AT90-1233TR [TE]
Digital Attenuator, 30 dB, 4-Bit, TTL Driver, DC - 2.5 GHz; 数字衰减30分贝， 4位， TTL驱动器， DC - 2.5 GHz的
| 型号： | AT90-1233TR |
| 厂家： | 
TE CONNECTIVITY |
| 描述： | Digital Attenuator, 30 dB, 4-Bit, TTL Driver, DC - 2.5 GHz |
| 文件： | 总4页 (文件大小：255K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Digital Attenuator, 30 dB, 4-Bit,
TTL Driver, DC - 2.5 GHz
V 1.00
Features
CSP-1
n
n
n
n
n
n
n
n
Attenuation: 2 dB Steps to 30 dB
Single Positive Supply
Contains Internal DC to DC Converter
Small Footprint, JEDEC Package
Integral TTL Driver
50 Ohm Impedance
Test Boards Available
Tape and Reel Packaging Available
Description
M/A-COM’s AT90-1233 is a GaAs FET 4-Bit digital
attenuator with integral driver. Step size is 2 dB providing
a 30 dB attenuation range. This device is in an FQFP-N
plastic surface mount package. The AT90-1233 is suited
for single supply applications where accuracy, fast speed,
low power consumption and low costs are required.
Electrical Specifications TA = +25°C
Parameter
Test Conditions
Frequency
Units
Min
Typical
Max
Insertion Loss
—
DC - 2.5 GHz
DC - 2.5 GHz
dB
dB
—
—
2.7
—
3.0
Attenuation
Accuracy
Individual Bits or Combination
of Bits
±(.3 +5% of atten setting)
VSWR
Full Range
DC - 2.5 GHz
Ratio
—
1.5:1
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 - 2.5 GHz
dBm
dBm
—
—
+21
+29
—
—
Two-tone inputs up to +5 dBm
50 MHz
0.5 - 2.5 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, 30 dB, 4-Bit, TTL Driver, DC - 2.5 GHz
Pin Configuration
AT90-1233
V 1.00
Recommended PCB Layout 7
Pin No.
Function
GND
C16
C8
Pin No.
17
Function
N/C
1
2
18
N/C
2
3
19
+VCC
4
C4
20
N/C
Cp4
N/C
Cp4
N/C
5
C2
21
6
GND
GND
N/C
22
7
23
8
24
3
9
N/C
25
-VEE
10
11
12
13
14
15
16
N/C1
GND
RF1
GND
N/C
26
GND
RF2
27
28
GND
N/C1
29
3,5
30
-VEE
7. Application Note C2083 is available on line at
www.macom.com
N/C
31
N/C
2,6
N/C
32
+VCC
Absolute Maximum Ratings 8
1. Pins 10 and 29 must be isolated.
2. Pin 19 must be connected to Pin 32.
3. Pin 25 must connect to Pin 30.
4. A .01 µF cap must be connected between Pins 21 and 23.
5. -VEE is produced internally and requires a .1 µF cap to GND.
6. +VCC requires a .1 µF cap to GND.
Parameter
Absolute Maximum
Max. Input Power
0.05 GHz
+27 dBm
+34 dBm
0.5 - 2.5 GHz
+Vcc
+5.5V
-8.5V
Truth Table
-Vee
Logic Voltages 9
Operating Temperature
-0.5 to +Vcc + 0.5V
-40°C to +85°C
C16
C6
0
C4
0
C2
0
Attenuation
Loss, Reference
2.0 dB
0
0
0
0
1
1
0
0
1
Storage Temperature
-65°C to +125°C
0
1
0
4.0 dB
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.
1
0
0
8.0 dB
0
0
0
16.0 dB
1
1
1
30.0 dB
0 = TTL Low; 1 = TTL High
Ordering Information
Part Number
Package
Bulk Packaging
AT90-1233
AT90-1233TR
AT90-1233-TB
Tape and Reel (1K Reel)
Units Mounted on Test Board
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, 30 dB, 4-Bit, TTL Driver, DC - 2.5 GHz
Typical Performance Curves
AT90-1233
V 1.00
Insertion Loss
VSWR @ Insertion Loss
Output
Input
3.00
2.50
2.00
1.50
1.00
1.60
1.40
1.20
1.00
0
500
1000
1500
2000
2500
0
500
1000
1500
2000
2500
Frequency (MHz)
Frequency (MHz)
Attenuation Error, 4 dB Bit
Attenuation Error, 2 dB Bit
0.30
0.20
0.10
0.00
-0.10
-0.20
-0.30
0.40
0.20
0.00
-0.20
-0.40
0
500
1000
1500
2000
2500
0
500
1000
1500
2000
2500
Frequency (MHz)
Frequency (MHz)
Attenuation Error, 16 dB Bit
Attenuation Error, 8 dB Bit
0.40
0.20
0.00
-0.20
-0.40
0.00
-0.20
-0.40
-0.60
-0.80
0
500
1000
1500
2000
2500
0
500
1000
1500
2000
2500
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, 30 dB, 4-Bit, TTL Driver, DC - 2.5 GHz
Typical Performance Curves
AT90-1233
V 1.00
Attenuation Error, Max. Attenuation
VSWR, 2 dB Bit
Output
Input
1.60
1.40
1.20
1.00
0.50
0.00
-0.50
-1.00
-1.50
0
500
1000
1500
2000
2500
0
500
1000
1500
2000
2500
Frequency (MHz)
Frequency (MHz)
VSWR, 8 dB Bit
VSWR, 4 dB Bit
Output
Input
Output
Input
1.60
1.40
1.20
1.00
1.60
1.40
1.20
1.00
0
500
1000
1500
2000
2500
0
500
1000
1500
2000
2500
Frequency (MHz)
Frequency (MHz)
VSWR, Maximum Attenuation
VSWR, 16 dB Bit
Output
Input
Output
Input
1.60
1.40
1.20
1.00
1.60
1.40
1.20
1.00
0
500
1000
1500
2000
2500
0
500
1000
1500
2000
2500
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.
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