HMC540LP3E [HITTITE]
1 dB LSB GaAs MMIC 4-BIT DIG POSITIVE CONTROL ATTENUATOR, DC - 5.5 GHz; 1分贝LSB的GaAs MMIC 4位DIG阳性对照衰减器， DC - 5.5 GHz的
| 型号： | HMC540LP3E |
| 厂家： | 
HITTITE MICROWAVE CORPORATION |
| 描述： | 1 dB LSB GaAs MMIC 4-BIT DIG POSITIVE CONTROL ATTENUATOR, DC - 5.5 GHz |
| 文件： | 总6页 (文件大小：328K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HMC540LP3 / 540LP3E
v00.0605
1 dB LSB GaAs MMIC 4-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 5.5 GHz
Typical Applications
Features
The HMC540LP3 / HMC540LP3E is ideal for both RF
and IF applications:
1 dB LSB Steps to 15 dB
+/- 0.2 dB Typical Step Error
Low Insertion Loss: 1.0 dB
High IP3: +50 dBm
6
• Cellular Infrastructure
• ISM, MMDS, WLAN, WiMAX, WiBro
• Microwave Radio & VSAT
Single Control Line Per Bit
TTL/CMOS Compatible Control
Single +5V Supply
• Test Equipment and Sensors
Functional Diagram
3x3 mm SMT Package
General Discription
The HMC540LP3 & HMC540LP3E are broadband
4-bit GaAs IC digital attenuators in low cost leadless
surface mount packages. This single positive control
line per bit digital attenuator utilizes off chip AC ground
capacitors for near DC operation, making it suitable for
a wide variety of RF and IF applications. Covering DC
to 5.5 GHz, the insertion loss is less than 1.0 dB typical.
The attenuator bit values are 1 (LSB), 2, 4 and 8 dB for
a total attenuation of 15 dB. Attenuation accuracy is
excellent at 0.2 dB typical step error. The attenuator
also features a IIP3 of +50 dBm. Four 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 - 2.0 GHz
2.0 - 3.0 GHz
3.0 - 4.0 GHz
4.0 -5.5 GHz
0.8
1.0
1.3
2.2
1.1
1.3
1.6
2.6
dB
dB
dB
dB
Insertion Loss
Attenuation Range
DC - 5.5 GHz
15
dB
DC - 3.5 GHz
3.5 - 5.5 GHz
20
15
dB
dB
Return Loss (RF1 & RF2, All Atten. States)
DC - 1.0 GHz
1.0 - 4.0 GHz
4.0 - 5.0 GHz
5.0 - 5.5 GHz
(0.2 + 2% of Atten. Setting) Max.
(0.2 + 3% of Atten. Setting) Max.
(0.3 + 5% of Atten. Setting) Max.
(0.4 + 8% of Atten. Setting) Max.
