MA-COM AT-264-PIN

AT-264
Digital Attenuator, 4-Bit, Single Control
30 dB, 0.5 - 2.0 GHz
Functional Schematic 2,3
Features
•
•
•
•
Rev. V7
Positive Single Control
2-dB Attenuation Steps to 30 dB
Low DC Power Consumption
TSSOP-16 Plastic Package
Vs
16
15
14
13
12
1
11
10
9
Description
M/A-COM’s AT-264 is a 4-bit, 2-dB step GaAs MMIC
digital attenuator in a low cost TSSOP-16 surface
mount plastic package. The AT-264 is ideally suited
for use where high accuracy, very low power
consumption and low intermodulation products are
required. Typical applications include radio, cellular,
wireless LANs, GPS equipment and other gain/level
control circuits.
The AT-264 is fabricated using a mature 1 micron
GaAs MESFET process. The process features full
chip passivation for increased performance and
reliability.
16
1
8
2
3
4
4
5
2
6
7
8
2. Blocking caps are required on all RF ports (39 pF used for
data measurements).
3. Vs = +5 ± 0.2 VDC must be applied at RF1 or RF2 using a
10 KΩ or greater pull-up resistor.
Pin Configuration
Ordering Information1
Pin No.
Function
Pin No.
Function
Part Number
Package
1
Ground
9
RF2
AT-264-PIN
Bulk Packaging
2
Ground
10
Ground
AT-264TR
1000 piece reel
3
VC1
11
Ground
4
VC2
12
Ground
5
VC3
13
Ground
6
VC4
14
Ground
7
Ground
15
Ground
8
Ground
16
RF1
1. Reference Application Note M513 for reel size information.
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.
AT-264
Digital Attenuator, 4-Bit, Single Control
30 dB, 0.5 - 2.0 GHz
Rev. V7
Electrical Specifications4: TA = 25°C, Z0 = 50 Ω, VS = 5 V
Parameter
Test Conditions
Units
Min.
Typ.
Max.
Reference Insertion Loss
0.5 - 1.0 GHz
0.5 - 2.0 GHz
dB
dB
—
—
2.0
2.2
2.4
2.6
Attenuation Accuracy
0.5 - 1.0 GHz
0.5 - 2.0 GHz
VSWR
1.0 - 1.5 GHz
0.5 - 2.0 GHz
Ratio
Ratio
—
—
1.5:1
1.9:1
—
—
Trise, Tfall
10% to 90% RF, 90% to 10% RF
ns
—
200
—
Ton, Toff
50% Control to 90% RF,50% Control to 10% RF
ns
—
200
—
Transients
In Band
mV
—
75
—
1 dB Compression
Input Power, 0.5 GHz
Input Power, 0.9 GHz
dBm
dBm
—
—
25
25
—
—
IP2
0.5 GHz
0.5 - 2.0 GHz
Measured Relative to Input
(for two-tone Input Power up to +5 dBm)
dBm
dBm
—
—
65
71
—
—
IP3
0.5 GHz
0.5 - 2.0 GHz
Measured Relative to Input
(for two-tone Input Power up to +5 dBm)
dBm
dBm
—
—
43
47
—
—
IC
⏐Vc⏐ = 5 V
µA
—
—
10
IVS
—
µA
—
—
20
± (0.15 dB + 5% of attenuation setting in dB) dB
± (0.3 dB + 5% of attenuation setting in dB) dB
4. External DC blocking capacitors are required on all RF ports. Loss varies at 0.003 dB/°C.
Absolute Maximum Ratings 5,6
Truth Table7
Parameter
Absolute Maximum
Input Power
50 MHz
500 - 2000 MHz
1
1
1
1
Reference Insertion Loss
+27 dBm
+34 dBm
1
1
1
0
2
Control Voltage
-0.5 V < VC < 8.5 V
1
1
0
1
4
Operating Temperature
-40°C to +85°C
1
0
1
1
8
Storage Temperature
-65°C to +150°C
0
1
1
1
16
0
0
0
0
30
5. Exceeding any one or combination of these limits may cause
permanent damage to this device.
6. M/A-COM does not recommend sustained operation near
these survivability limits.
VC1 VC2 VC3 VC4
Attenuation (dB)
7. 0 = 0 ± 0.2 V, 1 = +5 V
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.
AT-264
Digital Attenuator, 4-Bit, Single Control
30 dB, 0.5 - 2.0 GHz
Rev. V7
Typical Performance Curves
VSWR
Insertion Loss
2.0
3.5
-40°C
+25°C
+85°C
3.0
IL
2 dB
4 dB
8 dB
16 dB
30 dB
1.8
1.6
2.5
1.4
2.0
1.5
0.5
1.2
1.0
1.5
2.0
2.5
3.0
1.0
0.5
1.0
Attenuation
2.5
3.0
2.5
3.0
1.5
30
20
2.0
Attenuation Accuracy
35
25
1.5
Frequency (GHz)
Frequency (GHz)
1.0
2 dB
4 dB
8 dB
16 dB
30 dB
0.5
0.0
15
-0.5
10
-1.0
5
0
0.5
2 dB
4 dB
8 dB
16 dB
30 dB
-1.5
1.0
1.5
2.0
Frequency (GHz)
2.5
3.0
0.5
1.0
1.5
2.0
Frequency (GHz)
3
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.
AT-264
Digital Attenuator, 4-Bit, Single Control
30 dB, 0.5 - 2.0 GHz
Rev. V7
TSSOP-16
Handling Procedures
Please observe the following precautions to avoid
damage:
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.
4
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.