MA-COM MAADSS0008 Digital attenuator, 1-bit, 15 db dc - 2.0 ghz Datasheet

MAADSS0008
Digital Attenuator, 1-Bit, 15 dB
DC - 2.0 GHz
Features
•
•
•
•
•
•
•
•
•
Rev. V1
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
RF Input Port
4
V1
2
Ground
5
V2
3
RF Output Port
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
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 / Fax: 978.366.2266
is considering for development. Performance is based on target specifications, simulated results,
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
and/or prototype measurements. Commitment to develop is not guaranteed.
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Visit www.macomtech.com for additional data sheets and product information.
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.
MAADSS0008
Digital Attenuator, 1-Bit, 15 dB
DC - 2.0 GHz
Rev. V1
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
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 / Fax: 978.366.2266
is considering for development. Performance is based on target specifications, simulated results,
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
and/or prototype measurements. Commitment to develop is not guaranteed.
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Visit www.macomtech.com for additional data sheets and product information.
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.
MAADSS0008
Digital Attenuator, 1-Bit, 15 dB
DC - 2.0 GHz
Rev. V1
Typical Performance Curves
Insertion Loss with Negative Control
+25C
+85C
Insertion Loss with Positive Control
+25C
-40C
1.0
1.0
0.8
0.8
0.6
0.6
0.4
0.4
0.2
-40C
0.2
0.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0.0
0.0
0.5
F requency (G H z)
+25C
1.0
1.5
2.0
2.5
3.0
F re que nc y ( G H z)
Attenuation with Positive Control
Attenuation with Negative Control
+85C
-40C
+25C
17
17
16
16
15
15
14
14
13
13
+85C
-40C
12
12
0.0
0.5
1.0
1.5
2.0
2.5
0.0
3.0
0.5
VSWR, 0 and 15 dB States with Negative Control at
+25°C
0dB
1.0
1.5
2.0
2.5
3.0
F re que nc y ( G H z)
F re que nc y ( G H z)
VSWR, 0 and 15 dB States with Positive Control at
+25°C
15dB
0dB
2.0
2.0
1.8
1.8
1.6
1.6
1.4
1.4
1.2
1.2
1.0
15dB
1.0
0.0
3
+85C
0.5
1.0
1.5
2.0
F re que nc y ( G H z)
2.5
3.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
F re que nc y ( G H z)
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 / Fax: 978.366.2266
is considering for development. Performance is based on target specifications, simulated results,
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
and/or prototype measurements. Commitment to develop is not guaranteed.
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Visit www.macomtech.com for additional data sheets and product information.
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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