AT20-0263_1 [TE]
Digital Attenuator 31.0dB, 5-Bit, TTL Driver, DC-2.0 GHz; 数字衰减器31.0分贝， 5位， TTL驱动器， DC- 2.0 GHz的
| 型号： | AT20-0263_1 |
| 厂家： | 
TE CONNECTIVITY |
| 描述： | Digital Attenuator 31.0dB, 5-Bit, TTL Driver, DC-2.0 GHz |
| 文件： | 总4页 (文件大小：164K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
RoHS
Compliant
Digital Attenuator
31.0 dB, 5-Bit, TTL Driver, DC-2.0 GHz
AT20-0263
V4
Features
Functional Schematic
• Attenuation: 1 dB steps to 31 dB
• Temperature Stability: ± 0.18 dB from –40°C to
+85°C Typical
C5
RF2
16 dB
+5V
GND
GND
GND
•
•
•
•
•
•
•
Low DC Power Consumption
Surface Mount Package
Integral TTL Driver
Low Cost/High Performance
50 Ohm Nominal Impedance
Lead-Free CR-12 Package
260°C Reflow Compatible
8 dB
-5V
C4
4 dB
C3
GND
GND
2 dB
C2
GND Orientation Mark
RF1 PIN 1
C1
1 dB
PIN 16 GND
Description
M/A-COM’s AT20-0263 is a GaAs FET 5-bit digital
attenuator with a 1 dB minimum step size and 31 dB
total attenuation. This attenuator and integral TTL
driver is in a ceramic 16-lead surface mount pack-
age. The AT20-0263 is ideally suited for use where
accuracy, fast switching, very low power consump-
tion and low intermodulation products are required.
Typical applications include dynamic range setting in
precision receiver circuits and other gain/leveling
control circuits. Available with enhanced perform-
ance as fully hermetic version. Environmentally
screenable as P/N AT-263-PIN.
Pin Configuration
Pin No.
Function
RF1
Pin No.
Function
C5
1
2
3
4
5
6
7
8
9
GND
10
11
12
13
14
15
16
+5V
-5V
GND
GND
C4
GND
C3
GND
C2
GND
C1
RF2
GND
The metal bottom of the case must be connected to RF and DC
ground.
Ordering Information
Part Number
Package
AT20-0263
Bulk Packaging
Note: Reference Application Note M513 for reel size
information.
Note: Die quantity varies.
* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.
1
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
RoHS
Compliant
Digital Attenuator
31.0 dB, 5-Bit, TTL Driver, DC-2.0 GHz
AT20-0263
V4
Electrical Specifications: TA = 25°C1
Parameter
Test Conditions
Frequency
Units
Min
Typ
Max
Reference Insertion Loss
—
DC - 0.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
dB
dB
dB
—
—
—
2.0
2.2
2.5
2.4
2.8
3.0
Attenuation Accuracy 2
Any Single Bit
Any Combination of Bits
DC - 1.0 GHz
DC - 2.0 GHz
± (0.25 +3% of atten setting in dB) dB
± (0.25 +3% of atten setting in dB) dB or ± 0.4 dB,
whichever is greater
VSWR
Trise, Tfall
—
DC - 2.0 GHz
Ratio
ns
—
—
—
—
—
50
1.6:1
—
10% to 90%
—
—
—
Ton, Toff
50% Control to 90/10% RF
In-Band (peak-peak)
ns
150
50
—
Transients
mV
—
1 dB Compression
Input Power
Input Power
0.05 GHz
0.5 - 2.0 GHz
dBm
dBm
—
—
+20
+28
—
—
Input IP3
Input IP2
For two-tone Input Power
Up to +5 dBm
0.05 GHz
0.5 - 2.0 GHz
dBm
dBm
—
—
+40
+48
—
—
For two-tone Input Power
Up to +5 dBm
0.05 GHz
0.5 - 2.0 GHz
dBm
dBm
—
—
+45
+68
—
—
Vcc
Vee
Icc
—
—
—
—
—
V
V
4.5
-8.0
—
5.0
—
5.5
-5.0
5.0
Vcc = 4.5 to 5.5V
Vctl = 0 to 0.8V, or Vcc –
2.1V to Vcc
mA
—
Iee
Vee = -5.0 to -8.0V
—
mA
—
—
1.0
1. All specifications apply when operated with bias voltages of +5V for Vcc and –5.0V for Vee.
2. This attenuator is guaranteed monotonic.
Recommended PCB Configuration
Absolute Maximum Ratings 3,4
Parameter
Absolute Maximum
Max Input Power
0.5 GHz
0.5 - 2.0 GHz
+27 dBm
+34 dBm
Supply Voltages
Vcc
Vee
+5.5V
-8.5V
Control Voltage 5
Operating Temperature
Storage Temperature
-0.5V to Vcc +0.5V
-40°C to +125°C
-65°C to +150°C
3. Exceeding any one or combination of these limits may cause
permanent damage to this device.
4. M/A-COM does not recommend sustained operation near
these survivability limits.
5. Standard CMOS TTL interface, latch-up will occur if logic
signal is applied prior to power supply.
2
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
RoHS
Compliant
Digital Attenuator
31.0 dB, 5-Bit, TTL Driver, DC-2.0 GHz
AT20-0263
V4
Truth Table (Digital Attenuator)
Handling Procedures
Control Inputs
Please observe the following precautions to avoid
damage:
C5
0
C4
0
C3
0
C2
0
C1
0
Attenuation
Reference
1 dB
0
0
0
0
1
Static Sensitivity
0
0
0
1
0
2 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
1
0
0
4 dB
0
1
0
0
0
8 dB
1
0
0
0
0
16 dB
1
1
1
1
1
31 dB
0 = TTL Low; 1 = TTL High
Typical Performance Curves
Attenuation Accuracy vs. Frequency
Ref. Insertion Loss vs. Frequency
1,2,4,8,16 dB
Full Attenuation
+ 85 °C
+ 25 °C
- 55 °C
0.5
0
5
4
3
2
- 0.5
- 1
1
- 1.5
0.0
0.5
1.0
1.5
2.0
0
0.0
0.5
1.0
1.5
2.0
Frequency (GHz)
Frequency (GHz)
VSWR vs. Frequency
4 dB State
1 dB State
2.00
1.80
1.60
1.40
1.20
1.00
0.00
0.50
1.00
1.50
2.00
Frequency (GHz)
3
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
RoHS
Compliant
Digital Attenuator
31.0 dB, 5-Bit, TTL Driver, DC-2.0 GHz
AT20-0263
V4
Lead-Free CR-12 Ceramic Package†
†
Reference Application Note M538 for lead-free solder reflow
recommendations.
4
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
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