MAAD-007078-000100
Digital Attenuator
31.0 dB, 5-Bit, TTL Driver, DC-3.0 GHz
Features
•
•
•
•
•
•
•
•
•
•
•
•
Attenuation: 1.0dB Steps to 31dB
Single Positive Supply
Contains internal DC to DC converter
Low DC Power Consumption
Small Footprint, JEDEC Package
Integral TTL Driver
50 ohm Impedance
Lead-Free CSP-1 Package
100% Matte Tin Plating over Copper
Halogen-Free “Green” Mold Compound
260°C Reflow Compatible
RoHS* Compliant Version of AT90-1263
Rev. V4
Functional Schematic
Description
M/A-COM's MAAD-007078-000100 is a GaAs FET
5-bit digital attenuator with integral TTL driver. Step
size is 1.0 dB providing 31 dB total attenuation
range. This device is in an FQFP-N plastic surface
mount package. The MAAD-007078-000100 is
ideally suited for use where accuracy, fast speed,
very low power consumption and low costs are
required. For dual supply designs without DC-DC
converter noise, use MAATCC0010.
Pin Configuration
Pin No.
1
2
3
4
5
6
Function
GND
C16
C8
C4
C2
C1
GND
NC
NC
NC
1
GND
RF1
GND
NC
NC
NC
Pin No.
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Function
NC
NC
Vcc
NC
CP2
NC
CP1
NC
Vee
2
GND
RF2
GND
NC
1
Vee
2
NC
Vcc
Ordering Information
Part Number
MAAD-007078-000100
MAAD-007078-0001TR
MAAD-007078-0001TB
7
8
Package
Bulk Packaging
1000 piece reel
Sample Test Board
9
10
11
12
13
14
15
16
1.
2.
Note: Reference Application Note M513 for reel size
information.
* Restrictions on Hazardous Substances, European Union
Directive 2002/95/EC.
1
3.
Pins 10 & 29 must be isolated
The negative voltage Vee is produced internally and
requires a 0.1µF cap to GND. Generated noise is typical of
switching DC-DC Converters.
The exposed pad centered on the package bottom must be
connected to RF and DC ground. (For PQFN Packages)
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-007078-000100
Digital Attenuator
31.0 dB, 5-Bit, TTL Driver, DC-3.0 GHz
Electrical Specifications: T
A
= 25°C, Z
0
= 50Ω
Parameter
Insertion Loss
Attenuation Accuracy
VSWR
Switching Speed
1 dB Compression
Input IP
3
Vcc
V
IL
V
IH
lin (Input Leakage Current)
Icc
4
Turn-on Current
5
ΔIcc
(Additional Supply Current
Per TTL Input Pin)
Switching Noise
Rev. V4
Test Conditions
—
Individual Bits 1-2-4-8-16 dB
Any Combination of Bits 1 to 31 dB
Full Range
50% Cntl to 90%/10% RF
10% to 90% or 90% to 10%
—
—
Two-tone inputs up to +5 dBm
—
LOW-level input voltage
HIGH-level input voltage
Vin = V
CC
or GND
Vcc min to max,
Logic “0” or “1”
For guaranteed start-up
V
CC
= Max, Vcntrl = V
CC
- 2.1 V
Frequency
DC - 3.0 GHz
DC - 3.0 GHz
DC - 3.0 GHz
DC - 3.0 GHz
—
—
50 MHz
0.5 - 3.0 GHz
50 MHz
0.5-3.0 GHz
—
—
—
—
—
—
—
Units
dB
dB
dB
Ratio
ns
ns
dBm
dBm
dB
dB
V
V
V
uA
mA
mA
mA
Min
—
—
—
—
—
—
—
—
—
—
4.75
0.0
2.0
-1.0
—
—
—
Typ
3.5
—
—
2.0:1
75
20
+21
+24
+35
+48
5.0
—
—
—
6
—
—
Max
3.8
±(.3 +5% of atten setting)
±(.5 +7% of atten setting)
2.2:1
150
50
—
—
—
—
5.25
0.8
5.0
1.0
10
125
1.0
Generated from
DC-DC Converter with
recommended capacitors
—
3.5 MHz
dBm
—
-93
—
Thermal Resistance
θjc
—
°C/W
—
35
—
4. During turn-on, the device requires an initial start up current (Icc)
specified as “Turn-on Current”. Once operational, Icc will drop to the
specified levels.