dB
dB
dB
dB
Attenuation Accuracy:
(Referenced to Insertion Loss)
All States
Input Power for 0.1 dB Compression
0.1 - 5.5 GHz
0.1 - 5.5 GHz
27
dBm
Input Third Order Intercept Point
(Two-Tone Input Power= 0 dBm Each Tone)
REF - 4 dB States
5 - 15 dB States
50
45
dBm
dBm
Switching Characteristics
DC -5.5 GHz
tRISE, tFALL (10/90% RF)
95
100
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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HMC540LP3 / 540LP3E
v00.0605
1 dB LSB GaAs MMIC 4-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 5.5 GHz
Return Loss RF1, RF2
(Only Major States are Shown)
Insertion Loss
0
0
-5
6
-0.5
-1
-10
I.L.dB 1 dB 2 dB
4 dB 8 dB 15 dB
-15
-20
-25
-30
-35
-40
-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
5
5.5
6
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
16
6
FREQUENCY (GHz)
FREQUENCY (GHz)
Normalized Attenuation
(Only Major States are Shown)
Bit Error vs. Attenuation State
0
2
1.5
-4
5.5 GHz
5 GHz
4 GHz
1
0.5
0
-8
-12
-16
-20
-0.5
1 GHz
100 MHz
-1
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
0
4
8
12
FREQUENCY (GHz)
ATTENUATION STATE (dB)
Bit Error vs. Frequency
(Only Major States are Shown)
Relative Phase vs. Frequency
(Only Major States are Shown)
1.5
40
30
15 dB
1
20
8 dB
10
0
0.5
0
1-4 dB
-10
-20
-30
-40
1-4 dB
-0.5
-1
15 dB
8 dB
0
0.5
1
1.5
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
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
6 - 171
HMC540LP3 / 540LP3E
v00.0605
1 dB LSB GaAs MMIC 4-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 5.5 GHz
Worst Case Step Error
Between Successive Attenuation States
0.4
0.3
0.2
0.1
0
6
-0.1
-0.2
-0.3
-0.4
-0.5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
FREQUENCY (GHz)
Bias Voltage & Current
Truth Table
Vdd = +5.0 Vdc 10%
Control Voltage Input
Attenuation
State
RF1 - RF2
Vdd
(VDC)
Idd (Typ.)
(mA)
V1
8 dB
V2
V3
V4
1 dB
4 dB
2 dB
+4.5
+5.0
+5.5
3.0
3.2
3.4
Reference
I.L.
High
High
High
High
High
High
High
Low
Low
High
High
Low
High
Low
High
Low
High
High
Low
Low
High
High
High
Low
1 dB
2 dB
4 dB
8 dB
15 dB
Control Voltage
State
Bias Condition
0 to +0.8V @ -5 uA Typ.
+2.0 to + 5.0 Vdc @ 40 uA Typ.
Any combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
Low
High
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
6 - 172
HMC540LP3 / 540LP3E
v00.0605
1 dB LSB GaAs MMIC 4-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 5.5 GHz
Absolute Maximum Ratings
RF Input Power (DC - 5.5 GHz)
Control Voltage Range (V1 to V4)
Bias Voltage (Vdd)
+29 dBm (T = +85 °C)
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
6
-1V to Vdd +1V
+7.0 Vdc
150 °C
Channel Temperature
Continuous Pdiss (T = 85 °C)
(derate 11.7 mW/°C above 85 °C)
0.769 W
Thermal Resistance
Storage Temperature
Operating Temperature
85 °C/W
-65 to +150 °C
-40 to +85 °C
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]
540
XXXX
HMC540LP3
Low Stress Injection Molded Plastic
Sn/Pb Solder
540
XXXX
MSL1 [2]
HMC540LP3E
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
6 - 173
HMC540LP3 / 540LP3E
v00.0605
1 dB LSB GaAs MMIC 4-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 5.5 GHz
Pin Descriptions
Pin Number
Function
Vdd
Description
Interface Schematic
6
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, 7, 9, 10, 12
External capacitor to ground is required. Select value for
lowest frequency of operation. Place capacitor as close
to pins as possible.
4 - 6, 8
ACG1 - ACG4
13 - 16
V1 - V4
See truth table and control voltage table.
Package bottom has an exposed metal paddle that must be
connected to RF/DC Ground.
GND
Application Circuit
Recommended Component Values
C1 - C3
C4, C5
1,000 pF 10%
330 pF 10%
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 - 174
HMC540LP3 / 540LP3E
v00.0605
1 dB LSB GaAs MMIC 4-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 5.5 GHz
Evaluation PCB
6
List of Materials for Evaluation PCB 111315 [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 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 shown is avail-
able from Hittite upon request.
Item
Description
J1 - J2
J3 - J8
C1 - C3
C4, C5
PCB Mount SMA Connector
DC Pin
1000 pF Capacitor, 0402 Pkg.
330 pF Capacitor, 0402 Pkg.
HMC540LP3 / HMC540LP3E
Digital Attenuator
U1
[2]
PCB
111291 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
6 - 175
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HITTITE
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