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HMC467LP3
/
467LP3E
v01.0705
2 dB LSB GaAs MMIC 2-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 6 GHz
5
ATTENUATORS - SMT
Typical Applications
The HMC467LP3 / HMC467LP3E is ideal for:
• Cellular; UMTS/3G Infrastructure
• Fixed Wireless & WLL
• Microwave Radio & VSAT
• Test Equipment
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
Functional Diagram
Electrical Specifi cations,
T
A
= +25° C, With Vdd = +5V & Vctl = 0/+5V*
B
Parameter
SO
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Frequency
(GHz)
DC - 2.5 GHz
2.5 - 6.0 GHz
DC - 6 GHz
DC - 2.5 GHz
2.5 - 6.0 GHz
2 dB State
4, 6 dB States
DC - 6 GHz
0.25 - 6.0 GHz
0.25 - 6.0 GHz
DC - 6 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.
5 - 132
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
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3x3 mm SMT Package
General Description
The HMC467LP3 & HMC467LP3E are broadband
2-bit GaAs IC digital attenuators in low cost leadless
surface mount packages. 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.
HMC467LP3
/
467LP3E
v01.0705
2 dB LSB GaAs MMIC 2-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 6 GHz
Return Loss RF1, RF2
Insertion Loss
0
-0.5
INSERTION LOSS (dB)
-1
-1.5
-2
-2.5
-3
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
FREQUENCY (GHz)
+25 C
+85 C
-40 C
(Only Major States are Shown)
0
-5
RETURN LOSS (dB)
-10
-15
-20
-25
-30
IL
2 dB
4 dB
6 dB
5
ATTENUATORS - SMT
5 - 133
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5.5
6
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
FREQUENCY (GHz)
5.5
6
Normalized Attenuation
(Only Major States are Shown)
0
NORMALIZED ATTENUATION (dB)
Bit Error vs. Attenuation State
1
0.8
0.6
0.4
0.2
-2
SO
2 dB
4 dB
6 dB
-4
BIT ERROR (dB)
0
-0.2
-0.4
-0.6
-0.8
-1
2
4
ATTENUATION STATE (dB)
6
80 MHz
500 MHz
1 GHz
2 GHz
3 GHz
4 GHz
5 GHz
6 GHz
-6
-8
-10
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
FREQUENCY (GHz)
Bit Error vs. Frequency
B
2 dB
4 dB
6 dB
Relative Phase vs. Frequency
(Only Major States are Shown)
20
15
RELATIVE PHASE (deg)
10
5
0
-5
-10
2 dB
4 dB
6 dB
(Only Major States are Shown)
BIT ERROR (dB)
O
0.6
0.2
-0.2
-0.6
-1
0
1
2
3
4
5
6
FREQUENCY (GHz)
1
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:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
HMC467LP3
/
467LP3E
v01.0705
2 dB LSB GaAs MMIC 2-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 6 GHz
Truth Table
Control Voltage Input
V1
4 dB
High
High
V2
2 dB
High
Low
High
Low
Attenuation Setting
RF1 - RF2
Reference I.L.
2 dB
4 dB
6 dB
Max. Atten.
5
ATTENUATORS - SMT
Worst Case Step Error
Between Successive Attenuation States
1
2 dB
4 dB
6 dB
0.6
STEP ERROR (dB)
0.2
-0.6
-1
0
1
2
3
4
5
FREQUENCY (GHz)
SO
5 - 134
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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
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Low
6
-0.2
Low
Any combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
Bias Voltage & Current
Vdd
(Vdc)
+5.0
Idd (Typ.)
(mA)
0.7
Vdd Range= +5.0 Vdc ± 10%
Idd (Max.)
(mA)
1.2
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.
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