MAADSS0008
Digital Attenuator, 1-Bit, 15 dB
DC - 2.0 GHz
Features
Rev. V2
Functional Schematic
Single 15-dB Step
Low Loss, 0.3 dB Typical @ 900 MHz
2.5 to 5.0 Volt Operation
Tape and Reel Packaging Available
Lead-Free SOT-25 Package
100% Matte Tin Plating over Copper
Halogen-Free “Green” Mold Compound
260°C Reflow Compatible
RoHS* Compliant Version of AT-267
5
4
Description
M/A-COM’s MAADSS0008 is a 1-bit, 15-dB step
GaAs MMIC digital attenuator in a lead-free SOT-25,
5 lead surface mount plastic package.
The
MAADSS0008 is ideally suited for use where high
accuracy, very low power consumption and low
intermodulation products are required.
Typical applications include wireless handsets, base
stations, wireless LAN equipment, GPS receivers
and any RF applications with automatic gain/level
control circuits.
1
2
3
Pin Configuration
Pin No.
Function
Pin No.
Function
1
RF1
4
V1
2
Ground
5
V2
3
RF2
The MAADSS0008 is fabricated as a monolithic
GaAs integrated circuit using a mature PHEMT
process. The process features full chip passivation
for performance and reliability.
Absolute Maximum Ratings 2,3
Ordering Information 1
Part Number
Package
Parameter
Absolute Maximum
MAADSS0008TR
1000 piece reel
Input Power
+21 dBm
MAADSS0008TR-3000
3000 piece reel
MAADSS0008SMB
Sample Board
1. Reference Application Note M513 for reel size information.
Control Voltage
VC 8V
Operating Temperature
-40°C to +85°C
Storage Temperature
-65°C to +150°C
2. Exceeding any one or combination of these limits may cause
permanent damage to this device.
3. M/A-COM does not recommend sustained operation near
these survivability limits.
* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.
1
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
MAADSS0008
Digital Attenuator, 1-Bit, 15 dB
DC - 2.0 GHz
Rev. V2
Electrical Specifications4: TA = 25°C, VC = +2.5 Volts, Z0 = 50 Ω
Parameter
Test Conditions
Units
Min
Typ
Max
Insertion Loss
(Reference State)
1.0 GHz
2.0 GHz
dB
dB
—
—
0.3
0.4
0.4
0.5
Attenuation
1.0 GHz
2.0 GHz
dB
dB
14.6
14.4
15.1
14.9
15.6
15.4
VSWR
1.0 GHz
2.0 GHz
Ratio
Ratio
—
—
1.2:1
1.3:1
—
—
Input IP3
1.0 GHz
Insertion Loss State
Attenuation State
dBm
dBm
40
40
50
50
—
—
P1dB
1.0 GHz
Insertion Loss State
Attenuation State
dBm
dBm
24
20
26
23
—
—
Control Current
—
µA
—
—
10
Trise, Tfall
10% to 90% RF, 90% to 10% RF
nS
—
29
—
Ton, Toff
50% Control to 90% RF,
50% Control to 10% RF
nS
—
50
—
Transients
In-band
mV
—
10
—
4. For positive voltage control, external DC blocking capacitors are required on all RF ports (pins 1, 2 and 3).
Lead-Free SOT-25†
Positive Control Voltage Schematic
5
1
† Reference Application Note M538 for lead-free solder reflow
recommendations.
39 pF
4
2
39 pF
3
39 pF
Truth Table 5,6
Mode
(Control)
V1
V2
Attenuation
Positive 5
0 ± 0.2V
+2.5V to +5V
+2.5V to +5V
0 ± 0.2V
15 dB
Reference State
Negative 6
0 ± 0.2V
-2.5V to -5V
Reference State
15 dB
-2.5V to -5V
0 ± 0.2V
5. External DC blocking capacitors are required as noted.
6. If negative control is used, DC blocking capacitors are not
required on RF ports and ground.
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
MAADSS0008
Digital Attenuator, 1-Bit, 15 dB
DC - 2.0 GHz
Rev. V2
Typical Performance Curves
Insertion Loss with Negative Control
Insertion Loss with Positive Control
Attenuation with Negative Control
Attenuation with Positive Control
VSWR, 0 and 15 dB States with Negative Control at
+25°C
VSWR, 0 and 15 dB States with Positive Control at
+25°C
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
MAADSS0008
Digital Attenuator, 1-Bit, 15 dB
DC - 2.0 GHz
Rev. V2
M/A-COM Technology Solutions Inc. All rights reserved.
Information in this document is provided in connection with M/A-COM Technology Solutions Inc ("MACOM")
products. These materials are provided by MACOM as a service to its customers and may be used for
informational purposes only. Except as provided in MACOM's Terms and Conditions of Sale for such products or
in any separate agreement related to this document, MACOM assumes no liability whatsoever. MACOM
assumes no responsibility for errors or omissions in these materials. MACOM may make changes to
specifications and product descriptions at any time, without notice. MACOM makes no commitment to update
the information and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future
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to any intellectual property rights is granted by this document.
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WHICH MAY RESULT FROM THE USE OF THESE MATERIALS.
4
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customers using or selling MACOM products for use in such applications do so at their own risk and agree to
fully indemnify MACOM for any damages resulting from such improper use or sale.
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