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PDF AT-263 Data sheet ( Hoja de datos )

Número de pieza AT-263
Descripción Digital Attenuator/ 31 dB/ 5-Bit/ TTL Driver/ DC - 2 GHz
Fabricantes Tyco Electronics 
Logotipo Tyco Electronics Logotipo



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No Preview Available ! AT-263 Hoja de datos, Descripción, Manual

Digital Attenuator, 31 dB, 5-Bit,
TTL Driver, DC - 2 GHz
V 3.00
Features
n Attenuation: 1 dB steps to 31 dB
n Temperature Stability: ± 0.18 dB from –55°C to +85°C
Typical
n Low DC Power Consumption
n Hermetic Surface Mount Package
n Integral TTL Driver
n 50 Ohm Nominal Impedance
Description
M/A-COM’s AT-263 is a GaAs FET 5-bit digital
attenuator with a 1 dB minimum step size and 31 dB total
attenuation. This attenuator and integral TTL driver is in a
hermetically sealed ceramic 16-lead surface mount package.
The AT-263 is ideally suited for use where accuracy, fast
switching, 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. Environmental
screening is available. Contact the factory for information.
CR-12
Electrical Specifications1
(From –55°C to +85°C)
Parameter
Reference Insertion Loss
Attenuation Accuracy 2
VSWR
Trise, Tfall
Ton, Toff
Transients
1 dB Compression
Input IP3
Input IP2
Vcc
Vee
Test Conditions
Any Single Bit
Any Combination of Bits
10% to 90%
50% Control to 90/10% RF
In-Band (peak-peak)
Input Power
Input Power
For two-tone Input Power
Up to +5 dBm
For two-tone Input Power
Up to +5 dBm
Frequency
DC - 0.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.0 GHz
0.05 GHz
0.5 - 2.0 GHz
0.05 GHz
0.5 - 2.0 GHz
0.05 GHz
0.5 - 2.0 GHz
Units Min
Typ
Max
dB — — 2.4
dB — — 2.8
dB — — 3.0
± (0.25 +3% of atten setting in dB) dB
± (0.25 +3% of atten setting in dB) dB
or ± 0.4 dB, whichever is greater
Ratio
— 1.6:1
ns — 9 —
ns — 40 —
mV — 30 —
dBm
+20
dBm
+28
dBm
+40
dBm
+48
dBm
+45
dBm
+68
V 4.5 5.0 5.5
V -8.0 — -5.0
1. All specifications apply when operated with bias voltages of +5V for Vcc and –5.0V for Vee.
2. This attenuator is guaranteed monotonic.

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