAs MMIC 2-BIT DIGITAL
ATTENUATOR, 0.7 - 4.0 GHz
Control & Bias Voltages
Control Voltage Input
V2
4 dB
V1
2 dB
Attenuation
Setting
RF1 - RF2
High
High
Reference I.L.
High
Low
2 dB
Low
High
4 dB
Low
Low
6 dB
Max. Atten.
State
Bias Condition
Low
0 to + 0.2V @ 20 uA Max
High
Vdd ± 0.2V @ 50 uA Max
Note: Vdd = +3V to 5V ± 0.2V
Any combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
Application Circuit
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 throught either PIN 3 or PIN 1.
6 - 42
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
HMC290 / 290E
v01.0605
2 dB LSB GaAs MMIC 2-BIT DIGITAL
ATTENUATOR, 0.7 - 4.0 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 - 4 GHz)
+28 dBm
6
ATTENUATORS - SMT
Control Voltage (V1, V2)
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
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
Package Body Material
Lead Finish
MSL Rating
HMC290
Low Stress Injection Molded Plastic
Sn/Pb Solder
MSL1
HMC290E
RoHS-compliant Low Stress Injection Molded Plastic
100% matte Sn
MSL1
Package Marking [3]
[1]
H290
XXXX
[2]
290E
XXXX
[1] Max peak reflow temperature of 235 °C
[2] Max peak reflow temperature of 260 °C
[3] 4-Digit lot number XXXX
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
6 - 43
HMC290 / 290E
v01.0605
2 dB LSB GaAs MMIC 2-BIT DIGITAL
ATTENUATOR, 0.7 - 4.0 GHz
Evaluation Circuit Board
ATTENUATORS - SMT
6
* 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
Item
Description
J1 - J2
PCB Mount SMA Connector
J3 - J6
DC Pin
R1
5k Ohm Resistor, 0402 Chip
R2, R3
100 Ohm Resistor, 0402 Chip
C1, C2
0402 Chip Capacitor, Select for Lowest
Frequency of Operation
U1
HMC290 / HMC290E Digital Attenuator
PCB [2]
103370 Evaluation PCB 1.5” x 1.5”
[1]
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 as shown is available from
Hittite Microwave Corporation upon request.
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
6 - 44
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
HMC290 / 290E
v01.0605
2 dB LSB GaAs MMIC 2-BIT DIGITAL
ATTENUATOR, 0.7 - 4.0 GHz
Notes:
ATTENUATORS - SMT
6
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
6 - 45