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Электронный компонент: HMC424G16

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MICROWAVE CORPORATION
9 - 80
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
A
TTENU
A
T
ORS - SMT
9
HMC424G16
0.5dB LSB GaAs MMIC 6-BIT DIGITAL
ATTENUATOR, DC - 3 GHz
v01.0404
Functional Diagram
Electrical Specifi cations,
T
A
= +25 C, With Vee = -5V & Vctl = 0/-5V
Typical Applications
The HMC424G16 is ideal for:
Telecom Infrastructure
Military Radios, Radar & ECM
Space Applications
Test Instrumentation
Features
0.5 dB LSB Steps to 31.5 dB
Single Control Line Per Bit
0.5 to 0.8 dB Typical Bit Error
16 Lead Hermetic SMT Package
General Description
The HMC424G16 is a broadband 6-bit GaAs IC
digital attenuator in a 16 lead glass/metal (hermetic)
surface mount package. Covering DC to 3 GHz,
the insertion loss is less than 3 dB typical. The
attenuator bit values are 0.5 (LSB), 1, 2, 4, 8, and
16 dB for a total attenuation of 31.5 dB. Attenuation
accuracy is excellent at 0.5 dB typical step error
with an IIP3 of +32 dBm. Six control voltage inputs,
toggled between 0 and -5V, are used to select each
attenuation state at less than 70 A each. A single
Vee bias of -5V allows operation at frequencies
down to DC.
Parameter
Frequency (GHz)
Min.
Typ.
Max.
Units
Insertion Loss
DC - 3.0 GHz
3.0
3.6
dB
Attenuation Range
DC - 3.0 GHz
31.5
dB
Return Loss (RF1 & RF2, All Atten. States)
DC - 3.0 GHz
12
dB
Attenuation Accuracy: (Referenced to Insertion Loss)
All States
All States
DC - 2.0 GHz
2.0 - 3.0 GHz
0.4 + 4% of Atten. Setting Max
0.5 + 5% of Atten. Setting Max
dB
dB
Input Power for 0.1 dB Compression
1.0 - 3.0 GHz
22
dBm
Input Third Order Intercept Point
(Two-Tone Input Power= 0 dBm Each Tone)
REF State
All Other States
1.0 - 3.0 GHz
46
32
dBm
dBm
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON/tOFF (50% CTL to 10/90% RF)
DC - 3.0 GHz
30
50
ns
ns
MICROWAVE CORPORATION
9 - 81
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
A
TTENU
A
T
ORS - SMT
9
0.5dB LSB GaAs MMIC 6-BIT DIGITAL
ATTENUATOR, DC - 3 GHz
v01.0404
Return Loss RF1, RF2
(Only Major States are Shown)
Insertion Loss
Normalized Attenuation
(Only Major States are Shown)
Bit Error vs. Frequency
(Only Major States are Shown)
Relative Phase vs. Frequency
(Only Major States are Shown)
Bit Error vs. Attenuation State
-6
-5
-4
-3
-2
-1
0
0
0.5
1
1.5
2
2.5
3
3.5
4
+25C
+85C
-40C
INSERTION LOSS (dB)
FREQUENCY (GHz)
-25
-20
-15
-10
-5
0
0
0.5
1
1.5
2
2.5
3
3.5
4
0.5 dB
1 dB
2 dB
4 dB
8 dB
16 dB
31.5 dB
RETURN LOSS (dB)
FREQUENCY (GHz)
-35
-30
-25
-20
-15
-10
-5
0
0
0.5
1
1.5
2
2.5
3
3.5
4
0.5 dB
1 dB
2 dB
4 dB
8 dB
16 dB
31.5 dB
NORMALIZED ATTENUATION (dB)
FREQUENCY (GHz)
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
0
2
4
6
8 10 12 14 16 18 20 22 24 26 28 30 32
0.14 GHz
1 GHz
2 GHz
3 GHz
BIT ERROR (dB)
ATTENUATION STATE (dB)
-3
-2
-1
0
1
2
3
0
0.5
1
1.5
2
2.5
3
3.5
4
0.5 dB
1 dB
2 dB
4 dB
8 dB
16 dB
31.5 dB
BIT ERROR (dB)
FREQUENCY (GHz)
-20
0
20
40
60
80
100
0
0.5
1
1.5
2
2.5
3
3.5
4
0.5 dB
1 dB
2 dB
4 dB
8 dB
16 dB
31.5 dB
RELATVIE PHASE (deg)
FREQUENCY (GHz)
HMC424G16
MICROWAVE CORPORATION
9 - 82
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
A
TTENU
A
T
ORS - SMT
9
Truth Table
Control Voltage
Bias Voltage & Current
Worst Case Step Error
Between Successive Attenuation States
Control Voltage Input
Attenuation
State
RF1 - RF2
V1
16 dB
V2
8 dB
V3
4 dB
V4
2 dB
V5
1 dB
V6
0.5 dB
Low
Low
Low
Low
Low
Low
Reference
I.L.
