hittite HMC346LP3 User Manual
查询HMC346LP3供应商
MICROWAVE CORPORATION
Typical Applications
The HMC346LP3 is ideal for:
• Basestation Infrastructure
9
• Fiber Optics & Broadband Telecom
• Microwave Radio & VSAT
• Military Radios, Radar, & ECM
• Test Instrumentation
Functional Diagram
ATTENUATORS - SMT
v02.0604
HMC346LP3
GaAs MMIC VOLTAGE-VARIABLE
ATTENUATOR, DC - 14 GHz
Features
Wide Bandwidth: DC - 14 GHz
Low Phase Shift vs. Attenuation
30 dB Attenuation Range
Simplifi ed Voltage Control
3 mm x 3 mm x 1 mm SMT Package
General Description
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 amplitude range. This VVA is an excellent alternative to
the HMC121C8.
9 - 74
Electrical Specifi cations, T
Parameter Min Typical Max Units
Insertion Loss DC - 10 GHz
Attenuation Range DC - 10 GHz
Return Loss DC - 14 GHz 5 10 dB
Switching Characteristics tRISE, tFALL (10/90% RF):
Input Power for 0.25 dB Compression (0.5 - 8 GHz) Min. Atten:
Input Third Order Intercept (0.5 - 8 GHz)
(Two-tone Input Power = -8 dBm Each Tone)
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
= +25° C, 50 ohm system
A
DC - 14 GHz
DC - 14 GHz
tON, tOFF (50% CTL to 10/90% RF):
Atten. >2 dB:
Min. Atten:
Atten. >2 dB:
Order Online at www.hittite.com
1.7
2.8
27
22
30
27
2
8
+8
-4
+25
+10
2.2
3.3
dB
dB
dB
dB
ns
ns
dBm
dBm
dBm
dBm
MICROWAVE CORPORATION
v02.0604
HMC346LP3
GaAs MMIC VOLTAGE-VARIABLE
ATTENUATOR, DC - 14 GHz
GaAs MMIC SUB-HARMONICALLY PUMPED MIXER 17 - 25 GHz
Insertion Loss vs. Temperature
0
-0.5
-1
-1.5
-2
-2.5
-3
INSERTION LOSS (dB)
-3.5
-4
0246810121416
+25 C
-40 C
+85 C
FREQUENCY (GHz)
Relative Attenuation
0
-5
-10
-15
-20
-25
ATTENUATION (dB)
-30
-35
-40
0246810121416
FREQUENCY (GHz)
Relative Attenuation vs.
Return Loss vs. Attenuation
0
-5
-10
-15
-20
-25
RETURN LOSS (dB)
-30
-35
0246810121416
MIN
5 dB
MAX
FREQUENCY (GHz)
Control Voltage @ 10 GHz
0
-0.5
-1
-1.5
-2
CONTROL VOLTAGE (Vdc)
-2.5
-3
0 5 10 15 20 25 30
RELATIVE ATTENUATION (dB)
V1
V2
9
ATTENUATORS - SMT
Relative Phase
180
160
140
120
100
80
60
40
RELATIVE PHASE (DEG)
20
0
0246810121416
*Two-tone input power = -8 dBm each tone, 1 MHz spacing.
5 dB
10 dB
15 dB
20 dB
25 dB
30 dB
max
FREQUENCY (GHz)
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
Input IP3 vs. Attenuation*
30
25
20
15
10
INPUT IP3 (dBm)
5
0
0246810121416
FREQUENCY (GHz)
0 dB
3 dB
6 dB
10 dB
9 - 75
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