AT90-1263 Tyco Electronics, AT90-1263 Datasheet - Page 2

• Manufacturer Part Number: AT90-1263
• Description: Digital Attenuator, 31db, 5-bit, Ttl Driver Dc - 3.0 Ghz
• Manufacturer: Tyco Electronics

2
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
Digital Attenuator, 31 dB, 5-Bit, TTL Driver
DC - 3.0 GHz
Electrical Specifications T
11.Application Note S2083 is available on line at
9. During turn-on, the device requires an initial start up current (Icc) specified as “Turn-on Current”. Once operational, Icc will drop to the
10.The DC-DC converter is guaranteed to start in 100 µs as long as the power supplies have the maximum turn-on current available for
Recommended PCB Layout
Thermal Resistance θjc
Attenuation Accuracy
www.macom.com
1 dB Compression
Turn-on Current
specified levels.
start up.
Switching Speed
Switching Noise
Insertion Loss
Parameter
Input IP
Logic “0”
Logic “1”
VSWR
+Vcc
Icc
9
3
10
Any Combination of Bits 1 to 31 dB
Two-tone inputs up to +5 dBm
Source Current is 20 µA max.
Individual Bits 1-2-4-8-16 dB
10% to 90% or 90% to 10%
Sink Current is 20 µA max.
50% Cntl to 90%/10% RF
recommended capacitors
For guaranteed start-up
DC-DC Converter with
Test Conditions
Vcc min to max,
Generated from
Logic “0” or “1”
Full Range
A
—
—
—
—
—
= +25°C
11
Frequency
DC - 3.0 GHz
DC - 3.0 GHz
DC - 3.0 GHz
DC - 3.0 GHz
0.5 - 3.0 GHz
0.5-3.0 GHz
3.5 MHz
50 MHz
50 MHz
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• North America Tel: [phone] / Fax: [phone]
• Europe Tel: [phone] / Fax: [phone]
• Asia/Pacific Tel: [phone] / Fax: [phone]
Visit www.macom.com for additional data sheets and product information.
Truth Table
0 = TTL Low; 1 = TTL High
C16
0
0
0
0
0
1
1
Units
Ratio
°C/W
dBm
dBm
dBm
mA
mA
dB
dB
dB
nS
nS
dB
dB
C8
V
V
V
0
0
0
0
1
0
1
Min
4.75
C4
0.0
2.0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0
0
0
1
0
0
1
Typical
C2
0
0
1
0
0
0
1
2.0:1
+21
+24
+35
+48
-93
3.5
5.0
75
20
35
—
—
—
—
—
6
C1
0
1
0
0
0
0
1
±(.3 +5% of atten setting)
±(.5 +7% of atten setting)
Loss, Reference
Attenuation
AT90-1263
Max
2.2:1
5.25
150
125
16.0 dB
31.0 dB
3.8
0.8
5.0
50
10
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—
—
—
—
1.0 dB
2.0 dB
4.0 dB
8.0 dB
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