AT20-0107-TB [TE]
Digital Attenuator, 31.5 dB, 6-Bit, TTL Driver, DC - 2.0 GHz; 数字衰减31.5分贝， 6位， TTL驱动器， DC - 2.0 GHz的
| 型号： | AT20-0107-TB |
| 厂家： | 
TE CONNECTIVITY |
| 描述： | Digital Attenuator, 31.5 dB, 6-Bit, TTL Driver, DC - 2.0 GHz |
| 文件： | 总3页 (文件大小：308K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Digital Attenuator, 31.5 dB, 6-Bit,
TTL Driver, DC - 2.0 GHz
V 4.00
Features
CR-13
n
n
Attenuation: 0.5 dB Steps to 31.5 dB1
Temperature Stability: ±0.18 dB from –40ºC to +85ºC
Typ.
n
n
n
n
n
Low DC Power Consumption
Surface Mount Package
Integral TTL Driver
High Intercept Point
Low Cost/High Performance
Description
M/A-COM's AT20-0107 is a GaAs FET 6-bit digital
attenuator with a 0.5 dB minimum step size and a 31.5 dB
total attenuation. This attenuator and integral TTL driver is
in a ceramic 24-lead surface mount package. The AT20-
0107 is ideally suited for use where accuracy, fast speed,
very low power consumption and low intermodulation
products are required. Typical applications include dynamic
range setting in precision receiver circuits and other gain/
leveling control circuits. Available with enhanced perform-
ance as fully hermetic version. Environmentally screenable
as P/N AT-107.
Electrical Specifications2: TA = +25°C
Parameter
Test Conditions
Frequency
Units
Min
Typ.
Max
Insertion Loss
—
DC - 2.0 GHz
dB
—
3.2
3.8
Attenuation Accuracy3,4
Any Bit or Combination of Bits
Full Range
DC - 2.0 GHz
DC - 2.0 GHz
dB
—
—
—
—
+(.3 +7% of atten.)
-(.2 +1% of atten.)
VSWR
Ratio
1.8:1
Trise, Tfall
Ton, Toff
Transients
10% to 90%
50% Control to 90%/10% RF
In-band (peak to peak)
—
—
—
nS
nS
mV
—
—
—
50
150
50
—
—
—
1 dB Compression 5
Input Power
Input Power
50 MHz
0.5 - 2.0 GHz
dBm
dBm
—
—
+21
+29
—
—
5
Input IP3
Two Tone Inputs up to +5 dBm
50 MHz
0.5 - 2.0 GHz
dB
dB
—
—
+35
+48
—
—
5
Input IP2
Two Tone Inputs up to +5 dBm
50 MHz
0.5 - 2.0 GHz
dB
dB
—
—
+75
+79
—
—
Vcc
-Vee
—
—
—
—
V
V
4.5
-8.0
5.0
—
5.5
-5.0
Icc
Vcc = 4.5 to 5.5V
—
—
mA
mA
—
—
—
—
6.0
1.0
-Iee
-Vee = -5.0 to -8.0V
1. Above reference insertion loss.
2. All specifications apply when operated with bias voltages of +5V for VCC and –5.0 V to –8.0 V for VEE and 50O impedance at all
ports unless otherwise stated.
3. This attenuator is guaranteed monotonic.
4. For the attenuator to meet the guaranteed specifications, it is necessary to have a DC return on either RF1 or RF2. The DC
return can be either a 10KO resistor, or an RF choke.
5. VEE = -5 V for the typical numbers given.
Digital Attenuator, 31.5 dB, 6-Bit, TTL Driver, DC - 2.0 GHz
AT20-0107
V 4.00
Absolute Maximum Ratings 6
Truth Table
C16 C8 C4 C2
C1 C0.5
Attenuation
Parameter
Absolute Maximum
0
0
0
0
0
0
1
1
0
0
0
0
0
1
0
1
0
0
0
0
1
0
0
1
0
0
0
1
0
0
0
1
0
0
1
0
0
0
0
1
0
1
0
0
0
0
0
1
Loss, Reference
0.5 dB
Max. Input Power
0.05 GHz
+27 dBm
+34 dBm
0.5 - 2.0 GHz
1.0 dB
+Vcc
+5.5V
2.0 dB
-Vee
-8.5V
4.0 dB
Control Voltage
Operating Temperature
Storage Temperature
-0.5V to VCC +0.5V
-40°C to +125°C
-65°C to +150°C
8.0 dB
16.0 dB
31.5 dB
6. Operation of this device above any one of these parameters
may cause permanent damange.
0 = TTL Low; 1 = TTL High
PCB Layout
Functional Schematic (Top View)
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, 31.5 dB, 6-Bit, TTL Driver, DC - 2.0 GHz
Typical Performance Curves
AT20-0107
V 4.00
Insertion Loss vs. Frequency
Attenuation Accuracy vs. Frequency
+85 °C
+25 °C
-40 °C
1 dB
2 dB
0.5 dB
4 dB
4
3
2
1
0
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
0
0.5
1
1.5
2
0
0.5
1
1.5
2
Frequency (GHz)
Frequency (GHz)
RF1 VSWR vs. Frequency
Attenuation Accuracy vs. Frequency
16 dB
8 dB
31.5 dB
Loss & 0.5 dB
2 dB
1 dB
4 dB
8 & 16 dB
0.8
2
0.6
0.4
0.2
0
1.8
1.6
1.4
1.2
1
-0.2
-0.4
-0.6
-0.8
0
0.5
1
1.5
2
0
0.5
1
1.5
2
Frequency (GHz)
Frequency (GHz)
RF2 VSWR vs. Frequency
Ordering Information
8 dB
1 & 2 dB
4 dB
Loss & 0.5 dB
16 dB
2
Part Number
Package
1.8
1.6
1.4
1.2
1
AT20-0107
Bulk Packaging
AT20-0107TR
AT20-0107-TB
Tape and Reel (1K Reel)
Unit mounted on a test board
0
0.5
1
1.5
2
Frequency (GHz)
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.
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