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PDF HMC539LP3E Data sheet ( Hoja de datos )
| Número de pieza | HMC539LP3E | |
| Descripción | 0.25 dB LSB GaAs MMIC 5-BIT DIGITAL POSITIVE CONTROL ATTENUATOR - DC - 4.0 GHz | |
| Fabricantes | Hittite Microwave | |
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v00.0605
HMC539LP3 / 539LP3E
www.DataSheet4U.com
0.25 dB LSB GaAs MMIC 5-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 4.0 GHz
Typical Applications
Features
6 The HMC539LP3 / HMC539LP3E is ideal for both RF
and IF applications:
0.25 dB LSB Steps to 7.75 dB
+/- 0.05 dB Typical Step Error
• Cellular Infrastructure
Low Insertion Loss: 0.7 dB
• ISM, MMDS, WLAN, WiMAX, WiBro
High IP3: +50 dBm
• Microwave Radio & VSAT
Single Control Line Per Bit
• Test Equipment and Sensors
TTL/CMOS Compatible Control
Functional Diagram
Single +5V Supply
3x3 mm SMT Package
General Discription
The HMC539LP3 & HMC539LP3E are broadband
5-bit GaAs IC digital attenuators in low cost lead-
less surface mount packages. This single positive
control line per bit digital attenuator utilizes an off
chip AC ground capacitor for near DC operation,
making it suitable for a wide variety of RF and IF
applications. Covering DC to 4.0 GHz, the insertion
loss is less than 0.7 dB typical. The attenuator bit
values are 0.25 (LSB), 0.5, 1, 2, and 4 dB for a total
attenuation of 7.75 dB. Attenuation accuracy is excel-
lent at ± 0.05 dB typical step error. The attenuator also
features a high IIP3 of +50 dBm. Five TTL/CMOS
control inputs are used to select each attenuation
state. A single Vdd bias of +5V is required.
Electrical Specifications,
TA = +25° C, With Vdd = +5V & Vctl = 0/+5V (Unless Otherwise Noted)
Parameter
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)
Frequency (GHz)
DC - 1.5 GHz
1.5 - 3.0 GHz
3.0 - 4.0 GHz
DC - 4.0 GHz
DC - 3.0 GHz
3.0 - 4.0 GHz
All States
DC - 3.0 GHz
3.0 - 4.0 GHz
0.1 - 4.0 GHz
Min. Typ. Max.
0.7 1.0
1.0 1.3
1.3 1.7
7.75
25
20
± (0.2 + 2% of Atten. Setting) Max.
± (0.2 + 4% of Atten. Setting) Max.
28
0.1 - 4.0 GHz
50
DC - 4.0 GHz
48
52
Units
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
ns
ns
6 - 164
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
1 page  
v00.0605
HMC539LP3 / 539LP3E
www.DataSheet4U.com
0.25 dB LSB GaAs MMIC 5-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 4.0 GHz
6
Pin Descriptions
Pin Number
Function
1 Vdd
2, 11
RF1, RF2
3, 9, 10
4-8
N/C
ACG1 - ACG5
Description
Supply Voltage.
This pin is DC coupled and matched to 50 Ohm.
Blocking capacitors are required.
Select value based on lowest frequency of operation.
These pins should be connected to PCB RF ground to
maximize performance.
External capacitor to ground is required. Select value for
lowest frequency of operation. Place capacitor as close
to pins as possible.
Interface Schematic
12 - 16
V1 - V5
See truth table and control voltage table.
GND
Package bottom has an exposed metal paddle that must be
connected to RF Ground.
Application Circuit
Recommended Component Values
C1, C2
100 pF ± 10%
C3 1,000 pF ± 10%
C4 330 pF ± 10%
R1 - R5
100 Ohm ± 10%
6 - 168
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
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet HMC539LP3E.PDF ] | |
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| HMC539LP3E | 0.25 dB LSB GaAs MMIC 5-BIT DIGITAL POSITIVE CONTROL ATTENUATOR - DC - 4.0 GHz | Hittite Microwave |
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