AT90-0283-TB [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： | AT90-0283-TB |
| 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 6.00
CSP-1
Features
n
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Attenuation: 0.5 dB Steps to 15.5 dB
Low DC Power Consumption
Small Footprint, JEDEC Package
Integral TTL Driver
50 ohm Impedance
Test Boards are Available
Tape and Reel Packaging Available
Description
M/A-COM's AT90-0283 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-
0283 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
-Vee
—
—
—
—
V
V
4.75
-8.0
5.0
-5.0
5.25
-4.75
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
—
—
5.0
6
Vcc min to max,
Logic “0” or “1”
mA
0.2
-Iee
-Vee min to max,
Logic “0” or “1”
—
mA
—
-0.2
-1
Digital Attenuator, 15.5 dB, 5-Bit, TTL Driver, DC - 3.5 GHz
Pin Configuration
AT90-0283
V 6.00
Recommended PCB Layout 2
Pin #
Function
GND
Pin #
17
Function
NC
1
2
C8
18
NC
3
4
5
6
C4
C2
19
20
21
22
NC
NC
NC
NC
C1
C0.5
7
GND
NC
23
24
25
26
27
28
29
30
NC
NC
8
9
NC
NC
10
11
12
13
14
NC1
GND
RF1
GND
NC
GND
RF2
GND
NC1
-Vee
15
16
NC
NC
31
32
NC
+Vcc
1. Pins 10 & 29 must be isolated
2. Application Note C2083 is available on line at
www.macom.com
Truth Table
Absolute Maximum Ratings 3
C8
0
C4
0
C2
0
C1
0
C0.5
Attenuation
Loss, Reference
0.5 dB
Parameter
Absolute Maximum
0
1
0
0
0
0
1
0
0
0
0
Max. Input Power
0.05 GHz
+27 dBm
+34 dBm
0
0
0
1
1.0 dB
0.5 - 3.5 GHz
0
0
1
0
2.0 dB
+Vcc
+5.5V
-8.5V
0
1
0
0
4.0 dB
-Vee
1
0
0
0
8.0 dB
Logic Voltages 4
Operating Temperature
-0.5 to +Vcc + 0.5V
-40°C to +85°C
1
1
1
1
15.5 dB
0 = TTL Low; 1 = TTL High
Storage Temperature
-65°C to +125°C
3. Operation of this device above any one of these
parameters may cause permanent damange.
4. 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
AT90-0283
V 6.00
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
AT90-0283
V 6.00
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
AT90-0283
V 6.00
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
AT90-0283
AT90-0283TR
AT90-0283-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.
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