MA-COM MAAD-007078

MAAD-007078-000100
Digital Attenuator
31.0 dB, 5-Bit, TTL Driver, DC-3.0 GHz
Functional Schematic
Features
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Rev. V4
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
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
Ordering Information
Part Number
Package
MAAD-007078-000100
Bulk Packaging
MAAD-007078-0001TR
1000 piece reel
MAAD-007078-0001TB
Sample Test Board
Note: Reference Application Note M513 for reel size
information.
1.
2.
* Restrictions on Hazardous Substances, European Union
Directive 2002/95/EC.
3.
Pin No.
Function
Pin No.
Function
1
GND
17
NC
2
C16
18
NC
3
C8
19
Vcc
4
C4
20
NC
5
C2
21
CP2
6
C1
22
NC
7
GND
23
CP1
8
NC
24
NC
9
NC
25
Vee2
10
NC1
26
GND
11
GND
27
RF2
12
RF1
28
GND
13
GND
29
NC1
14
NC
30
Vee2
15
NC
31
NC
16
NC
32
Vcc
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)
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-007078-000100
Digital Attenuator
31.0 dB, 5-Bit, TTL Driver, DC-3.0 GHz
Rev. V4
Electrical Specifications: TA = 25°C, Z0 = 50Ω
Parameter
Test Conditions
Frequency
Units
Min
Typ
Max
Insertion Loss
—
DC - 3.0 GHz
dB
—
3.5
3.8
Attenuation Accuracy
Individual Bits 1-2-4-8-16 dB
Any Combination of Bits 1 to 31 dB
DC - 3.0 GHz
DC - 3.0 GHz
dB
dB
—
—
—
—
±(.3 +5% of atten setting)
±(.5 +7% of atten setting)
VSWR
Full Range
DC - 3.0 GHz
Ratio
—
2.0:1
2.2:1
Switching Speed
50% Cntl to 90%/10% RF
10% to 90% or 90% to 10%
—
—
ns
ns
—
—
75
20
150
50
1 dB Compression
—
—
50 MHz
0.5 - 3.0 GHz
dBm
dBm
—
—
+21
+24
—
—
Input IP3
Two-tone inputs up to +5 dBm
50 MHz
0.5-3.0 GHz
dB
dB
—
—
+35
+48
—
—
Vcc
—
—
V
4.75
5.0
5.25
VIL
VIH
LOW-level input voltage
HIGH-level input voltage
—
—
V
V
0.0
2.0
—
—
0.8
5.0
lin (Input Leakage Current)
Vin = VCC or GND
—
uA
-1.0
—
1.0
Vcc min to max,
Logic “0” or “1”
—
mA
—
6
10
Turn-on Current5
For guaranteed start-up
—
mA
—
—
125
ΔIcc
(Additional Supply Current
Per TTL Input Pin)
VCC = Max, Vcntrl = VCC - 2.1 V
—
mA
—
—
1.0
Switching Noise
Generated from
DC-DC Converter with
recommended capacitors
3.5 MHz
dBm
—
-93
—
Thermal Resistance θjc
—
—
°C/W
—
35
—
Icc
4
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
Absolute Maximum
Max. Input Power
0.05 GHz
0.5 - 3.0 GHz
+27 dBm
+34 dBm
VCC
-0.5V ≤ VCC ≤ +6.0V
Vin8
-0.5V ≤ Vin ≤ VCC + 0.5V
Operating Temperature
-40ºC to +85ºC
Storage Temperature
-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.
9. Application Note S2083 is available on line at www.macom.com
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-007078-000100
Digital Attenuator
31.0 dB, 5-Bit, TTL Driver, DC-3.0 GHz
Rev. V4
Handling Procedures
Truth Table (Digital Attenuator)
Please observe the following precautions to avoid
damage:
C16
C8
C4
C2
C1
Attenuation
0
0
0
0
0
Loss, Reference
Static Sensitivity
0
0
0
0
1
1.0 dB
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.
0
0
0
1
0
2.0 dB
0
0
1
0
0
4.0 dB
0
1
0
0
0
8.0 dB
1
0
0
0
0
16.0 dB
1
1
1
1
1
31.0 dB
0 = TTL Low; 1 = TTL High
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.
Typical Performance Curves
VSWR @ Insertion Loss
Insertion Loss
Inp ut
3.0
2.0
2.00
1.00
1.0
0
1000
2000
3000
0
4000
1000
Fre que ncy (MHz )
2000
3000
4000
3000
4000
Frequency (MHz)
Attenuation Error, 1 dB Bit
Attenuation Error, 2 dB Bit
0.3
0.3
0.2
0.2
Error (dB)
Error (dB)
Out p ut
3.00
V SW R
Loss (dB)
4.0
0.1
0
0.1
0
-0.1
-0.1
0
1000
2000
Fre que ncy (MHz )
3000
4000
0
1000
2000
Fre que ncy (MHz )
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-007078-000100
Digital Attenuator
31.0 dB, 5-Bit, TTL Driver, DC-3.0 GHz
Rev. V4
Typical Performance Curves
Attenuation Error, 8 dB Bit
0.7
0.7
0.5
0.5
Error (dB)
Error (dB)
Attenuation Error, 4 dB Bit
0.3
0.1
0.3
0.1
-0.1
-0.1
0
1000
2000
3000
4000
0
1000
Fre que ncy (MHz )
Attenuation Error, 16 dB Bit
3000
4000
3000
4000
3000
4000
Attenuation Error, Max. Attenuation
1.5
1.5
0.5
0.5
Error (dB)
Error (dB)
2000
Fre que ncy (MHz )
-0.5
-1.5
-0.5
-1.5
0
1000
2000
3000
4000
0
1000
Fre que ncy (MHz )
2000
Fre que ncy (MHz )
VSWR, 1 dB Bit
VSWR, 2 dB Bit
O ut p ut
Inp ut
Inp ut
1.8
Out p ut
1.6
1.6
VSWR
VSWR
1.4
1.4
1.2
1.2
1.0
1.0
0
1000
2000
Fre que ncy (MHz )
3000
4000
0
1000
2000
Fre que ncy (MHz )
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-007078-000100
Digital Attenuator
31.0 dB, 5-Bit, TTL Driver, DC-3.0 GHz
Rev. V4
Typical Performance Curves
VSWR, 4 dB Bit
VSWR, 8 dB Bit
Inp ut
Inp ut
Out p ut
1.6
1.4
1.4
O ut p ut
VSWR
VSWR
1.6
1.2
1.2
1.0
1.0
0
1000
2000
3000
4000
0
1000
Fre que ncy (MHz )
VSWR, 16 dB Bit
3000
4000
VSWR, Maximum Attenuation
Inp ut
Inp ut
Out p ut
1.6
1.6
1.4
1.4
Out p ut
VSWR
VSW R
2000
Fre que ncy (MHz )
1.2
1.2
1.0
0
1000
2000
Frequency (MHz)
3000
4000
1.0
0
1000
2000
3000
4000
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.
MAAD-007078-000100
Digital Attenuator
31.0 dB, 5-Bit, TTL Driver, DC-3.0 GHz
Rev. V4
CSP-1, Lead-Free 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.