HMC1018ALP4E
v01.1116
Attenuators - Digital - SMT
1.0 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.1 - 30 GHz
Typical Applications
Features
The HMC1018ALP4E is ideal for:
1.0 dB LSB Steps to 31 dB
• Fiber Optics & Broadband Telecom
TTL/CMOS Compatible, Serial Control
• Microwave Radio & VSAT
• Military Radios, Radar & ECM
Unique Asynchronous Mode Control Allows
Immediate Attenuation Level Setting
• Space Applications
±1.0 dB Typical Bit Error
• Sensors
High Input IP3: +43 dBm
• Test & Measurement Equipment
24 Lead 4x4mm SMT Package: 16mm2
Functional Diagram
General Description
The HMC1018ALP4E is a broadband 5-bit GaAs
IC digital attenuator in a low cost leadless surface
mount package. Covering 0.1 to 30.0 GHz, the insertion loss is less than 5.5 dB typical. The attenuator
bit values are 1.0 (LSB), 2, 4, 8, 16 for a total attenuation of 31 dB. Attenuation accuracy is excellent
at ±0.4 dB typical step error with an IIP3 of +43 dBm.
The control interface is CMOS/TTL compatible and
accepts a three wire serial input. The HMC1018ALP4E
features a user selectable power up state and a serial
output port for cascading other Analog Devices serial
controlled components.
Electrical Specifications, TA = +25° C, With Vdd = Vdd1 = +5V, Vss = -5V
Parameter
Frequency (GHz)
Typ.
Max.
Units
0.1 - 18.0 GHz
18.0 - 26.5 GHz
26.5 - 30.0 GHz
4.5
5.5
6.5
6.0
7.0
8.0
dB
dB
dB
Attenuation Range
0.1 - 30.0 GHz
31
dB
Return Loss (RF1 & RF2, All Atten. States)
0.1 - 30.0 GHz
12
dB
0.1 - 33.0 GHz
0.1 - 20.0 GHz
20.0 - 30.0 GHz
30.0 - 33.0 GHz
± (0.5 + 5%) of Atten. Setting Max
± (0.5 + 5%) of Atten. Setting Max
± (0.6 + 8%) of Atten. Setting Max
± (0.6 + 10%) of Atten. Setting Max
dB
dB
dB
Input Power for 0.1 dB Compression
0.1 - 0.5 GHz
0.5 - 30.0 GHz
20
25
dBm
dBm
Input Third Order Intercept Point
(Two-Tone Input Power= 0 dBm Each Tone)
0.1 - 0.5 GHz
0.5 - 30.0 GHz
40
43
dBm
dBm
Switching Characteristics
0.1 - 30.0 GHz
60
90
ns
ns
Insertion Loss
Attenuation Accuracy: (Referenced to Insertion
Loss)
1.0 - 15 dB States
16 - 31 dB States
16 - 31 dB States
16 - 31 dB States
Min.
tRISE, tFALL (10/90% RF)
tON/tOFF (50% CTL to 10/90% RF)
1
Idd1
0.1 - 30.0 GHz
2.5
4.5
6.5
mA
Iss
0.1 - 30.0 GHz
-7.0
-5.5
-3.0
mA
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
HMC1018ALP4E
v01.1116
1.0 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.1 - 30 GHz
Normalized Attenuation
Insertion Loss vs. Temperature
(Only Major States are Shown)
-4
-6
-8
-10
-12
0
5
10
15
20
25
30
35
40
0
-5
-10
-15
-20
-25
-30
-35
-40
0
FREQUENCY (GHz)
+25 C
+85 C
-40 C
-10
-10
RETURN LOSS (dB)
RETURN LOSS (dB)
0
-20
-30
-40
10
15
20
25
FREQUENCY (GHz)
IL
1 dB
2 dB
30
35
4 dB
8 dB
16 dB
40
31 dB
-30
-40
0
5
31 dB
10
IL
1 dB
2 dB
15
20
25
FREQUENCY (GHz)
30
35
4 dB
8 dB
16 dB
40
31 dB
Bit Error vs. Frequency
(Only Major States are Shown)
2.4
3
2
2
1.6
BIT ERROR (dB)
BIT ERROR (dB)
4 dB
8 dB
16 dB
35
-20
-50
40
Bit Error vs. Attenuation State
1.2
0.8
0.4
0
1
0
-1
-2
-0.4
-0.8
30
(Only Major States are Shown)
0
5
15
20
25
FREQUENCY (GHz)
Output Return Loss
(Only Major States are Shown)
0
10
IL
1 dB
2 dB
Input Return Loss
-50
5
Attenuators - Digital - SMT
INSERTION LOSS (dB)
-2
NORMALIZED ATTENUATION (dB)
0
0
4
8
12
16
20
24
ATTENUATION STATE (dB)
5.0 GHz
10 GHz
18 GHz
26.5GHz
28
32
33GHz
-3
0
5
10
IL
1 dB
2 dB
15
20
25
FREQUENCY (GHz)
4 dB
8 dB
16 dB
30
35
40
31 dB
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