Low
Low
Low
Low
Low
High
0.5 dB
Low
Low
Low
Low
High
Low
1 dB
Low
Low
Low
High
Low
Low
2 dB
Low
Low
High
Low
Low
Low
4 dB
Low
High
Low
Low
Low
Low
8 dB
High
Low
Low
Low
Low
Low
16 dB
High
High
High
High
High
High
31.5 dB
Any Combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
State
Bias Condition
Low
0 to -2V @ 70 A Typ.
High
Vee to Vee +0.8V @ 5 A Typ.
Vee Range= -5.0 Vdc 10%
Vee (VDC)
Iee (Typ.) (mA)
Iee (Max.) (mA)
-5.0
2
4
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
0
0.5
1
1.5
2
2.5
3
3.5
4
STEP ERROR (dB)
FREQUENCY (GHz)
HMC424G16
0.5dB LSB GaAs MMIC 6-BIT DIGITAL
ATTENUATOR, DC - 3 GHz
v01.0404
MICROWAVE CORPORATION
9 - 83
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
A
TTENU
A
T
ORS - SMT
9
HMC424G16
0.5dB LSB GaAs MMIC 6-BIT DIGITAL
ATTENUATOR, DC - 3 GHz
v01.0404
Outline Drawing
NOTES:
1. PACKAGE MATERIAL: ALUMINA LOADED BOROSILICATE GLASS.
2. LEADS, BASE, COVER MATEIRAL: KOVARTM (#7052 CORNING).
3. PLATING: ELECTROLYTIC GOLD 50 MICROINCHES MIN.,
OVER ELECTROLYTIC NICKEL 75 MICROINCHES MIN.
4. ALL DIMENSIONS ARE IN INCHES [MILLIMETERS].
5. TOLERANCES: 0.005 [.013] UNLESS OTHERWISE SPECIFIED.
6. CHARACTERS TO BE HELVETICA MEDIUM .030 HIGH,
BLACK INK, LOCATED APPROX. AS SHOWN.
7. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED
TO PCB RF GROUND.
Absolute Maximum Ratings
Control Voltage (V1 to V6)
Vee - 0.5 Vdc
Bias Voltage (Vee)
-7.0 Vdc
Channel Temperature
150 C
Thermal Resistance
140 C/W
Storage Temperature
-65 to + 150 C
Operating Temperature
-55 to +85 C
RF Input Power (0.5 - 13.0 GHz)
+25 dBm
MICROWAVE CORPORATION
9 - 84
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
A
TTENU
A
T
ORS - SMT
9
HMC424G16
0.5dB LSB GaAs MMIC 6-BIT DIGITAL
ATTENUATOR, DC - 3 GHz
v01.0404
Suggested Driver Circuit
(One Circuit Required Per Bit Control Input)
Simple driver using inexpensive standard logic ICs provides fast switching using minimum DC current. * Recommended value
to suppress unwanted RF signals at V1 - V6 control lines.
Pin Number
Function
Description
Interface Schematic
1, 12-16
V1-V6
See truth table and control voltage table.
2, 4-6, 8, 9, 11
GND
Package bottom must also be connected to RF/DC ground.
3, 10
RF1, RF2
These pins are DC coupled and matched to 50 Ohm.
Blocking capacitors are required if RF line is not equal to 0V.
7
Vee
Supply Voltage -5V 10%
Pin Descriptions