-bit digital attenuator with integral TTL driver. Step
size is 0.5 dB providing a 15.5 dB total attenuation
range. This device is in an PQFN plastic surface
mount package. MAAD-007081-000100 is ideally
suited for use where accuracy, fast speed, very low
power consumption and low costs are required.
Pin Configuration
1
Pin No.
1
2
3
4
Function
GND
C8
C4
C2
C1
C0.5
GND
NC
NC
NC
2
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
NC
NC
NC
NC
NC
NC
NC
GND
RF2
GND
NC
2
-Vee
NC
+Vcc
Ordering Information
Part Number
MAAD-007081-000100
MAAD-007081-0001TR
MAAD-007081-0001TB
5
6
Package
Bulk Packaging
1000 piece reel
Sample Test Board
7
8
9
10
11
Note: Reference Application Note M513 for reel size
information.
12
13
14
15
16
1
* Restrictions on Hazardous Substances, European Union Di-
rective 2002/95/EC.
1.
2.
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
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit
www.macom.com
for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
MAAD-007081
Digital Attenuator
15.5 dB, 5-Bit, TTL Driver, DC-3.5 GHz
Electrical Specifications: T
A
= 25°C, Z
0
= 50
Parameter
Insertion Loss
Attenuation Accuracy
Rev. V4
Test Conditions
—
Individual Bits 0.5-1-4-8 dB
Individual Bit 2 dB
Any Combination of Bits
1 to 15.5 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
Vcntrl = V
CC
or GND
V
CC
= Max, Vcntrl = V
CC
- 2.1 V
Frequency
DC - 3.5 GHz
DC - 3.5 GHz
DC - 3.5 GHz
DC - 3.5 GHz
DC - 3.5 GHz
—
—
50 MHz
0.5 - 3.5 GHz
50 MHz
0.5-3.5 GHz
—
—
—
—
—
—
—
Units
dB
dB
dB
dB
Ratio
ns
ns
dBm
dBm
dB
dB
V
V
V
V
uA
uA
mA
Min
—
—
—
—
—
—
—
—
—
—
—
4.75
-8.0
0.0
2.0
-1.0
—
—
Typ
2.8
—
—
—
1.6:1
75
20
+21
+29
+35
+48
5.0
-5.0
—
—
—
250
—
Max
3.2
±(.3 +5% of atten setting)
±(.4 +10% of atten setting)
±(.5 +7% of atten setting)
1.8:1
150
50
—
—
—
—
5.25
-4.75
0.8
5.0
1.0
400
1.0
VSWR
Switching Speed
1 dB Compression
Input IP
3
Vcc
Vee
V
IL
V
IH
lin (Input Leakage Current)
Icc
(Quiescent Supply Current)
ΔIcc
(Additional Supply Current
Per TTL Input Pin)
I
EE
Thermal Resistance
θjc
V
EE
min to max, Vin = V
IL
or V
IH
—
—
—
mA
°C/W
-1.0
—
-0.2
15
—
—
2
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit
www.macom.com
for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
MAAD-007081
Digital Attenuator
15.5 dB, 5-Bit, TTL Driver, DC-3.5 GHz
Absolute Maximum Ratings
3,4
Parameter
Max. Input Power
0.05 GHz
0.5 - 3.5 GHz
V
CC
V
EE
V
CC
- V
EE
Vin
5
Operating Temperature
Storage Temperature
3.
4.
5.
Rev. V4
Recommended PCB Configuration
6
Absolute Maximum
+27 dBm
+34 dBm
-0.5V ≤ V
CC
≤ +7.0V
-8.5V ≤ V
EE
≤ +0.5V
-0.5V ≤ V
CC
- V
EE
≤ 14.5V
-0.5V ≤ Vin ≤ V
CC
+ 0.5V
-40ºC to +85ºC
-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.
Standard CMOS TTL interface, latch-up will occur if logic
signal is applied prior to power supply.
6.
Application Note C2083 is available on line at
www.macom.com
Handling Procedures
Please observe the following precautions to avoid
damage:
Truth Table (Digital Attenuator)
C8
0
0
0
0
0
1
1
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.
C4
0
0
0
0
1
0
1
C2
0
0
0
1
0
0
1
C1
0
0
1
0
0
0
1
C0.5
0
1
0
0
0
0
1
Attenuation
Loss, Reference
0.5 dB
1.0 dB
2.0 dB
4.0 dB
8.0 dB
15.5 dB
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
3
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit
www.macom.com
for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
MAAD-007081
Digital Attenuator
15.5 dB, 5-Bit, TTL Driver, DC-3.5 GHz
Typical Performance Curves
Insertion Loss
VSWR @ Insertion Loss
Rev. V4
3.0
1.75
Inp ut
Out p ut
Loss (dB)
2.5
VSWR Ratio
0
500
1000
1500
2000
2500
3000
3500
1.50
2.0
1.5
1.0
1.25
1.00
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
Fre que ncy (MHz )
Attenuation Error, 0.5 dB Bit
1.0
Attenuation Error, 1 dB Bit
1.0
Error (dB)
0.0
Error (dB)
0.5
0.5
0.0
-0.5
-0.5
-1.0
0
500
1000
1500
2000
2500
3000
3500
-1.0
0
500
1000
1500
2000
2500
3000
3500
Fre que ncy (MHz )
Fre que ncy (MHz )
Attenuation Error, 2 dB Bit
1.0
Attenuation Error, 4 dB Bit
1.0
Error (dB)
Error (dB)
0
500
1000
1500
2000
2500
3000
3500
0.5
0.5
0.0
0.0
-0.5
-1.0
-0.5
0
500
1000
1500
2000
2500
3000
3500
Fre que ncy (MHz )
4
Fre que ncy (MHz )
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit
www.macom.com
for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
MAAD-007081
Digital Attenuator
15.5 dB, 5-Bit, TTL Driver, DC-3.5 GHz
Rev. V4
Typical Performance Curves
Attenuation Error, 8 dB Bit
Attenuation Error, Max. Attenuation
1.0
3.0
2.0
Error (dB)
0.5
Error (dB)
1.0
0.0
0.0
-0.5
0
500
1000
1500
2000
2500
3000
3500
-1.0
0
500
1000
1500
2000
2500
3000
3500
Fre que ncy (MHz )
Fre que ncy (MHz )
VSWR, 0.5 dB Bit
Out p ut
VSWR, 1 dB Bit
Inp ut
1.6
Out p ut
Inp ut
1.6
VSWR Ratio
VSWR Ratio
1.4
1.4
1.2
1.2
1.0
0
500
1000
1500
2000
2500
3000
3500
1.0
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
Fre que ncy (MHz )
5
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit
www.macom.com
for additional data sheets and product information.
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