AT90-1263-TB [TE]
Digital Attenuator, 31 dB, 5-Bit, TTL Driver, DC-4.0 GHz; 数字衰减31分贝， 5位， TTL驱动器， DC- 4.0 GHz的
| 型号： | AT90-1263-TB |
| 厂家： | 
TE CONNECTIVITY |
| 描述： | Digital Attenuator, 31 dB, 5-Bit, TTL Driver, DC-4.0 GHz |
| 文件： | 总5页 (文件大小：271K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Digital Attenuator, 31 dB, 5-Bit,
TTL Driver, DC-4.0 GHz
V 6.00
CSP-1
Features
n
n
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n
n
n
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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 31dB 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.
Electrical Specifications TA = +25°C
Parameter
Test Conditions
Frequency
Units
Min
Typical
Max
Insertion Loss
—
DC - 4.0 GHz
dB
—
3.5
3.8
Attenuation
Accuracy
Individual Bits 1-2-4-8-16 dB
DC - 3.0 GHz
DC - 4.0 GHz
DC - 4.0 GHz
dB
dB
dB
—
—
—
—
—
—
±(.3 +5% of atten setting)
±(.4 +6% of atten setting)
±(.5 +7% of atten setting)
Any Combination of Bits 1 to
31 dB
VSWR
Full Range
DC - 4.0 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 - 4.0 GHz
dBm
dBm
—
—
+21
+29
—
—
Two-tone inputs up to +5 dBm
50 MHz
0.5-4.0 GHz
dB
dB
—
—
+35
+48
—
—
+Vcc
—
—
—
V
V
4.75
0.0
5.0
—
5.25
0.8
Logic “0”
Sink Current is 20 µA max.
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, 31 dB, 5-Bit, TTL Driver, DC - 4.0 GHz
Pin Configuration
AT90-1263
V 6.00
Recommended PCB Layout 7
Pin #
Function
GND
Pin #
17
Function
NC
1
2
C16
18
NC
3
4
5
6
C8
C4
C2
C1
19
20
21
22
+Vcc2
NC
Cp4
NC
7
GND
NC
23
24
25
26
27
28
29
30
Cp4
8
NC
9
NC
-Vee3
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
2. Pin 19 must be connected to Pin 32
3. Pin 25 must be connected to Pin 30
7. Application Note C2083 is available on line at
www.macom.com
4. .01µF cap must be connected between Pins 21 and 23
5. -Vee is produced internally and requires a .1µF cap to
GND
6. +Vcc requires a .1µF cap to GND
Truth Table
C16
C8
0
C4
0
C2
0
C1
0
Attenuation
Loss, Reference
1.0 dB
Absolute Maximum Ratings 8
0
0
0
0
0
1
1
0
0
0
1
Parameter
Absolute Maximum
0
0
1
0
2.0 dB
Max. Input Power
0.05 GHz
0
1
0
0
4.0 dB
+27 dBm
+34 dBm
1
0
0
0
8.0 dB
0.5 - 4.0 GHz
0
0
0
0
16.0 dB
+Vcc
+5.5V
1
1
1
1
31.0 dB
Logic Voltages 9
-0.5 to +Vcc + 0.5V
-40°C to +85°C
-65°C to +125°C
Operating Temperature
Storage Temperature
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, 31 dB, 5-Bit, TTL Driver, DC - 4.0 GHz
Typical Performance Curves
AT90-1263
V 6.00
Insertion Loss
VSWR @ Insertion Loss
Input
Output
4.0
3.0
2.0
1.0
3.00
2.00
1.00
0
1000
2000
3000
4000
0
1000
2000
Frequency (MHz)
3000
4000
Frequency (MHz)
Attenuation Error, 1 dB Bit
Attenuation Error, 2 dB Bit
0.3
0.2
0.1
0
0.3
0.2
0.1
0
-0.1
-0.1
0
1000
2000
3000
4000
0
1000
2000
3000
4000
Frequency (MHz)
Frequency (MHz)
Attenuation Error, 8 dB Bit
Attenuation Error, 4 dB Bit
0.7
0.5
0.3
0.1
-0.1
0.7
0.5
0.3
0.1
-0.1
0
1000
2000
3000
4000
0
1000
2000
3000
4000
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, 31 dB, 5-Bit, TTL Driver, DC - 4.0 GHz
AT90-1263
V 6.00
Typical Performance Curves
Attenuation Error, Max. Attenuation
Attenuation Error, 16 dB Bit
1.5
1.5
0.5
-0.5
-1.5
0.5
-0.5
-1.5
0
1000
2000
3000
4000
0
1000
2000
3000
4000
Frequency (MHz)
Frequency (MHz)
VSWR, 1 dB Bit
VSWR, 2 dB Bit
Output
Input
Input
Output
1.8
1.6
1.4
1.2
1.0
1.6
1.4
1.2
1.0
0
1000
2000
3000
4000
0
1000
2000
3000
4000
Frequency (MHz)
Frequency (MHz)
VSWR, 8 dB Bit
VSWR, 4 dB Bit
Input
Output
Input
Output
1.6
1.4
1.2
1.0
1.6
1.4
1.2
1.0
0
1000
2000
3000
4000
0
1000
2000
3000
4000
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, 31 dB, 5-Bit, TTL Driver, DC - 4.0 GHz
Typical Performance Curves
AT90-1263
V 6.00
VSWR, Maximum Attenuation
VSWR, 16 dB Bit
Input
Output
Input
Output
1.6
1.4
1.2
1.0
1.6
1.4
1.2
1.0
0
1000
2000
3000
4000
0
1000
2000
3000
4000
Frequency (MHz)
Frequency (MHz)
Ordering Information
Part Number
Package
AT90-1263
Bulk Packaging
AT90-1263TR
AT90-1263-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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