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AT90-1283-TB fiches techniques PDF

Tyco Electronics - Digital Attenuator/ 15.5 dB/ 5-Bit/ TTL Driver/ DC-3.5 GHz

Numéro de référence AT90-1283-TB
Description Digital Attenuator/ 15.5 dB/ 5-Bit/ TTL Driver/ DC-3.5 GHz
Fabricant Tyco Electronics 
Logo Tyco Electronics 





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AT90-1283-TB fiche technique
Digital Attenuator, 15.5 dB, 5-Bit,
TTL Driver, DC-3.5 GHz
V 4.00
Features
n Attenuation: 0.5 dB Steps to 15.5 dB
n Single Positive Supply
n Contains Internal DC to DC Converter
n Low DC Power Consumption
n Small Footprint, JEDEC Package
n Integral TTL Driver
n 50 ohm Impedance
Description
M/A-COM's AT90-1283 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-
1283 is ideally suited for use where accuracy, fast speed,
very low power consumption and low costs are required.
CSP-1
Electrical Specifications TA = +25°C
Parameter
Test Conditions
Frequency Units Min Typical
Max
Insertion Loss
Attenuation
Accuracy
VSWR
Individual Bits 0.5-1-4-8 dB
Individual Bit 2 dB
Any Combination of Bits
1 to 15.5 dB
Full Range
DC - 3.5 GHz
DC - 3.5 GHz
DC - 3.5 GHz
DC - 3.5 GHz
dB
dB
dB
dB
DC - 3.5 GHz Ratio
Switching Speed
1 dB Compression
50% Cntl to 90%/10% RF
10% to 90% or 90% to 10%
50 MHz
0.5 - 3.5 GHz
nS
nS
dBm
dBm
Input IP3
+Vcc
Two-tone inputs up to +5 dBm
50 MHz
0.5-3.5 GHz
dB
dB
V
4.75
2.8
1.6:1
75
20
+21
+29
+35
+48
5.0
3.2
±(.3 +5% of atten setting)
±(.4 +10% of atten setting)
±(.5 +7% of atten setting)
1.8:1
150
50
5.25
Logic “0”
Logic “1”
Icc
Sink Current is 20 µA max.
Source Current is 20 µA max.
Vcc min to max, Logic “0” or
“1”
V 0.0
V 2.0
mA —
6
0.8
5.0
10

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