器件名称: AT-266_1
功能描述: Digital Attenuator, 1-Bit, 10dB Step, DC-2.0 GHz
文件大小: 218.75KB 共3页
简 介:Digital Attenuator, 1 Bit, 10 dB Step DC - 2.0 GHz
Features
Single 10 dB Step Low Loss: 0.3 dB @ 900 MHz Low Cost SOT-25 Package
AT-266 V4
Functional Block Diagram
Description
M/A-COM’s AT-266 is a 1 bit, 10 dB step GaAs MMIC digital attenuator in a low cost SOT-25 surface mount plastic package. The AT-266 is ideally suited for use where high accuracy, very low power consumption and low intermodulation products are required. Typical applications include radio, wireless LANs, GPS equipment and other gain/level control circuits. The AT-266 is fabricated using a mature GaAs MMIC process featuring full chip passivation for increased performance and reliability.
Pin Configuration
Pin No. Function
RF1 GND RF2 V1 V2
Description
RF In/Out RF Ground RF In/Out Control Voltage Control Voltage
Ordering Information
Part Number
AT-266 AT-266TR
1 2
Package
Bulk Packaging 1000 piece reel
3 4 5
Note: Reference Application Note M513 for reel size information.
Truth Table 3,4,5
V1 V2
1 0
Attenuation State
10 dB Insertion Loss
Absolute Maximum Ratings 1,2
Parameter
Input Power 50 MHz 500 - 2000 MHz Control Voltage Operating Temperature Storing Temperature
0 1
Absolute Maximum
+27 dBm +34 dBm -8.5 V < Vc < +8 V -40°C to +85°C -65°C to +150°C
3. For positive voltage control, external DC blocking capacitors are required on all RF ports (pins 1, 2 and 3). 4. Differential voltage, V(state 1) - V(state 0), must be +2.8 V minimum and less than 8 V. 5. 0 = -8 V to 0.2 V, 1 = -0.2 V to ……
