v00.0403
MICROWAVE CORPORATION
HMC467LP3
Features
2 dB LSB Steps to 6 dB
High IP3: +50 dBm
+/- 0.2 dB Typical Bit Error
Single Control Line Per Bit
Single +5V Supply
3 mm x 3 mm x 1 mm SMT Package
2 dB LSB GaAs MMIC 2-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 6.0 GHz
Typical Applications
The HMC467LP3 is ideal for:
9
ATTENUATORS - SMT
•
Cellular; UMTS/3G Infrastructure
•
Fixed Wireless & WLL
•
Microwave Radio & VSAT
•
Test Equipment
Functional Diagram
General Description
The HMC467LP3 is a broadband 2-bit GaAs IC
digital attenuator in a low cost leadless surface
mount package. Covering DC to 6.0 GHz, the
insertion loss is less than 0.7 dB typical. The
attenuator bit values are 2 (LSB) and 4 dB for a
total attenuation of 6 dB. Attenuation accuracy
is excellent at ± 0.2 dB typical step error with
an IIP3 of +50 dBm. Two control voltage inputs,
toggled between 0 and +5V, are used to select
each attenuation state. A single Vdd bias of +5V
is required.
Electrical Specifications,
T
A
= +25° C, With Vdd = +5V & Vctl = 0/+5V*
Parameter
Frequency
(GHz)
DC - 2.5 GHz
2.5 - 6.0 GHz
DC - 6.0 GHz
DC - 2.5 GHz
2.5 - 6.0 GHz
2 dB State
4, 6 dB States
DC - 6.0 GHz
0.25 - 6.0 GHz
0.25 - 6.0 GHz
DC - 6.0 GHz
135
155
ns
ns
Min.
Typ.
0.5
0.8
6
20
15
± 0.2 + 2% of Atten. Setting Max.
± 0.4 + 2% of Atten. Setting Max.
22
50
Max.
0.8
1.2
Units
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
Insertion Loss
Attenuation Range
Return Loss (RF1 & RF2, All Atten. States)
Attenuation Accuracy:
(Referenced to Insertion Loss)
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)
* Bypass capacitor connecting ACG1 & ACG2 to RF ground required per pin description herein.
9 - 98
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
v00.0403
MICROWAVE CORPORATION
HMC467LP3
2 dB LSB GaAs MMIC 2-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 6.0 GHz
GaAs MMIC SUB-HARMONICALLY
(Only Major States are Shown)
- 25 GHz
PUMPED MIXER 17
Insertion Loss
0
-0.5
INSERTION LOSS (dB)
RETURN LOSS (dB)
-1
-1.5
-2
+25 C
Return Loss RF1, RF2
0
-5
-10
-15
-20
-25
-30
IL
2 dB
4 dB
6 dB
9
-2.5
-3
0
0.5
1
1.5
+85 C
-40 C
2
2.5
3
3.5
4
4.5
5
5.5
6
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
FREQUENCY (GHz)
FREQUENCY (GHz)
Normalized Attenuation
(Only Major States are Shown)
0
NORMALIZED ATTENUATION (dB)
Bit Error vs. Attenuation State
1
0.8
80 MHz
500 MHz
1 GHz
2 GHz
3 GHz
4 GHz
5 GHz
6 GHz
-2
BIT ERROR (dB)
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
2
-4
-6
2 dB
4 dB
6 dB
-8
-10
FREQUENCY (GHz)
4
ATTENUATION STATE (dB)
6
Bit Error vs. Frequency
(Only Major States are Shown)
1
0.8
Relative Phase vs. Frequency
(Only Major States are Shown)
20
15
10
5
0
-5
-10
2 dB
4 dB
6 dB
BIT ERROR (dB)
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
FREQUENCY (GHz)
2 dB
4 dB
6 dB
RELATIVE PHASE (deg)
0.6
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
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 - 99
ATTENUATORS - SMT
v00.0403
MICROWAVE CORPORATION
HMC467LP3
2 dB LSB GaAs MMIC 2-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 6.0 GHz
Worst Case Step Error
Between Successive Attenuation States
1
0.8
STEP ERROR (dB)
9
ATTENUATORS - SMT
2 dB
4 dB
6 dB
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
FREQUENCY (GHz)
Bias Voltage & Current
Vdd Range= +5.0 Vdc ± 10%
Vdd
(Vdc)
+5.0
Idd (Typ.)
(mA)
0.7
Idd (Max.)
(mA)
1.2
Truth Table
Control Voltage Input
V1
4 dB
High
High
Low
V2
2 dB
High
Low
High
Low
Attenuation Setting
RF1 - RF2
Reference I.L.
2 dB
4 dB
6 dB
Max. Atten.
TTL/CMOS Control Voltages
State
Low
High
Bias Condition
0 to 0.8 Vdc @ -5 uA Typ.
+2.0 to +5.0 Vdc @ 40 uA Typ.
Low
Any combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
9 - 100
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
v00.0403
MICROWAVE CORPORATION
HMC467LP3
2 dB LSB GaAs MMIC 2-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 6.0 GHz
Absolute Maximum Ratings
Control Voltage (V1, V2)
Bias Voltage (Vdd)
Staorage Temperature
Operating Temperature
RF Input Power
-0.5 Vdc to Vdd +1 Vdc
+7.0 Vdc
-65 to +150 °C
-40 to +85 °C
+30 dBm
9
Outline Drawing
NOTES:
1. MATERIAL PACKAGE BODY: LOW STRESS INJECTION MOLDED
PLASTIC SILICA AND SILICON IMPREGNATED.
2. LEAD AND GROUND PADDLE MATERIAL: COPPER ALLOY
3. LEAD AND GROUND PADDLE PLATING: Sn/Pb SOLDER
4. DIMENSIONS ARE IN INCHES [MILLIMETERS].
5. LEAD SPACING TOLERANCE IS NON-CUMULATIVE
6. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM.
PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM.
7. PACKAGE WARP SHALL NOT EXCEED 0.05mm.
8. ALL GROUND LEADS AND GROUND PADDLE 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 - 10
ATTENUATORS - SMT
v00.0403
MICROWAVE CORPORATION
HMC467LP3
2 dB LSB GaAs MMIC 2-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 6.0 GHz
Pin Descriptions
Pin Number
Function
N/C
Description
These pins should be connected to PCB
RF ground to maximize performance.
Supply Voltage
Interface Schematic
9
ATTENUATORS - SMT
1, 2, 4, 9 - 12,
14, 15
3
Vdd
5, 8
V2, V1
See truth table and control voltage table.
6, 7
ACG1, ACG2
External capacitor to ground is required.
Select value for lowest frequency of operation.
Place capacitor as close to pins as possible.
13, 16
RF2, RF1
These pins are DC coupled and matched to 50 Ohm. Blocking
capacitors are required.
GND
Package bottom has an exposed metal paddle
that must be connected to RF/DC ground.
Application Circuit
9 - 102
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
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