MA-COM MAAD-009171

MAAD-009171-000100
Digital Attenuator, Constant Phase
32 dB, 2-Bit, TTL Driver, DC-4.0 GHz
Functional Schematic
Features
•
•
•
•
•
•
•
•
Rev. V1
Attenuation: Two 16 dB bits
Minimal Phase Variation over Attenuation Range
Low DC Power Consumption
Small Footprint, PQFN Package
Integral TTL Driver
50 ohm Impedance
Test Boards are Available
RoHS* Compliant
Description
M/A-COM's MAAD-009171-000100 is a GaAs FET
2-bit digital attenuator with two 16 dB steps and 32
dB total attenuation with integral TTL driver. This
design has been optimized to minimize phase
variation over the full attenuation range. This
attenuator is in an RoHS compliant PQFN plastic
surface mount package. MAAD-009171-000100 is
ideally suited for use where accuracy, fast switching,
very low power consumption and low
intermodulation products are required.
Typical
applications include dynamic range setting in
precision receiver circuits and other gain/leveling
control circuits.
Pin Configuration1
Ordering Information
Pin No.
Function
Pin No.
Function
1
GND
17
NC
2
GND
C8
18
NC
3
C4
C2
19
NC
4
C2
C1
20
NC
5
C1
GND
21
NC
6
C0.5
GND
22
NC
Part Number
Package
7
GND
23
NC
MAAD-009171-000100
Bulk Packaging
8
NC
24
NC
MAAD-009171-0001TR
1000 piece reel
9
NC
25
NC
2
26
GND
MAAD-009171-0001TB
Sample Test Board
Note: Reference Application Note M513 for reel size
information.
* Restrictions on Hazardous Substances, European Union
Directive 2002/95/EC.
1.
2.
10
NC
11
GND
27
RF2
12
RF1
28
GND
13
GND
29
NC2
14
NC
30
-Vee
Vee
15
NC
31
NC
16
NC
32
+Vcc
The exposed pad centered on the package bottom must be
connected to RF and DC ground. (For PQFN Packages)
Pins 10 & 29 must be isolated
1
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
• India Tel: +91.80.4155721
• China Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MAAD-009171-000100
Digital Attenuator, Constant Phase
32 dB, 2-Bit, TTL Driver, DC-4.0 GHz
Rev. V1
Electrical Specifications: TA = 25°C, Z0 = 50Ω, VCC = +5.0V, VEE = -5.0V
Parameter
Test Conditions
Frequency
Units
Min
Typ
Max
—
—
dBm
—
—
+20
Reference Insertion Loss
—
DC - 2.0 GHz
2.0 - 4.0 GHz
dB
dB
—
—
—
—
1.9
2.2
Attenuation Accuracy4
16 dB Bit (C1 Control)
32 dB Attenuation
DC - 4.0 GHz
DC - 4.0 GHz
dB
dB
15.5
30.8
—
—
16.8
34.0
Phase Accuracy
Relative to Reference Loss State
16 dB Bit (C1 Control)
16 dB Bit (C1 Control)
32 dB Attenuation
32 dB Attenuation
DC - 2.0 GHz
2.0 - 4.0 GHz
DC - 2.0 GHz
2.0 - 4.0 GHz
deg
deg
deg
deg
—
—
—
—
—
—
—
—
±4º
±5º
±8º
±9º
VSWR
Reference Loss,
16 dB Bit (C1 Control),
or 32 dB Attenuation
DC - 4.0 GHz
Ratio
—
—
1.8:1
1.3 V Cntl to 90% RF
1.3 V Cntl to 10% RF
10% RF to 90% RF
90% RF to 10% RF
—
—
__
__
ns
ns
ns
ns
—
—
—
—
42
30
19
16
—
—
—
—
1 dB Compression5
Reference State
Reference State
0.05 GHz
0.5 - 4.0 GHz
dBm
dBm
—
—
>+26
>+26
—
—
Input IP3
Two-tone inputs
up to +5 dBm
0.05-4.0 GHz
dBm
—
+42
+42
—
Input IP2
Two-tone inputs
up to +5 dBm
0.05-4.0 GHz
dBm
—
+55
+77
—
Vcc
Vee
—
—
—
—
V
V
4.5
-8.0
5.0
-5.0
5.5
-4.5
VIL
VIH
LOW-level input voltage
HIGH-level input voltage
—
—
V
V
0.0
2.0
0.0
5.0
0.8
5.0
lin (Input Leakage Current)
Vin = VCC or GND
—
uA
-1
—
1
Icc
(Quiescent Supply Current)
Vcntrl = VCC or GND
—
uA
—
250
400
ΔIcc
(Additional Supply Current Per
TTL Input Pin)
VCC = Max
Vcntrl = VCC - 2.1 V
—
mA
—
—
1.5
IEE
VEE min to max
Vin = VIL or VIH
—
mA
-1.0
-0.2
—
Thermal Resistance θjc
—
—
°C/W
—
35
—
Operating Power
3
Switching Speed
Ton
Toff
Trise
Tfall
3.
