HMC542BLP4E
v00.1212
Attenuators - Digital - SMT
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
SERIAL CONTROL ATTENUATOR, DC - 4 GHz
Typical Applications
Features
The HMC542BLP4E is ideal for:
0.5 dB LSB Steps to 31.5 dB
• Cellular/PCS/3G Infrastructure
TTL/CMOS Compatible Serial Data Interface
• ISM, MMDS, WLAN, WiMAX, & WiBro
SPI Compatible Serial Output
• Microwave Radio & VSAT
± 0.25 dB Typical Step Error
• Test Equipment and Sensors
Single +5V Supply
24 Lead 4x4 mm QFN Package: 16 mm²
Functional Diagram
General Description
The HMC542BLP4E is a broadband 6-bit GaAs IC
digital attenuator with a CMOS compatible serial
to parallel driver in low cost leadless surface mount
package. This serial control digital attenuator incorp
rates off chip AC ground capacitors for near DC operation, making it suitable for a wide variety of RF and
IF applications. Covering DC to 4 GHz, the insertion loss is 1.7 dB and 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 +50 dBm.
Six bit serial control words are used to select each
attenuation state. A single Vcc bias of +5V is required.
Electrical Specifications, TA = +25° C, with Vcc = +5V
Parameter
Typ.
Max.
Units
Insertion Loss
DC - 1.5 GHz
1.5 - 3.0 GHz
3.0 - 4.0 GHz
1.4
1.7
1.9
1.5
1.8
2.3
dB
dB
dB
Attenuation Range
DC - 4.0 GHz
31.5
dB
Return Loss (RF1 & RF2, All Atten. States)
DC - 4.0 GHz
19
dB
Attenuation Accuracy: (Referenced to Insertion Loss)
All Attenuation States
DC - 1.0 GHz
1.0 - 4.0 GHz
Input Power for 0.1 dB Compression
0.1 - 4.0 GHz
30
dBm
Input Third Order Intercept Point
(Two-Tone Input Power= 0 dBm Each Tone)
0.1 - 4.0 GHz
50
dBm
60
100
ns
ns
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
1
Frequency (GHz)
DC - 4.0 GHz
Min.
± (0.20 + 3% of Atten. Setting) Max
± (0.20 + 2.5% of Atten. Setting) Max
dB
dB
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price, 2delivery,
and to
placeChelmsford,
orders: Analog MA
Devices,
Inc.,
For price,
delivery
and
to place
orders:
Microwave
Corporation,
Elizabeth
Drive,
01824
responsibility
is assumed
by Analog
Devices
for its use,
nor for anyHittite
infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
Order781-329-4700
On-line at www.hittite.com
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
HMC542BLP4E
v00.1212
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
SERIAL CONTROL ATTENUATOR, DC - 4 GHz
Normalized Attenuation
Insertion Loss
(Only Major States are Shown)
NORMALIZED ATTENUATION (dB)
INSERTION LOSS (dB)
-0.5
-1
-1.5
-2
-2.5
-3
-5
-10
-15
-20
-25
-30
-35
0
0.5
1
1.5
2
2.5
3
3.5
4
0
0.5
1
1.5
FREQUENCY (GHz)
+25 C
+85 C
0
0
-5
-5
-10
-10
RETURN LOSS (dB)
RETURN LOSS (dB)
3.5
4
(Only Major States are Shown)
-15
31.5 dB
0.5-16 dB
-30
-35
8, 31.5 dB
-15
-20
-25
-30
0, 0.5, 1, 2, 4, 16 dB
-35
-40
-40
0
0.5
1
1.5
2
2.5
3
3.5
4
0
0.5
1
FREQUENCY (GHz)
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
Bit Error vs. Frequency
Bit Error vs. Attenuation State
(Only Major States are Shown)
1.2
2
1
1.5
0.8
31.5 dB
BIT ERROR (dB)
1
BIT ERROR (dB)
3
Output Return Loss
(Only Major States are Shown)
-25
2.5
-40 C
Input Return Loss
-20
2
FREQUENCY (GHz)
Attenuators - Digital - SMT
0
0
16 dB
0.5
0
-0.5
0.5-8B
500 MHz
0.2
0
-0.2
100 MHz
-0.6
-1.5
1 GHz
60 MHz
0.4
-0.4
-1
2 GHz
0.6
3, 3.6 GHz
-0.8
-1
-2
0
0.5
1
1.5
2
2.5
FREQUENCY (GHz)
3
3.5
4
0
4
8
12
16
20
24
28
32
ATTENUATION STATE (dB)
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price, 2delivery,
and to
placeChelmsford,
orders: Analog MA
Devices,
Inc.,
For price,
delivery
and
to place
orders:
Microwave
Corporation,
Elizabeth
Drive,
01824
responsibility
is assumed
by Analog
Devices
for its use,
nor for anyHittite
infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
Order781-329-4700
On-line at www.hittite.com
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
2
