HMC346LP3E [HITTITE]
GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, DC - 14 GHz; 砷化镓MMIC压控衰减器， DC - 14 GHz的
| 型号： | HMC346LP3E |
| 厂家： | 
HITTITE MICROWAVE CORPORATION |
| 描述： | GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, DC - 14 GHz |
| 文件： | 总6页 (文件大小：251K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HMC346LP3 / 346LP3E
v05.1008
GaAs MMIC VOLTAGE-VARIABLE
ATTENUATOR, DC - 14 GHz
5
Typical Applications
Features
The HMC346LP3 / HMC346LP3E is ideal for:
• Basestation Infrastructure
Wide Bandwidth: DC - 14 GHz
Low Phase Shift vs. Attenuation
30 dB Attenuation Range
• Fiber Optics & Broadband Telecom
• Microwave Radio & VSAT
Simplified Voltage Control
3 x 3 x 1 mm SMT Package
• Military Radios, Radar, & ECM
• Test Instrumentation
Functional Diagram
General Description
The HMC346LP3 & HMC346LP3E are pabsorp-
tive Voltage Variable Attenuators (VVA) in low cost
leadless surface mount plastic packages operating
from DC - 14 GHz. It features an on-chip reference
attenuator for use with an external op-amp to provide
simple single voltage attenuation control, 0 to -3V.
The device is ideal in designs where an analog DC
control signal must control RF signal levels over a 30
dB amplitude range. This VVA is an excellent alterna-
tive to the HMC121C8.
Electrical Specifications, TA = +25° C, 50 ohm system
Parameter
Min
Typical
Max
Units
DC - 10 GHz
DC - 14 GHz
1.7
2.8
2.2
3.3
dB
dB
Insertion Loss
DC - 10 GHz
27
22
30
27
dB
dB
Attenuation Range
DC - 14 GHz
Return Loss
DC - 14 GHz
5
10
dB
tRISE, tFALL (10/90% RF):
tON, tOFF (50% CTL to 10/90% RF):
2
8
ns
ns
Switching Characteristics
Min. Atten:
Atten. >2 dB:
+8
-4
dBm
dBm
Input Power for 0.25 dB Compression (0.5 - 8 GHz)
Input Third Order Intercept (0.5 - 8 GHz)
(Two-tone Input Power = -8 dBm Each Tone)
Min. Atten:
Atten. >2 dB:
+25
+10
dBm
dBm
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 - 96
HMC346LP3 / 346LP3E
v05.1008
GaAs MMIC VOLTAGE-VARIABLE
ATTENUATOR, DC - 14 GHz
5
Relative Attenuation
Insertion Loss vs. Temperature
0
-1
-2
-3
-4
0
-10
-20
-30
-40
+25 C
-40 C
+85 C
0
2
4
6
8
10
12
12
12
14
14
14
16
16
16
0
2
4
6
8
10
12
14
16
30
16
FREQUENCY (GHz)
FREQUENCY (GHz)
Relative Attenuation vs.
Control Voltage @ 10 GHz
Return Loss vs. Attenuation
0
0
-5
-10
-15
-20
V1
V2
-0.5
-1
-1.5
-2
-25
-30
MIN
5 dB
-2.5
-3
MAX
-35
0
5
10
15
20
25
0
2
4
6
8
10
RELATIVE ATTENUATION (dB)
FREQUENCY (GHz)
Relative Phase
Input IP3 vs. Attenuation*
180
30
5 dB
10 dB
15 dB
20 dB
25 dB
30 dB
max
150
120
90
60
30
0
25
20
15
10
0 dB
3 dB
6 dB
5
0
10 dB
0
2
4
6
8
10
0
2
4
6
8
10
12
14
FREQUENCY (GHz)
FREQUENCY (GHz)
*Two-tone input power = -8 dBm each tone, 1 MHz spacing.
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 - 97
HMC346LP3 / 346LP3E
v05.1008
GaAs MMIC VOLTAGE-VARIABLE
ATTENUATOR, DC - 14 GHz
Second Harmonic
vs. Attenuation, Pin = -8 dBm
5
Input IP2 vs. Attenuation*
70
80
60
50
40
30
70
60
50
40
0 dB
0 dB
3 dB
6 dB
3 dB
6 dB
10 dB
10 dB
20
10
30
20
0
2
4
6
8
10
12
14
16
0
2
4
6
8
10
12
14
16
FREQUENCY (GHz)
FREQUENCY (GHz)
0.25 dB Compression vs. Attenuation
1 dB Compression vs. Attenuation
15
20
10
15
10
5
0 dB (REF)
6 dB
5
0
0 dB (REF)
6 dB
-5
0
-10
-5
0
2
4
6
8
10
12
14
16
0
2
4
6
8
10
12
14
16
FREQUENCY (GHz)
FREQUENCY (GHz)
*Two-tone input power = -8 dBm each tone, 1 MHz spacing.
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 - 98
HMC346LP3 / 346LP3E
v05.1008
GaAs MMIC VOLTAGE-VARIABLE
ATTENUATOR, DC - 14 GHz
5
Absolute Maximum Ratings
RF Input Power
+18 dBm
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Control Voltage Range
Storage Temperature
Operating Temperature
ESD Sensitivity (HBM)
+1 to -5V
-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]
346
XXXX
HMC346LP3
Low Stress Injection Molded Plastic
Sn/Pb Solder
346
XXXX
MSL1 [2]
HMC346LP3E
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 - 99
HMC346LP3 / 346LP3E
v05.1008
GaAs MMIC VOLTAGE-VARIABLE
ATTENUATOR, DC - 14 GHz
5
Pin Descriptions
Pin Number
Function
GND
Description
Interface Schematic
Package bottom has exposed metal paddle that must also be
connected to PCB RF ground.
1, 3, 7, 10, 12
2, 11
This pin is DC coupled and matched to 50 Ohm. Blocking
capacitors are required if the RF line potential is not equal to
0V.
RF1
RF2
4, 9, 13, 14, 15, 16
N/C
This pin should be connected to PCB RF ground.
5, 8
V2, V1
Control input (master).
6
I
Control input (slave).
Single-Line Control Driver
External op-amp control circuit maintains impedance match while attenuation is varied. Input control ranges from 0 Volts
(min. attenuation) to -3.0 Volts (max. attenuation.)
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 - 100
HMC346LP3 / 346LP3E
v05.1008
GaAs MMIC VOLTAGE-VARIABLE
ATTENUATOR, DC - 14 GHz
5
Evaluation PCB
List of Materials for Evaluation PCB 105709 [1]
The circuit board used in the final application
should be generated with proper RF circuit design
techniques. Signal lines at the RF ports should be
50 ohm impedance and the package ground leads
and package bottom should be connected directly
to the PCB RF ground plane, similar to that shown
above. The evaluation circuit board shown above is
available from Hittite Microwave Corporation upon
request.
Item
Description
J1 - J2
J3 - J6
U1
PCB Mount SMA RF Connector
DC Pin
HMC346LP3 / HMC346LP3E VVA
105695 Evaluation PCB
[2]
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 - 101
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