4.
5.
Maximum operating power is specified with the input applied to RF1. If the input is applied to RF2, then maximum operating power is +16 dBm.
This attenuator is guaranteed monotonic.
1 dB Compression was measured up to +26 dBm, which is the absolute maximum rating for this device.
2
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
• India Tel: +91.80.4155721
• China Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MAAD-009171-000100
Digital Attenuator, Constant Phase
32 dB, 2-Bit, TTL Driver, DC-4.0 GHz
Rev. V1
Recommended PCB Configuration10
Absolute Maximum Ratings 6,7
Parameter
Absolute Maximum
8
Max. Input Power
+26 dBm
VCC
-0.5V ≤ VCC ≤ +7.0V
VEE
-8.5V ≤ VEE ≤ +0.5V
VCC - VEE
-0.5V ≤ VCC - VEE ≤ 14.5V
Vin
6.
7.
8.
9.
9
-0.5V ≤ Vin ≤ VCC + 0.5V
Operating Temperature
-40ºC to +85ºC
Storage Temperature
-65ºC to +125ºC
Exceeding any one or combination of these limits may cause
permanent damage to this device.
M/A-COM does not recommend sustained operation near
these survivability limits.
Maximum input power is specified with power applied to
RF1.
Standard CMOS TTL interface, latch-up will occur if logic
signal is applied prior to power supply.
10. Application Note S2083 is available on line at
www.macom.com
Handling Procedures
Please observe the following precautions to avoid
damage:
Static Sensitivity
Gallium Arsenide Integrated Circuits are sensitive
to electrostatic discharge (ESD) and can be
damaged by static electricity. Proper ESD control
techniques should be used when handling these
devices.
Moisture Sensitivity
The MSL rating for this part is defined as Level 2
per IPC/JEDEC J-STD-020. Parts shall be stored
and/or baked as required for MSL Level 2 parts.
Truth Table (Digital Attenuator)11
C2
C1
Attenuation
0
0
Loss, Reference
0
1
16 dB
1
1
32 dB
0 = TTL Low; 1 = TTL High
11. C1 is specified as the control for the 16 dB bit. We show
data for the performance with the C2 control - note that the
power handling is reduced if C2 is used for the 16 dB bit.
The electrical performance of the 16 dB bit controlled by
C2 is not specified.