HMC542BLP4E
v00.1212
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
SERIAL CONTROL ATTENUATOR, DC - 4 GHz
Relative Phase vs. Frequency
Worst Case Step Error
Between Successive Attenuation States
(Only Major States are Shown)
1
3
0.8
60
0.6
STEP ERROR (dB)
RELATIVE PHASE (deg)
Attenuators - Digital - SMT
80
40
31.5 dB
20
16 dB
8 dB
0
0.4
0.2
0
-0.2
-0.4
-0.6
-20
0.5-4 dB
-0.8
-40
-1
0
0.5
1
1.5
2
2.5
FREQUENCY (GHz)
3
3.5
4
0
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price, 2delivery,
and to
placeChelmsford,
orders: Analog MA
Devices,
Inc.,
For price,
delivery
and
to place
orders:
Microwave
Corporation,
Elizabeth
Drive,
01824
responsibility
is assumed
by Analog
Devices
for its use,
nor for anyHittite
infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
Order781-329-4700
On-line at www.hittite.com
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
HMC542BLP4E
v00.1212
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
SERIAL CONTROL ATTENUATOR, DC - 4 GHz
Serial Input Truth Table
Latch
Enable
Shift
Clock
Reset
X
X
L
Shift register cleared
X
á
H
Shift register clocked
á
X
H
Contents of shift register
transferred to Digital
Attenuator
Function
Timing
Parameter
Symbol
Vcc = +5V
Min.
Max.
ts
20
-
ns
th
0
-
ns
Setup time from Reset to
Shift Clock
Clock Frequency
(1/tclk)
0 to 1.3V
High
3 to 5V
tlsup
tpd
40
-
-
30
Control Voltage Input
Units
Serial Input Setup Time
Latch Enable Window,
Latch Enable to C0.5
through C8
Vcc = +5V
Low
Truth Table
Hold time from Serial
Input to Shift Clock
Setup time from Shift
Clock to Latch Enable
State
ns
ns
-
20
-
ns
fclk
-
30
MHz
Attenuation
State
RF1 - RF2
C16
C8
C4
C2
C1
C0.5
High
High
High
High
High
High
Reference
I.L.
High
High
High
High
High
Low
0.5 dB
High
High
High
High
Low
High
1 dB
High
High
High
Low
High
High
2 dB
High
High
Low
High
High
High
4 dB
High
Low
High
High
High
High
8 dB
Low
High
High
High
High
High
16 dB
Low
Low
Low
Low
Low
Low
31.5 dB
Attenuators - Digital - SMT
Digital Control Voltages
Any combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
Timing Diagram
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price, 2delivery,
and to
placeChelmsford,
orders: Analog MA
Devices,
Inc.,
For price,
delivery
and
to place
orders:
Microwave
Corporation,
Elizabeth
Drive,
01824
responsibility
is assumed
by Analog
Devices
for its use,
nor for anyHittite
infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
Order781-329-4700
On-line at www.hittite.com
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
4
HMC542BLP4E
v00.1212
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
SERIAL CONTROL ATTENUATOR, DC - 4 GHz
Attenuators - Digital - SMT
Logic / Functional Diagram
Programming Example to Select 16 dB Attenuation State
5
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price, 2delivery,
and to
placeChelmsford,
orders: Analog MA
Devices,
Inc.,
For price,
delivery
and
to place
orders:
Microwave
Corporation,
Elizabeth
Drive,
01824
responsibility
is assumed
by Analog
Devices
for its use,
nor for anyHittite
infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
Order781-329-4700
On-line at www.hittite.com
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
HMC542BLP4E
v00.1212
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
SERIAL CONTROL ATTENUATOR, DC - 4 GHz
Pin Descriptions
Function
Description
1, 3, 5, 14,
16-18, 23
N/C
These pins are not connected internally. However, all data
shown herein was measured with these pins connected
to RF/DC Ground.
2
Vcc
Supply Voltage.
4, 15
RF1, RF2
This pin is DC coupled and matched to 50 Ohms
Blocking capacitors are required. Select value based on
lowest frequency of operation.
6 - 11, 13
ACG1 - ACG7
External capacitor to ground is required. Select value for
lowest frequency of operation. Place capacitor as close to
pins as possible.
