HMC542LP4E HITTITE [Hittite Microwave Corporation], HMC542LP4E Datasheet

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HMC542LP4E

Manufacturer Part Number
HMC542LP4E
Description
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL SERIAL CONTROL ATTENUATOR, DC - 3.0 GHz
Manufacturer
HITTITE [Hittite Microwave Corporation]
Datasheet

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6
Typical Applications
The HMC542LP4 / HMC542LP4E is ideal for both RF
and IF applications:
• Cellular/PCS/3G Infrastructure
• ISM, MMDS, WLAN, WiMAX, & WiBro
• Microwave Radio & VSAT
• Test Equipment and Sensors
Functional Diagram
Electrical Specifications,
Insertion Loss
Attenuation Range
Return Loss (RF1 & RF2, All Atten. States)
Attenuation Accuracy: (Referenced to Insertion Loss)
All Attenuation States
0.5 - 3.5 dB States
4.0 - 31.5 dB States
All Attenuation 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)
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
Parameter
T
A
v00.0306
= +25° C, With Vcc = +5V
SERIAL CONTROL ATTENUATOR, DC - 3.0 GHz
Order On-line at www.hittite.com
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
HMC542LP4
Features
0.5 dB LSB Steps to 31.5 dB
TTL/CMOS Compatible Serial Data Interface
SPI Compatible Serial Output
+/- 0.25 dB Typical Step Error
Single +5V Supply
4x4 mm SMT Package
General Description
The HMC542LP4 & HMC542LP4E are broadband
6-bit GaAs IC digital attenuators with CMOS com-
patible serial to parallel drivers in low cost lead-
less surface mount packages. This serial control
digital attenuator incorporates off chip AC ground
capacitors for near DC operation, making it suit-
able for a wide variety of RF and IF applications.
Covering DC to 3.0 GHz, the insertion loss is less
than 1.5 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 ± 0.25 dB
typical step error with an IIP3 of +45 dBm. Six bit serial
control words are used to select each attenuation
state. A single Vdd bias of +5V is required.
Frequency (GHz)
DC - 1.5 GHz
1.5 - 3.0 GHz
DC - 3.0 GHz
DC - 3.0 GHz
DC - 1.0 GHz
1.0 - 2.2 GHz
1.0 - 2.2 GHz
2.2 - 3.0 GHz
0.1 - 3.0 GHz
1.5 - 3.0 GHz
DC - 3.0 GHz
0.1 - 1.5 GHz
± (0.20 + 3% of Atten. Setting) Max.
± (0.25 + 3% of Atten. Setting) Max.
± (0.30 + 3% of Atten. Setting) Max.
± (0.15 + 4% of Atten. Setting) Max.
Min.
/
31.5
Typ.
800
900
1.2
1.5
17
20
35
45
542LP4E
Max.
1.5
1.8
Units
dBm
dBm
dBm
dB
dB
dB
dB
dB
dB
dB
dB
ns
ns

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HMC542LP4E Summary of contents

Page 1

... Typical Applications 6 The HMC542LP4 / HMC542LP4E is ideal for both RF and IF applications: • Cellular/PCS/3G Infrastructure • ISM, MMDS, WLAN, WiMAX, & WiBro • Microwave Radio & VSAT • Test Equipment and Sensors Functional Diagram Electrical Specifications, Parameter Insertion Loss Attenuation Range Return Loss (RF1 & RF2, All Atten. States) ...

Page 2

Insertion Loss 0 -0.5 -1 -1.5 -2 +25 C +85 C - 0.5 1 1.5 2 2.5 3 FREQUENCY (GHz) Normalized Attenuation (Only Major States are Shown -10 -15 -20 -25 -30 -35 ...

Page 3

Worst Case Step Error Between Successive Attenuation States 6 1 0.8 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0 0.5 1 1.5 FREQUENCY (GHz) Timing Symbol Parameter Serial Input Setup Time Hold time from Serial Input to Shift ...

Page 4

Logic / Functional Diagram Programming Example to Select 16 dB Attenuation State 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 HMC542LP4 0.5 dB LSB GaAs ...

Page 5

Pin Descriptions 6 Pin Number Function 12, 14, 16-18 RF1, RF2 6 - 11, 13 ACG1 - ACG7 19 Serial Output 20 21 Shift Clock 22 Latch Enable 24 Serial Input For price, ...

Page 6

Application Circuit 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 HMC542LP4 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL SERIAL CONTROL ATTENUATOR 3.0 GHz ...

Page 7

... Operating Temperature Outline Drawing Package Information Part Number HMC542LP4 HMC542LP4E RoHS-compliant Low Stress Injection Molded Plastic [1] Max peak refl ow temperature of 235 °C [2] Max peak refl ow temperature of 260 °C [3] 4-Digit lot number XXXX For price, delivery, and to place orders, please contact Hittite Microwave Corporation: ...

Page 8

... J3 14 Pin DC Connector C1 1000 pF Capacitor, 0603 Pkg. C2, C3 1000 pF Capacitor, 0402 Pkg 330 pF Capacitor, 0402 Pkg. HMC542LP4 / HMC542LP4E U1 Digital Attenuator [2] PCB 114398 Evaluation 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: ...

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