HMC539LP3TR [HITTITE]
Variable Attenuator;
| 型号： | HMC539LP3TR |
| 厂家： | 
HITTITE MICROWAVE CORPORATION |
| 描述： | Variable Attenuator 衰减器 |
| 文件： | 总6页 (文件大小：235K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HMC539LP3 / 539LP3E
v00.0605
0.25 dB LSB GaAs MMIC 5-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 4 GHz
5
Typical Applications
The HMC539LP3 / HMC539LP3E is ideal for both RF
and IF applications:
Features
0.25 dB LSB Steps to 7.75 dB
0.05 dB Typical Step Error
Low Insertion Loss: 0.7 dB
High IP3: +50 dBm
• Cellular Infrastructure
• ISM, MMDS, WLAN, WiMAX, WiBro
• Microwave Radio & VSAT
• Test Equipment and Sensors
Single Control Line Per Bit
TTL/CMOS Compatible Control
Single +5V Supply
Functional Diagram
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 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 attenu-
ation of 7.75 dB. Attenuation accuracy is excellent
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
Frequency (GHz)
Min.
Typ.
Max.
Units
DC - 1.5 GHz
1.5 - 3.0 GHz
3.0 - 4.0 GHz
0.7
1.0
1.3
1.0
1.3
1.7
dB
dB
dB
Insertion Loss
Attenuation Range
DC - 4 GHz
7.75
dB
DC - 3 GHz
3.0 - 4.0 GHz
25
20
dB
dB
Return Loss (RF1 & RF2, All Atten. States)
Attenuation Accuracy:
(Referenced to Insertion Loss)
DC - 3 GHz
3.0 - 4.0 GHz
(0.2 + 2% of Atten. Setting) Max.
(0.2 + 4% of Atten. Setting) Max.
dB
dB
All States
Input Power for 0.1 dB Compression
0.1 - 4.0 GHz
0.1 - 4.0 GHz
28
50
dBm
dBm
Input Third Order Intercept Point
(Two-Tone Input Power= 0 dBm Each Tone)
Switching Characteristics
DC - 4 GHz
tRISE, tFALL (10/90% RF)
48
52
ns
ns
tON, tOFF (50% CTL to 10/90% RF)
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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HMC539LP3 / 539LP3E
v00.0605
0.25 dB LSB GaAs MMIC 5-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 4 GHz
Return Loss RF1, RF2
5
(Only Major States are Shown)
Insertion Loss
0
0
-0.5
-1
-9
4 dB 7.75 dB
I.L.dB
0.25 dB 0.5 dB 2 dB
-18
-27
-36
-45
1 dB
-1.5
-2
+25 C
+85 C
-40 C
-2.5
-3
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
FREQUENCY (GHz)
FREQUENCY (GHz)
Normalized Attenuation
(Only Major States are Shown)
Bit Error vs. Attenuation State
0
0.5
-2
3 GHz
4 GHz
40 MHz
0.25
0
-4
-6
100 MHz
1 GHz 500 MHz
2 GHz
-0.25
-0.5
-8
-10
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
0
1
2
3
4
5
6
7
8
FREQUENCY (GHz)
ATTENUATION STATE (dB)
Bit Error vs. Frequency
(Only Major States are Shown)
Relative Phase vs. Frequency
(Only Major States are Shown)
0.35
0.25
20
15
7.75 dB
10
4 dB
0.15
0.5 dB
2 dB
5
0
0.25 dB
0.05
-5
-0.05
-0.15
-10
-15
-20
0.25-1 dB
2 dB
4 dB
1 dB
7.75 dB
0.5
-0.25
0
1
1.5
2
2.5
3
3.5
4
4.5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
FREQUENCY (GHz)
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
5 - 165
HMC539LP3 / 539LP3E
v00.0605
0.25 dB LSB GaAs MMIC 5-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 4 GHz
Worst Case Step Error
Between Successive Attenuation States
5
0.25
0.15
0.05
-0.05
-0.15
-0.25
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
FREQUENCY (GHz)
Bias Voltage & Current
Truth Table
Control Voltage Input
Vdd = +5.0 Vdc ꢀ0%
Attenuation
State
RFꢀ - RF2
Vꢀ
4 dB
V2
V3
V4
V5
0.25 dB
Vdd
(VDC)
Idd (Typ.)
(mA)
2 dB
ꢀ dB
0.5 dB
Reference
I.L.
+4.5
+5.0
+5.5
3.3
3.5
3.7
High
High
High
High
High
High
High
High
High
Low
Low
High
High
High
Low
High
Low
High
High
Low
High
High
Low
High
Low
High
High
High
Low
Low
High
High
High
High
Low
0.25 dB
0.5 dB
ꢀ dB
Control Voltage
2 dB
State
Bias Condition
0 to +0.8V @ -5 uA Typ.
+2.0 to + 5.0 Vdc @ 30 uA Typ.
4 dB
Low
7.75 dB
High
Any combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
Note: Vdd = +5V
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 - 166
HMC539LP3 / 539LP3E
v00.0605
0.25 dB LSB GaAs MMIC 5-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 4 GHz
5
Absolute Maximum Ratings
RF Input Power (DC - 4 GHz)
Control Voltage Range (V1 to V5)
Bias Voltage (Vdd)
+29 dBm (T = +85 °C)
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
-1V to Vdd +1V
+7.0 Vdc
150 °C
Channel Temperature
Continuous Pdiss (T = 85 °C)
(derate 12.0 mW/°C above 85 °C)
0.781 W
Thermal Resistance
Storage Temperature
Operating Temperature
ESD Sensitivity (HBM)
83 °C/W
-65 to +150 °C
-40 to +85 °C
Class 1A
Outline Drawing
NOTES:
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS]
3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE
4. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM.
PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM.
5. PACKAGE WARP SHALL NOT EXCEED 0.05mm.
6. ALL GROUND LEADS AND GROUND PADDLE MUST BE
SOLDERED TO PCB RF GROUND.
7. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED
LAND PATTERN.
Package Information
Part Number
Package Body Material
Lead Finish
MSL Rating
MSL1 [1]
Package Marking [3]
539
XXXX
HMC539LP3
Low Stress Injection Molded Plastic
Sn/Pb Solder
539
XXXX
MSL1 [2]
HMC539LP3E
RoHS-compliant Low Stress Injection Molded Plastic
100% matte Sn
[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
5 - 167
HMC539LP3 / 539LP3E
v00.0605
0.25 dB LSB GaAs MMIC 5-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 4 GHz
5
Pin Descriptions
Pin Number
Function
Vdd
Description
Interface Schematic
1
Supply Voltage.
This pin is DC coupled and matched to 50 Ohm.
Blocking capacitors are required.
Select value based on lowest frequency of operation.
2, 11
RF1, RF2
N/C
These pins should be connected to PCB RF ground to
maximize performance.
3, 9, 10
External capacitor to ground is required. Select value for
lowest frequency of operation. Place capacitor as close
to pins as possible.
4 - 8
ACG1 - ACG5
12 - 16
V1 - V5
See truth table and control voltage table.
Package bottom has an exposed metal paddle that must be
connected to RF Ground.
GND
Application Circuit
Recommended Component Values
C1, C2
C3
100 pF 10%
1,000 pF 10%
330 pF 10%
100 Ohm 10%
C4
R1 - R5
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 - 168
HMC539LP3 / 539LP3E
v00.0605
0.25 dB LSB GaAs MMIC 5-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 4 GHz
5
Evaluation PCB
List of Materials for Evaluation PCB 110078 [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 and exposed paddle should be con-
nected 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.
Item
Description
J1 - J2
J3 - J9
C1, C2
C3
PCB Mount SMA Connector
DC Pin
100 pF Capacitor, 0402 Pkg.
1000 pF Capacitor, 0402 Pkg.
330 pF Capacitor, 0402 Pkg.
100 Ohm Resistor 0402
C4
R1 - R5
HMC539LP3 / HMC539LP3E
Digital Attenuator
U1
[2]
PCB
110076 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
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 - 169
相关型号：
HMC540LP3TR
Variable Attenuator, 0MHz Min, 5500MHz Max, 2.6dB Insertion Loss-Max, 3 X 3 MM, LEADLESS, PLASTIC, SMT, 16 PIN
HITTITE
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