HMC346LP3 [HITTITE]
GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, DC - 14 GHz; 砷化镓MMIC压控衰减器， DC - 14 GHz的
| 型号： | HMC346LP3 |
| 厂家： | 
HITTITE MICROWAVE CORPORATION |
| 描述： | GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, DC - 14 GHz |
| 文件： | 总6页 (文件大小：259K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HMC346LP3
v02.0604
MICROWAVE CORPORATION
GaAs MMIC VOLTAGE-VARIABLE
ATTENUATOR, DC - 14 GHz
Typical Applications
Features
The HMC346LP3 is ideal for:
Wide Bandwidth: DC - 14 GHz
Low Phase Shift vs. Attenuation
30 dB Attenuation Range
• Basestation Infrastructure
9
• Fiber Optics & Broadband Telecom
• Microwave Radio & VSAT
• Military Radios, Radar, & ECM
• Test Instrumentation
Simplified Voltage Control
3 mm x 3 mm x 1 mm SMT Package
General Description
Functional Diagram
The HMC346LP3 is an absorptive Voltage Variable
Attenuator (VVA) in a low cost leadless surface
mount plastic package 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 ampli-
tude range. This VVA is an excellent alternative to
the HMC121C8.
Electrical Specifications,TA = +25° C, 50 ohm system
Parameter
Min
Typical
Max
Units
Insertion Loss
DC - 10 GHz
DC - 14 GHz
1.7
2.8
2.2
3.3
dB
dB
Attenuation Range
DC - 10 GHz
DC - 14 GHz
27
22
30
27
dB
dB
Return Loss
DC - 14 GHz
5
10
dB
Switching Characteristics
tRISE, tFALL (10/90% RF):
tON, tOFF (50% CTL to 10/90% RF):
2
8
ns
ns
Input Power for 0.25 dB Compression (0.5 - 8 GHz)
Min. Atten:
Atten. >2 dB:
+8
-4
dBm
dBm
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:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
9 - 74
HMC346LP3
v02.0604
MICROWAVE CORPORATION
GaAs MMIC VOLTAGE-VARIABLE
ATTENUATOR, DC - 14 GHz
InseGrtiaoAn sLoMssMvIsC.TeSmUpBer-aHtuAreRMONICALLY RPeUlaMtivPeEADtteMnuIXatEioRn 17 - 25 GHz
0
-0.5
-1
0
-5
-10
-15
-20
-25
-30
-35
-40
9
-1.5
-2
-2.5
-3
+25 C
-40 C
+85 C
-3.5
-4
0
2
4
6
8
10
12
14
16
0
2
4
6
8
10
12
14
16
FREQUENCY (GHz)
FREQUENCY (GHz)
Relative Attenuation vs.
Control Voltage @ 10 GHz
Return Loss vs. Attenuation
0
0
V1
V2
-5
-0.5
-1
-10
-15
-20
-1.5
-2
-25
MIN
5 dB
MAX
-2.5
-3
-30
-35
0
2
4
6
8
10
12
14
16
0
5
10
15
20
25
30
RELATIVE ATTENUATION (dB)
FREQUENCY (GHz)
Relative Phase
Input IP3 vs. Attenuation*
180
160
30
25
20
15
10
5 dB
10 dB
15 dB
20 dB
25 dB
30 dB
max
140
120
100
80
60
0 dB
3 dB
6 dB
10 dB
40
5
0
20
0
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:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
9 - 75
HMC346LP3
v02.0604
MICROWAVE CORPORATION
GaAs MMIC VOLTAGE-VARIABLE
ATTENUATOR, DC - 14 GHz
Second Harmonic
vs. Attenuation, Pin = -8 dBm
Input IP2 vs. Attenuation*
70
60
50
40
80
70
60
50
9
30
40
0 dB
0 dB
3 dB
6 dB
3 dB
6 dB
20
10
10 dB
30
20
10 dB
0
2
4
6
8
10
12
14
16
0
2
4
6
8
10
12
14
16
FREQUENCY (GHz)
FREQUENCY (GHz)
1 dB Compression vs. Attenuation
0.25 dB Compression vs. Attenuation
15
20
10
15
5
10
5
0 dB (REF)
6 dB
0
-5
0
0 dB (REF)
6 dB
-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:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
9 - 76
HMC346LP3
v02.0604
MICROWAVE CORPORATION
GaAs MMIC VOLTAGE-VARIABLE
ATTENUATOR, DC - 14 GHz
Absolute Maximum Ratings
RF Input Power
+18 dBm
Control Voltage Range
Storage Temperature
Operating Temperature
+1.0 to -5.0 Vdc
-65 to +150 °C
-40 to +85 °C
9
Outline Drawing
NOTES:
1. MATERIAL PACKAGE BODY: LOW STRESS INJECTION MOLDED
PLASTIC SILICA AND SILICON IMPREGNATED.
2. LEAD AND GROUND PADDLE MATERIAL: COPPER ALLOY
3. LEAD AND GROUND PADDLE PLATING: Sn/Pb SOLDER
4. DIMENSIONS ARE IN INCHES [MILLIMETERS].
5. LEAD SPACING TOLERANCE IS NON-CUMULATIVE
6. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM.
PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM.
7. PACKAGE WARP SHALL NOT EXCEED 0.05mm.
8. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED
TO PCB RF GROUND.
9. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED PCB
LAND PATTERN.
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
9 - 77
HMC346LP3
v02.0604
MICROWAVE CORPORATION
GaAs MMIC VOLTAGE-VARIABLE
ATTENUATOR, DC - 14 GHz
Pin Descriptions
Pin Number
Function
Description
Interface Schematic
Package bottom has exposed metal paddle that must also be
connected to PCB RF ground.
9
1, 3, 7, 10, 12
GND
RF1
RF2
This pin is DC coupled and matched to 50 Ohm. Blocking
capacitors are required if the RF line potential is not equal to 0V.
2, 11
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:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
9 - 78
HMC346LP3
v02.0604
MICROWAVE CORPORATION
GaAs MMIC VOLTAGE-VARIABLE
ATTENUATOR, DC - 14 GHz
Evaluation PCB
9
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 con-
nected 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.
List of Material
Item
Description
J1 - J2
J3 - J6
U1
PC Mount SMA RF Connector
DC Pin
HMC346LP3 VVA
105695 Evaluation PCB
PCB*
* Circuit Board Material: Rogers 4350
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
9 - 79
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