2
HMC1018ALP4E
v01.1116
1.0 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.1 - 30 GHz
Step Attenuation vs. Attenuation State
0.1 - 18 GHz
Relative Phase vs. Frequency
(Only Major States are Shown)
120
1.6
STEP ATTENUATION (dB)
RELATIVE PHASE (deg)
80
60
40
20
0
-20
0
5
10
15
20
25
FREQUENCY (GHz)
IL
1 dB
2 dB
30
35
4 dB
8 dB
16 dB
4
8
12
16
20
24
ATTENUATION STATE (dB)
10 GHz
28
32
18 GHz
Input Power for 0.1 dB Compression
28
P0.1dB (dBm)
0.8
0.4
24
20
16
12
0
8
0
4
8
12
16
20
24
ATTENUATION STATE (dB)
28
32
0.01
30GHz
10
25C
100
85C
(Minimum Attenuation State)
50
IP3 (dBm)
50
30
1
FREQUENCY (GHz)
Input IP3 vs. Temperature
60
40
0.1
-40C
60
20
0
5 GHz
1.2
Input IP3 Over Major Attenuation States
IP3 (dBm)
0.4
32
26.5 GHz
40
30
0
0.1
I.L
1 dB
2 dB
1
10
4 dB
8dB
16 dB
FREQUENCY (GHz)
3
0.8
31 dB
1.6
-0.4
1.2
0
40
Step Attenuation vs. Attenuation State
18 - 30 GHz
STEP ATTENUATION (dB)
Attenuators - Digital - SMT
100
100
31 dB
20
0
0.1
-40C
1
10
25C
100
+85C
FREQUENCY (GHz)
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
HMC1018ALP4E
v01.1116
1.0 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.1 - 30 GHz
The HMC1018ALP4E contains a 3-wire SPI compatible digital interface (SERIN, CLK, LE). The serial control interface
is activated when S/A is kept high. The 5-bit serial word must be loaded MSB first as a 6-bit word with the first
bit ignored. The positive-edge sensitive CLK and LE requires clean transitions. If mechanical switches are used,
sufficient debouncing should be provided. When LE is high, 5-bit data in the serial input register is transferred to the
attenuator. When LE is high CLK is masked to prevent data transition during output loading.
For all modes of operations, the state will stay constant while LE is kept low.
Serial Mode Truth Table
Control Voltage Input
P4
16 dB
P3
8 dB
P2
4 dB
P1
2 dB
P0
1 dB
Attenuation
State
RF1 - RF2
High
High
High
High
High
Reference I.L.
High
High
High
High
Low
1 dB
High
High
High
Low
High
2 dB
High
High
Low
High
High
4 dB
High
Low
High
High
High
8 dB
Low
High
High
High
High
16 dB
Low
Low
Low
Low
Low
31 dB
Any combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
Parameter
Typ.
Min. serial period, tSCK
100 ns
Control set-up time, tCS
20 ns
Control hold-time, tCH
20 ns
LE setup-time, tLN
10 ns
Min. LE pulse width, tLEW
10 ns
Min LE pulse spacing, tLES
630 ns
Serial clock hold-time from LE, tCKN
10 ns
Hold Time, tPH.
0 ns
Latch Enable Minimum Width, tLEN
10 ns
Setup Time, tPS
2 ns
Attenuators - Digital - SMT
Serial Control Interface
Asynchronous Mode
The HMC1018ALP4E can be switched to an asynchronous mode to change the attenuation state rapidly to one of four
predefined states. The logic state of ASM1-ASM2 determines one of the four attenuation states in the asynchronous
mode per truth table. The asynchronous mode works either directly or latched. To activate the direct-asynchronousmode, S/A needs to be at logic low and LE needs to be at logic high. In the direct-asynchronous-mode, any change in
the logic state of ASM1-ASM2 directly affects the attenuation state. In the latched-asynchronous-mode, the attenuation
state changes per the asynchronous mode truth table when S/A is at logic low and LE is pulsed per the timing diagram.
The attenuation stays constant (latched) as long as LE stays low. In the asynchronous mode, the inputs SERIN and
CLK do not affect the attenuation state.