5. The DC-DC converter is guaranteed to start in 100 µs as long as the
power supplies have the maximum turn-on current available for start
up.
Recommended PCB Configuration
9
Absolute Maximum Ratings
6,7
Parameter
Max. Input Power
0.05 GHz
0.5 - 3.0 GHz
V
CC
Vin
8
Operating Temperature
Storage Temperature
Absolute Maximum
+27 dBm
+34 dBm
-0.5V
≤
V
CC
≤
+6.0V
-0.5V
≤
Vin
≤
V
CC
+ 0.5V
-40ºC to +85ºC
-65ºC to +125ºC
6. Exceeding any one or combination of these limits may cause
permanent damage to this device.
7. M/A-COM does not recommend sustained operation near
these survivability limits.
8. Standard CMOS TTL interface, latch-up will occur if logic
signal is applied prior to power supply.
2
9. Application Note S2083 is available on line at www.macom.com
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-007078-000100
Digital Attenuator
31.0 dB, 5-Bit, TTL Driver, DC-3.0 GHz
Handling Procedures
Please observe the following precautions to avoid
damage:
Rev. V4
Truth Table (Digital Attenuator)
C16
0
0
0
0
0
1
1
C8
0
0
0
0
1
0
1
C4
0
0
0
1
0
0
1
C2
0
0
1
0
0
0
1
C1
0
1
0
0
0
0
1
Attenuation
Loss, Reference
1.0 dB
2.0 dB
4.0 dB
8.0 dB
16.0 dB
31.0 dB
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.
0 = TTL Low; 1 = TTL High
Typical Performance Curves
Insertion Loss
4.0
VSWR @ Insertion Loss
Inp ut
3.00
Out p ut
Loss (dB)
3.0
V SW R
2.00
2.0
1.0
0
1000
2000
3000
4000
1.00
0
1000
2000
3000
4000
Fre que ncy (MHz )
Frequency (MHz)
Attenuation Error, 2 dB Bit
Attenuation Error, 1 dB Bit
0.3
0.3
0.2
0.2
Error (dB)
0.1
Error (dB)
0
1000
2000
3000
4000
0.1
0
0
-0.1
-0.1
0
1000
2000
3000
4000
Fre que ncy (MHz )
3
Fre que ncy (MHz )
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-007078-000100
Digital Attenuator
31.0 dB, 5-Bit, TTL Driver, DC-3.0 GHz
Typical Performance Curves
Attenuation Error, 4 dB Bit
0.7
Rev. V4
Attenuation Error, 8 dB Bit
0.7
0.5
0.5
Error (dB)
Error (dB)
0
1000
2000
3000
4000
0.3
0.3
0.1
0.1
-0.1
-0.1
0
1000
2000
3000
4000
Fre que ncy (MHz )
Fre que ncy (MHz )
Attenuation Error, 16 dB Bit
Attenuation Error, Max. Attenuation
1.5
1.5
Error (dB)
-0.5
Error (dB)
0
1000
2000
3000
4000
0.5
0.5
-0.5
-1.5
-1.5
0
1000
2000
3000
4000
Fre que ncy (MHz )
Fre que ncy (MHz )
VSWR, 1 dB Bit
O ut p ut
1.8
Inp ut
VSWR, 2 dB Bit
Inp ut
1.6
Out p ut
1.6
1.4
VSWR
1.4
VSWR
0
1000
2000
3000
4000
1.2
1.2
1.0
1.0
0
1000
2000
3000
4000
Fre que ncy (MHz )
4
Fre que ncy (MHz )
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-007078-000100
Digital Attenuator
31.0 dB, 5-Bit, TTL Driver, DC-3.0 GHz
Typical Performance Curves
VSWR, 4 dB Bit
VSWR, 8 dB Bit
Rev. V4
Inp ut
1.6
Out p ut
Inp ut
1.6
O ut p ut
1.4
1.4
VSWR
1.2
VSWR
1.2
1.0
0
1000
2000
3000
4000
1.0
0
1000
2000
3000
4000
Fre que ncy (MHz )
Fre que ncy (MHz )
VSWR, 16 dB Bit
VSWR, Maximum Attenuation
Inp ut
1.6
Out p ut
1.6
Inp ut
Out p ut
1.4
1.4
VSW R
1.2
VSWR
1.2
1.0
0
1000
2000
3000
4000
1.0
0
1000
2000
3000
4000
Frequency (MHz)
Fre que ncy (MHz)
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.
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