3
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
• India Tel: +91.80.4155721
• China Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MAAD-009171-000100
Digital Attenuator, Constant Phase
32 dB, 2-Bit, TTL Driver, DC-4.0 GHz
Rev. V1
Typical Performance Curves
Reference Loss vs. Frequency
Attenuation - 16 dB Bit (C1) vs. Frequency
17.0
25ºC
3.0
Reference Loss (dB)
Reference Loss (dB)
3.5
85ºC
2.5
2.0
1.5
1.0
-40ºC
1.0
2.0
25ºC
85ºC
16.6
16.4
16.2
16.0
-40ºC
0.5
0.0
16.8
3.0
4.0
5.0
15.8
6.0
0.0
1.0
2.0
Frequency (GHz)
Attenuation - 16 dB Bit (C2) vs. Frequency
5.0
6.0
35.0
17.0
25ºC
85ºC
16.8
Reference Loss (dB)
Reference Loss (dB)
4.0
Attenuation - 32 dB Attenuation vs. Frequency
17.2
16.6
16.4
-40ºC
16.2
25ºC
34.5
34.0
85ºC
33.5
33.0
-40ºC
32.5
32.0
16.0
0.0
1.0
2.0
3.0
4.0
5.0
0.0
6.0
1.0
2.0
3.0
4.0
5.0
6.0
4.0
5.0
6.0
Frequency (GHz)
Frequency (GHz)
Phase - 16 dB Bit (C1) vs. Frequency
Relative to Reference Loss State
Phase - 16 dB Bit (C2) vs. Frequency
Relative to Reference Loss State
2.0
2.0
-40ºC
-40ºC
0.0
Phase (Degrees)
Phase (Degrees)
3.0
Frequency (GHz)
25ºC
-2.0
-4.0
85ºC
0.0
-2.0
-4.0
85ºC
25ºC
-6.0
-6.0
0.0
1.0
2.0
3.0
Frequency (GHz)
4.0
5.0
6.0
0.0
1.0
2.0
3.0
Frequency (GHz)
4
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
• India Tel: +91.80.4155721
• China Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MAAD-009171-000100
Digital Attenuator, Constant Phase
32 dB, 2-Bit, TTL Driver, DC-4.0 GHz
Rev. V1
Typical Performance Curves
VSWR - Reference State vs. Frequency
Phase - 32 dB Attenuation vs. Frequency
Relative to Reference Loss State
4.0
2.0
1.8
0.0
-40ºC
-2.0
VSWR
Phase (Degrees)
2.0
25ºC
-4.0
-6.0
RF2
RF1
1.4
1.2
85ºC
-8.0
0.0
1.6
1.0
2.0
3.0
4.0
5.0
1.0
6.0
0.0
1.0
2.0
Frequency (GHz)
2.0
2.0
1.8
1.8
1.6
1.6
RF1
RF2
4.0
5.0
6.0
4.0
5.0
6.0
VSWR - 16 dB Bit (C2) vs. Frequency
VSWR
VSWR
VSWR - 16 dB Bit (C1) vs. Frequency
1.4
3.0
Frequency (GHz)
RF2
RF1
1.4
1.2
1.2
1.0
1.0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
0.0
1.0
2.0
3.0
Frequency (GHz)
Frequency (GHz)
VSWR - 32 dB Attenuation vs. Frequency
2.0
VSWR
1.8
1.6
1.4
RF1
RF2
1.2
1.0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
Frequency (GHz)
5
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
• India Tel: +91.80.4155721
• China Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MAAD-009171-000100
Digital Attenuator, Constant Phase
32 dB, 2-Bit, TTL Driver, DC-4.0 GHz
Rev. V1
Typical Performance
Typical Input IP2 and IP3 at Room Temperature12
IP2
Attenuation
IP3
Units
50 MHz
500 MHz
2 GHz
50 MHz
500 MHz
2 GHz
Reference State
55
77
75
42
42
43
dBm
16 dB (C1)
62
78
87
41
41
44
dBm
16 dB (C2)
57
78
77
41
41
44
dBm
32 dB
65
80
90
43
43
53
dBm
12. IP2 and IP3 are measured with two-tone inputs F1 and F2 up to +5 dBm with 1 MHz spacing.
CSP-1, 4 x 6 mm, 32-lead PQFN†
†
Reference Application Note M538 for lead-free solder reflow
recommendations.
6
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
• India Tel: +91.80.4155721
• China Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.