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
4
HMC1018ALP4E
v01.1116
1.0 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.1 - 30 GHz
Attenuators - Digital - SMT
Timing Diagram (Latched Asynchronous Mode)
5
Asynchronous Mode Truth Table
ASM1
ASM2
Attenuation State RF1-RF2
High
High
Reference I.L.
High
Low
3 dB
Low
High
28 dB
Low
Low
31 dB
PUP Truth Table
Power-Up States
If LE is set to logic LOW at power-up, the logic state
of PUP determines the power-up state of the part per
PUP truth table. If the LE is set to logic HIGH at powerup, the logic state of ASM1-ASM2 determines the
power-up state of the part per truth table for the asynchronous mode. The attenuator latches in the desired
power-up state approximately 200 ms after power-up.
PUP
Attenuation State
High
Reference I.L.
Low
31 dB
Note: The logic state of ASM1-ASM2 determines the
power-up state of the part per truth table for the asynchronous mode when LE is high at power-up.
Control Voltage
Bias Voltages & Currents
+5V @ 0.06 mA
State
Bias Condition
Vdd1
+5V @ 4.5 mA
Low
0 to 0.8V @ 1 µA
Vss
-5V @ 5.5 mA
High
2 to 5V @ 1 µA
Vdd
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
HMC1018ALP4E
v01.1116
1.0 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.1 - 30 GHz
Absolute Maximum Ratings
+27 dBm
Control Voltage (CLK, SERIN, LE,
PUP, ASM1, ASM2, S/A)
Vdd + 0.5V
Vdd, Vdd1
+7 Vdc
Vss
-7 Vdc
Channel Temperature
150 °C
Continuous Pdiss (T = 85 oC)
(derate 6.9 mW/oC above 85 oC)
0.453 W
Thermal Resistance
143.5 °C/W
Storage Temperature
-65 to + 150 °C
Operating Temperature
-40 to +85 °C
ESD Sensitivity (HBM)
Class 1A
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Attenuators - Digital - SMT
RF Input Power (0.1 to 30.0 GHz)
Outline Drawing
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
HMC1018ALP4E
RoHS-compliant Low Stress Injection Molded Plastic
100% matte Sn
MSL Rating
MSL3
[1]
Package Marking [2]
1018A
XXXX
[1] Max peak reflow temperature of 260 °C
[2] 4-Digit lot number XXXX
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
6
HMC1018ALP4E
v01.1116
1.0 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.1 - 30 GHz
Attenuators - Digital - SMT
Pin Descriptions
7
Pad Number
Function
Description
1
2
SERIN
LE
See truth table, control voltage
table and timing diagram.
3
Vss
Negative Bias -5V
4, 15
GND
These pins and package bottom
must be connected to RF/DC ground.
6-13, 16
N/C
The pins are not connected internally; however, all data
shown herein was measured with these pins connected to
RF/DC ground externally.
5, 14
RF1, RF2
These pins are DC coupled and matched to 50 Ohms. Blocking
capacitors are required if RF line potential is not equal to 0V.
17
Vdd1
Positive Bias +5V
18
SEROUT
Serial input data delayed by 6 clock cycles.
19
21
22
23
24
PUP
ASM1
ASM2
S/A
CLK
See truth table, control voltage
table and timing diagram.
20
Vdd
Serial Controller Bias +5V
Interface Schematic
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
HMC1018ALP4E
v01.1116
1.0 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.1 - 30 GHz
Attenuators - Digital - SMT
Application Circuit
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
8
HMC1018ALP4E
v01.1116
1.0 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.1 - 30 GHz
Attenuators - Digital - SMT
SERIN
Evaluation PCB
NC
S/R NC
PUP
SEROUT
C4
RF1
J4
C2
C1
J1
VDD1
J3
C5 C6
C3
J6
NC
VDD
LE
CLK
VSS
NC
J5
J2
U1
RF2
600-00196-00-2
THRU CAL
List of Materials for Evaluation PCB EV1HMC1018ALP4 [1]
Item
Description
J1, J2
2.9 mm PC Mount RF Connector
J3, J4, J6
DC Connector
J5
2mm DC Header
C1-C3
100 pF Capacitor, 0402 Pkg.
C4-C6
1000 pF Capacitor, 0402 Pkg.
U1
HMC1018ALP4E Digital Attenuator
PCB [2]
600-00196-00-2 Evaluation Board
[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 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 Analog Devices upon
request.
[2] Circuit Board Material: Rogers 4350
9
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
HMC1018ALP4E
v01.1116
1.0 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.1 - 30 GHz
Attenuators - Digital - SMT
Notes:
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
10