12
N/C
This pin is not connected internally and any connection made
to it externally will have no effect on product performance.
19
Serial Output
Serial data output. Serial input data
delayed by 8 clock cycles
20
Reset
21
Shift Clock
22
Latch Enable
24
Serial Input
Interface Schematic
Attenuators - Digital - SMT
Pin Number
See truth table, control voltage table and timing diagram.
GND
Package bottom has an exposed metal paddle
that must be connected to RF/DC Ground.
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price, 2delivery,
and to
placeChelmsford,
orders: Analog MA
Devices,
Inc.,
For price,
delivery
and
to place
orders:
Microwave
Corporation,
Elizabeth
Drive,
01824
responsibility
is assumed
by Analog
Devices
for its use,
nor for anyHittite
infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
Order781-329-4700
On-line at www.hittite.com
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
6
HMC542BLP4E
v00.1212
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
SERIAL CONTROL ATTENUATOR, DC - 4 GHz
Attenuators - Digital - SMT
Application Circuit
7
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price, 2delivery,
and to
placeChelmsford,
orders: Analog MA
Devices,
Inc.,
For price,
delivery
and
to place
orders:
Microwave
Corporation,
Elizabeth
Drive,
01824
responsibility
is assumed
by Analog
Devices
for its use,
nor for anyHittite
infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
Order781-329-4700
On-line at www.hittite.com
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
HMC542BLP4E
v00.1212
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
SERIAL CONTROL ATTENUATOR, DC - 4 GHz
RF Input Power (DC - 4.0 GHz)
+28 dBm (T = +85 °C)
Digital Inputs (Reset, Shift Clock,
Latch Enable & Serial Input)
-0.5 to (Vcc +0.5) V
Bias Voltage (Vcc)
+5.6 V
Channel Temperature
150 °C
Continuous Pdiss (T = 85 °C)
(derate 8.6 mW/°C above 85 °C)
0.56 W
Thermal Resistance
116 °C/W
Storage Temperature
-65 to +150 °C
Operating Temperature
-40 to +85 °C
ESD Sensitivity (HBM)
Class 1A
Vcc (V)
Idd (Typ.) (mA)
+4.5
2.7
+5.0
2.8
+5.5
2.9
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Outline Drawing
Attenuators - Digital - SMT
Bias Voltage
Absolute Maximum Ratings
NOTES:
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS]
3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE.
4. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM.
PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM.
5. PACKAGE WARP SHALL NOT EXCEED 0.05mm.
6. ALL GROUND LEADS AND GROUND PADDLE MUST BE
SOLDERED TO PCB RF GROUND.
7. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED
LAND PATTERN.
Package Information
Part Number
Package Body Material
Lead Finish
HMC542BLP4E
RoHS-compliant Low Stress Injection Molded Plastic
100% matte Sn
MSL Rating
MSL1
[1]
Package Marking [2]
H542B
XXXX
[1] Max peak reflow temperature of 260 °C
[2] 4-Digit lot number XXXX
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price, 2delivery,
and to
placeChelmsford,
orders: Analog MA
Devices,
Inc.,
For price,
delivery
and
to place
orders:
Microwave
Corporation,
Elizabeth
Drive,
01824
responsibility
is assumed
by Analog
Devices
for its use,
nor for anyHittite
infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
Order781-329-4700
On-line at www.hittite.com
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
8
HMC542BLP4E
v00.1212
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
SERIAL CONTROL ATTENUATOR, DC - 4 GHz
Attenuators - Digital - SMT
Evaluation PCB
VCC
List of Materials for Evaluation PCB 114399 - HMC542BLP4 [1]
Item
Description
J1 - J2
PCB Mount SMA Connector
J3
18 Pin DC Connector
J4, J5
DC Pin
C1
1000 pF Capacitor, 0603 Pkg.
C2, C3
1000 pF Capacitor, 0402 Pkg.
C4 - C7
330 pF Capacitor, 0402 Pkg.
U1
HMC542BLP4E Digital Attenuator
PCB [2]
114398 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
The circuit board used in the 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.
[2] Circuit Board Material: Rogers 4350 or Arlon 25FR
9
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price, 2delivery,
and to
placeChelmsford,
orders: Analog MA
Devices,
Inc.,
For price,
delivery
and
to place
orders:
Microwave
Corporation,
Elizabeth
Drive,
01824
responsibility
is assumed
by Analog
Devices
for its use,
nor for anyHittite
infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
Order781-329-4700
On-line at www.hittite.com
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
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