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PDF AT-267 Data sheet ( Hoja de datos )
| Número de pieza | AT-267 | |
| Descripción | Digital Attenuator/ 1 Bit/ 15 dB Step DC - 2.0 GHz | |
| Fabricantes | Tyco Electronics | |
| Logotipo |  |
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Digital Attenuator, 1 Bit, 15 dB Step
DC - 2.0 GHz
V 2.00
Features
Single 15 dB Step
Low Loss, 0.3 dB Typical @ 900 MHz
2.7 to 5.0 Volt Operation
Insertion Loss, Attenuation insensitive to Control
Voltage
Low Cost SOT-25 Plastic Package
Tape and Reel Packaging Available
Description
M/A-COM’s AT-267 is a 1 bit, 15 dB step GaAs MMIC
digital attenuator in a low cost SOT-25 5 lead surface
mount plastic package. The AT-267 is ideally suited for
use where high accuracy, very low power consumption and
low intermodulation products are required.
Typical applications include wireless handsets, base
stations, wireless LAN equipment, GPS receivers and any
RF applications with automatic gain/level control circuits.
The AT-267 is fabricated as a monolithic GaAs integrated
circuit using a proven self-aligned gate process. The
process features full chip passivation for performance and
reliability.
Truth Table 1, 2, 3
Mode
(Control)
Positive1
Postitive/
Negative1,2
Negative3
V1
0 ± 0.2 V
+2.5 V to +5 V
-Vc ± 0.2 V
+Vc
0 ± 0.2 V
-2.5 V to -5 V
V2
+2.5 V to +5 V
0 ± 0.2 V
+Vc
-Vc ± 0.2 V
-2.5 V to -5 V
0 ± 0.2 V
Atten
15 dB
IL
15 dB
IL
IL
15 dB
1. External DC blocking capacitors are required as noted*
2. |-Vc|+ Vc 8 V
3. If negative control is used, DC blocking capacitors are not
required on RF Ports and Ground.
Functional Schematic
PIN 5
V2
V1
PIN 1
RF1 GND RF2
Positive Control Voltage
V2 V1
54
1 23
39 pF 39 pF
RF1 GND
39 pF
RF2
Absolute Maximum Ratings1
Parameter
Absolute Maximum
Maximum Input Power
+21 dBm
Control Voltage VCTL
-8 V
Operating Temperature
-40° C to +85° C
Storage Temperature
-65° C to +150° C
1. Exceeding any one or a combination of these limits may
cause permanent damage.
1 page | ||
| Páginas | Total 3 Páginas | |
| PDF Descargar | [ Datasheet AT-267.PDF ] | |
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