AT90-1283TR [TE]
Digital Attenuator, 15.5 dB, 5-Bit, TTL Driver, DC-3.5 GHz; 数字衰减15.5分贝， 5位， TTL驱动器， DC- 3.5 GHz的
| 型号： | AT90-1283TR |
| 厂家： | 
TE CONNECTIVITY |
| 描述： | Digital Attenuator, 15.5 dB, 5-Bit, TTL Driver, DC-3.5 GHz |
| 文件： | 总5页 (文件大小：270K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Digital Attenuator, 15.5 dB, 5-Bit,
TTL Driver, DC-3.5 GHz
V 4.00
CSP-1
Features
n
n
n
n
n
n
n
Attenuation: 0.5 dB Steps to 15.5 dB
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 AT90-1283 is a GaAs FET 5-bit digital
attenuator with integral TTL driver. Step size is 0.5 dB
providing a 15.5 dB total attenuation range. This device is
in an FQFP-N plastic surface mount package. The AT90-
1283 is ideally suited for use where accuracy, fast speed,
very low power consumption and low costs are required.
Electrical Specifications TA = +25°C
Parameter
Test Conditions
Frequency Units Min
Typical
Max
Insertion Loss
—
DC - 3.5 GHz
dB
—
2.8
3.2
Attenuation
Accuracy
Individual Bits 0.5-1-4-8 dB
Individual Bit 2 dB
Any Combination of Bits
1 to 15.5 dB
DC - 3.5 GHz
DC - 3.5 GHz
DC - 3.5 GHz
dB
dB
dB
—
—
—
—
—
—
±(.3 +5% of atten setting)
±(.4 +10% of atten setting)
±(.5 +7% of atten setting)
VSWR
Full Range
DC - 3.5 GHz Ratio
—
1.6:1
1.8:1
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 - 3.5 GHz
dBm
dBm
—
—
+21
+29
—
—
Two-tone inputs up to +5 dBm
50 MHz
0.5-3.5 GHz
dB
dB
—
—
+35
+48
—
—
+Vcc
—
—
V
4.75
5.0
5.25
Logic “0”
Sink Current is 20 µA max.
—
V
0.0
—
0.8
Logic “1”
Icc
Source Current is 20 µA max.
—
—
V
2.0
—
—
6
5.0
10
Vcc min to max, Logic “0” or
“1”
mA
Digital Attenuator, 15.5 dB, 5-Bit, TTL Driver, DC - 3.5 GHz
Pin Configuration
AT90-1283
V 4.00
Recommended PCB Layout 7
Pin #
Function
GND
Pin #
17
Function
NC
1
2
C8
18
NC
3
4
5
6
C4
C2
19
20
21
22
+Vcc2
NC
C1
Cp4
NC
C0.5
7
GND
NC
23
24
25
26
27
28
29
30
Cp4
8
NC
9
NC
-Vee3,5
GND
RF2
10
11
12
13
14
NC1
GND
RF1
GND
NC
GND
NC1
-Vee3,5
15
16
NC
NC
31
32
NC
+Vcc2,6
1. Pins 10 & 29 must be isolated
7. Application Note C2083 is available on line at
www.macom.com
2. Pin 19 must be connected to Pin 32.
3. Pin 25 must be connected to Pin 30.
4. .01 µF cap must be between pins 21 & 23.
5. -Vee produced internally and requires a .1 µF cap to GND.
6. +Vcc requires a .1 µF cap to GND.
Absolute Maximum Ratings 8
Truth Table
Parameter
Absolute Maximum
C8
0
C4
0
C2
0
C1
0
C0.5
Attenuation
Loss, Reference
0.5 dB
0
1
0
0
0
0
1
Max. Input Power
0.05 GHz
+27 dBm
+34 dBm
0
0
0
0
0.5 - 3.5 GHz
0
0
0
1
1.0 dB
+Vcc
Logic Voltages 9
+5.5V
0
0
1
0
2.0 dB
-0.5 to +Vcc + 0.5V
-40°C to +85°C
-65°C to +125°C
0
1
0
0
4.0 dB
1
0
0
0
8.0 dB
Operating Temperature
Storage Temperature
1
1
1
1
15.5 dB
0 = TTL Low; 1 = TTL High
8. Operation of this device above any one of these
parameters may cause permanent damange.
9. Standard CMOS TTL interface, latch-up will occur if logic
signal is applied prior to power supply.
2
Specifications subject to change without notice.
n North America: Tel. (800) 366-2266
n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
Digital Attenuator, 15.5 dB, 5-Bit, TTL Driver, DC - 3.5 GHz
Typical Performance Curves
AT90-1283
V 4.00
Insertion Loss
VSWR @ Insertion Loss
Input
Output
3.0
2.5
2.0
1.5
1.0
1.75
1.50
1.25
1.00
0
500
1000
1500
2000
2500
3000
3500
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
Frequency (MHz)
Attenuation Error, 0.5 dB Bit
Attenuation Error, 1 dB Bit
1.0
0.5
1.0
0.5
0.0
0.0
-0.5
-1.0
-0.5
-1.0
0
500
1000
1500
2000
2500
3000
3500
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
Frequency (MHz)
Attenuation Error, 4 dB Bit
Attenuation Error, 2 dB Bit
1.0
0.5
1.0
0.5
0.0
0.0
-0.5
-1.0
-0.5
0
500
1000
1500
2000
2500
3000
3500
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
Frequency (MHz)
3
Specifications subject to change without notice.
n North America: Tel. (800) 366-2266
n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
Digital Attenuator, 15.5 dB, 5-Bit, TTL Driver, DC - 3.5 GHz
Typical Performance Curves
AT90-1283
V 4.00
Attenuation Error, Max. Attenuation
Attenuation Error, 8 dB Bit
1.0
0.5
3.0
2.0
1.0
0.0
-1.0
0.0
-0.5
0
500
1000
1500
2000
2500
3000
3500
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
Frequency (MHz)
VSWR, 0.5 dB Bit
VSWR, 1 dB Bit
Input
Output
Output
Input
1.6
1.4
1.2
1.0
1.6
1.4
1.2
1.0
0
500
1000
1500
2000
2500
3000
3500
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
Frequency (MHz)
VSWR, 4 dB Bit
VSWR, 2 dB Bit
Input
Output
Input
Output
1.6
1.4
1.2
1.0
1.8
1.6
1.4
1.2
1.0
0
500
1000
1500
2000
2500
3000
3500
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
Frequency (MHz)
4
Specifications subject to change without notice.
n North America: Tel. (800) 366-2266
n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
Digital Attenuator, 15.5 dB, 5-Bit, TTL Driver, DC - 3.5 GHz
Typical Performance Curves
AT90-1283
V 4.00
VSWR, Maximum Attenuation
VSWR, 8 dB Bit
Input
Output
Input
Output
1.8
1.6
1.4
1.2
1.0
1.6
1.4
1.2
1.0
0
500
1000
1500
2000
2500
3000
3500
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
Frequency (MHz)
Ordering Information
Part Number
Package
Bulk Packaging
AT90-1283
AT90-1283TR
AT90-1283-TB
Tape and Reel (1K Reel)
Units Mounted on Test Board
5
Specifications subject to change without notice.
n North America: Tel. (800) 366-2266
n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
相关型号：
©2020 ICPDF网 联系我们和版权申明