View HMC424LH5_618547.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

HMC424LH5
v00.0805
0.5dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR, DC - 13 GHz
Typical Applications
Features
0.5 dB LSB Steps to 31.5 dB Single Control Line Per Bit +/- 0.3 dB Typical Bit Error Hermetic SMT Package, 25mm2 Screening to MIL-PRF-38535 (Class B or S) Available
6
ATTENUATORS - SMT
The HMC424LH5 is ideal for: * Telecom Infrastructure * Military Radio, Radar & ECM * Space Systems * Test Instrumentation
Functional Diagram
General Description
The HMC424LH5 is a broadband 6-bit GaAs MMIC digital attenuator housed in a hermetic SMT leadless package. Covering DC to 13 GHz, the insertion loss is less than 3.5 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. A single Vee bias of -5V allows operation at frequencies down to DC. The HMC424LH5 is compatible with standard and lead free surface mount manufacturing techniques and is suitable for high reliability military, industrial and space applications.
Electrical Specifications, TA = +25 C, With Vee = -5V & VCTL= 0/-5V
Parameter Insertion Loss Attenuation Range Return Loss (RF1 & RF2, All Atten. States) Attenuation Accuracy: (Referenced to Insertion Loss) 0.5 - 16.5 dB States 17 - 31.5 dB States Input Power for 0.1 dB Compression Input Third Order Intercept Point (Two-Tone Input Power= 0 dBm Each Tone) Switching Characteristics tRISE, tFALL (10/90% RF) tON/tOFF (50% CTL to 10/90% RF) REF State All Other States DC - 13.0 GHz DC - 13.0 GHz 1.0 - 13.0 GHz 1.0 - 13.0 GHz DC - 13.0 GHz 30 50 ns ns 0.4 + 4% of Atten. Setting Max 0.5 + 5% of Atten. Setting Max 22 46 32 dB dB dBm dBm dBm Frequency (GHz) DC - 4.0 GHz 4.0 - 8.0 GHz 8.0 - 13.0 GHz DC - 13.0 GHz DC - 13.0 GHz Min. Typ. 2.7 3.3 4.2 31.5 12 Max. 3.2 3.8 4.7 Units dB dB dB dB dB
6 - 114
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
HMC424LH5
v00.0805
0.5dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR, DC - 13 GHz
Return Loss RF1, RF2
Insertion Loss
0 -1 INSERTION LOSS (dB) -2 -3 -4 -5 -6 -7 -8 -9 -10 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 FREQUENCY (GHz)
+25 C +85 C -40 C
(Only Major States are Shown)
0
6
8 dB 1 dB I.L 2 dB 4 dB 16 dB 0.5 dB 31.5 dB
-5 RETURN LOSS (dB)
-10
-15
-20
-25 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 FREQUENCY (GHz)
Normalized Attenuation
(Only Major States are Shown)
0 NORMALIZED ATTENUATION (dB) -5 -10 -15 -20 -25 -30 -35 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 FREQUENCY (GHz)
Bit Error vs. Attenuation State
2 1.5 1 BIT ERROR (dB) 0.5 0 -0.5 -1 -1.5 -2 0 4 8 12 16 20 24 28 32 ATTENUATION STATE (dB)
0.1 GHz 4 GHz 8 GHz 13 GHz
Bit Error vs. Frequency
(Only Major States are Shown)
2 1.5 1 BIT ERROR (dB) 0.5 0 -0.5 -1 -1.5 -2 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 FREQUENCY (GHz)
0.5 dB 1 dB 2 dB 4 dB 8 dB 16 dB 31.5 dB
Relative Phase vs. Frequency
(Only Major States are Shown)
60 50 RELATIVE PHASE (deg) 40 30 20 10 0 -10
0.5 - 4 dB 16 dB 8 dB 31.5 dB
-20 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 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 - 115
ATTENUATORS - SMT
HMC424LH5
v00.0805
0.5dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR, DC - 13 GHz
Worst Case Step Error Between Successive Attenuation States
Bias Voltage & Current
Vee Range= -5.0 Vdc 10% Vee (VDC) -5.0 Iee (Typ.) (mA) 3 Iee (Max.) (mA) 5
6
ATTENUATORS - SMT
STEP ERROR (dB)
2 1.5 1 0.5 0 -0.5 -1
Control Voltage
State Bias Condition 0 to -3V @ 35 A Typ. -5 to -4.2V @ 5 A Typ. Low
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
-1.5 -2 FREQUENCY (GHz)
High
Truth Table
Control Voltage Input V1 16 dB Low Low Low Low Low Low High High V2 8 dB Low Low Low Low Low High Low High V3 4 dB Low Low Low Low High Low Low High V4 2 dB Low Low Low High Low Low Low High V5 1 dB Low Low High Low Low Low Low High V6 0.5 dB Low High Low Low Low Low Low High Attenuation State RF1 - RF2 Reference I.L. 0.5 dB 1 dB 2 dB 4 dB 8 dB 16 dB 31.5 dB
Any Combination of the above states will provide an attenuation approximately equal to the sum of the bits selected.
6 - 116
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
HMC424LH5
v00.0805
0.5dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR, DC - 13 GHz
Absolute Maximum Ratings
Control Voltage (V1 to V6) Bias Voltage (Vee) Channel Temperature Thermal Resistance Continuous Pdiss (T= 85 C) (derate 2.9 mW/ C above 85 C) Storage Temperature Operating Temperature RF Input Power (0.5 - 13.0 GHz) Vee - 0.5 Vdc -7.0 Vdc 150 C 344 C/W 0.18 W -65 to + 150 C -55 to +85 C +25 dBm
ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS
6
ATTENUATORS - SMT
6 - 117
Outline Drawing
NOTES: 1. PACKAGE BODY MATERIAL: CERAMIC & KOVAR 2. LEAD AND GROUND PADDLE PLATING: GOLD 40 - 80 MICROINCHES. 3. DIMENSIONS ARE IN INCHES [MILLIMETERS]. 4. LEAD SPACING TOLERANCE IS NON-CUMULATIVE 5. PAD BURR LENGTH 0.15mm MAX. PAD BURR HEIGHT 0.25mm MAX. 6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND.
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
HMC424LH5
v00.0805
0.5dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR, DC - 13 GHz
Pin Description
6
ATTENUATORS - SMT
Pad Number 1, 9
Function RF1, RF2
Description This pin is DC coupled and matched to 50 Ohm. Blocking capacitors are required if RF line potential is not equal to 0V.
Interface Schematic
2-7
V6 - V1
See truth table and control voltage table.
8, 10, 12
GND
Package base must also be connected to RF ground
11
Vee
Supply Voltage -5V 10%
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.
6 - 118
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
HMC424LH5
v00.0805
0.5dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR, DC - 13 GHz
Evaluation PCB
6
ATTENUATORS - SMT
List of Materials for Evaluation PCB 110855 [1]
Item J1 - J2 J3 C1 U1 PCB [2] Description PCB Mount SMA SRI Connector 8 Pin DC Connector .1" Thruhole 0.01 F Capacitor, 0603 Pkg. HMC424LH5 Digital Attenuator 110853 Evaluation PCB [1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Rogers 4350
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 available from Hittite upon request.
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 - 119

▲Up To Search▲

Price & Availability of HMC424LH5

	To Download HMC424LH5 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .