AT90-1263_1 [TE]
Digital Attenuator, 31dB, 5-Bit, TTL Driver DC - 3.0 GHz; 数字衰减器， 31分贝， 5位， TTL驱动DC - 3.0 GHz的
| 型号： | AT90-1263_1 |
| 厂家： | 
TE CONNECTIVITY |
| 描述： | Digital Attenuator, 31dB, 5-Bit, TTL Driver DC - 3.0 GHz |
| 文件： | 总5页 (文件大小：486K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Digital Attenuator, 31 dB, 5-Bit, T T L Driv er
DC - 3.0 G H z
AT 9 0 -12 6 3
V 12
Features
CSP-1
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Attenuation: 1.0dB Steps to 31dB
Single Positive Supply
Contains internal DC to DC converter
Low DC Power Consumption
Small Footprint, JEDEC Package
Integral TTL Driver
50 ohm Impedance
Description
M/A-COM's AT90-1263 is a GaAs FET 5-bit digital
attenuator with integral TTL driver. Step size is 1.0
dB providing 31 dB total attenuation range. This
device is in an FQFP-N plastic surface mount
package. The AT90-1263 is ideally suited for use
where accuracy, fast speed, very low power
consumption and low costs are required. For dual
supply designs without DC-DC converter noise, use
AT90-0263.
Ordering Information
Pin Configuration
Part Number
Package
Pin No.
Function
Pin No.
Function
AT90-1263
Bulk Packaging
1000 piece reel
1
2
GND
C16
C8
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
NC
NC
AT90-1263TR
AT90-1263-TB
3
+Vcc2
Units Mounted on Test Board
4
C4
NC
Note: Reference Application Note M513 for reel size
information.
5
C2
CP23
NC
6
C1
7
GND
NC
CP13
Truth Table
8
NC
9
NC
Vee4
GND
RF2
C16 C8
C4
C2
C1
Attenuation
10
11
12
13
14
15
16
NC1
GND
RF1
GND
NC
0
0
0
0
0
0
0
0
0
1
Loss, Reference
1.0 dB
GND
NC1
0
0
0
1
1
0
0
1
0
1
0
1
0
0
1
1
0
0
0
1
0
0
0
0
1
2.0 dB
4.0 dB
8.0 dB
16.0 dB
31.0 dB
Vee 5,6
NC
NC
NC
+Vcc 2,7
1.Pins 10 & 29 must be isolated
2. Pin 19 must be connected to Pin 32
3. Pin 25 must be connected to Pin 30
4. .01ꢀF cap must be connected between Pins 21 and 23
5. The negative voltage Vee is produced internally and requires
a 0.1ꢀF cap to GND. Generated noise is typical of switching
DC-DC Converters.
0 = TTL Low; 1 = TTL High
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.
Digital Attenuator, 31 dB, 5-Bit, T T L Driv er
DC - 3.0 G H z
AT 9 0 -12 6 3
V 12
Electrical Specifications: TA = 25°C
Parameter
Test Conditions
Frequency
Units
Min.
Typ.
Max.
Insertion Loss
–
DC - 3.0 GHz
dB
–
3.5
3.8
Attenuation Accuracy
Individual Bits 1-2-4-8-16 dB
Any Combination of Bits 1 to 31 dB DC - 3.0 GHz
DC - 3.0 GHz
dB
dB
–
–
–
–
±(.3 +5% of atten setting)
±(.5+7% of atten setting)
VSW R
Full Range
DC - 3.0 GHz
Ratio
–
2.0:1
2.2:1
Switching Speed
50% Cntl to 90%/10% RF
10% to 90% or 90% to 10%
–
–
nS
nS
–
–
75
20
150
50
1 dB Compression
Input IP3
–
–
50 MHz
0.5 - 3.0 GHz
dBm
dBm
–
–
+21
+24
–
–
Two-tone inputs up to +5 dBm
50 MHz
0.5 - 3.0 GHz
dB
dB
–
–
+35
+48
–
–
+Vcc
–
–
–
V
4.75
0.0
2.0
–
5.0
–
–
6
5.25
0.8
5.0
10
Logic —0“
Sink Current is 20 µA max.
Source Current is 20 µA max.
V
Logic —1“
–
V
Icc 9
Vcc min to max,
Logic —0“ or —1“
–
mA
mA
dBm
Turn-on Current 10
Switching Noise
For guarenteed start-up
–
–
–
-93
125
–
Generated from
3.5 MHz
–
DC-DC Converter with
recommended capacitors
Thermal Resistance
–
–
oC/W
–
35
–
ꢀJA
Absolute Maximum Ratings 3
9. During turn-on, the device requires an initial start up current
(Icc) specified as —Turn-on Current“. Once operational, Icc will
drop to the specified levels.
Parameter
Absolute Maximum
Max. Input Power
0.05 GHz
10.The DC-DC converter is guaranteed to start in 100 ꢀs as
long as the power supplies have the maximum turn-on current
available for start up.
+27 dBm
+34 dBm
0.5 - 3.0 GHz
Supply Voltages
Vcc
Vee
-0.5V ≤ Vcc ≤5.5V
-8.5V ≤ Vcc ≤0.5V
Handling Procedures
Please observe the following precautions to avoid
damage:
Logic Voltage4
-0.5V to Vcc +0.5V
-40°C to +85°C
Operating Temperature
Storage Temperature
-65°C to +125°C
Static Sensitivity
3. Exceeding any one or combination of these limits may cause
permanent damage to this device.
4. Standard CMOS TTL interface, latch-up will occur if logic
signal is applied prior to power supply.
GMIC 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.
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.
Digital Attenuator, 31 dB, 5-Bit, T T L Driv er
DC - 3.0 G H z
AT 9 0 -12 6 3
V 12
Typical Performance Curves @ 25ºC
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.
Digital Attenuator, 31 dB, 5-Bit, T T L Driv er
DC - 3.0 G H z
AT 9 0 -12 6 3
V 12
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.
Digital Attenuator, 31 dB, 5-Bit, T T L Driv er
DC - 3.0 G H z
AT 9 0 -12 6 3
V 12
Recommended PCB Configuration5
5. Application Note S2083 is available on line at
www.macom.com
Block Diagram
5
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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