器件名称: 271LP4E
功能描述: 1 dB LSB GaAs MMIC 5-BIT SERIAL CONTROL DIGITAL ATTENUATOR, 0.7 - 3.7 GHz
文件大小: 500.86KB 共8页
简 介:HMC271LP4 / 271LP4E
v02.0705
1 dB LSB GaAs MMIC 5-BIT SERIAL CONTROL DIGITAL ATTENUATOR, 0.7 - 3.7 GHz
Features
1 dB LSB Steps to 31 dB CMOS Compatible Serial Data Interface SPI Compatible Serial Output +/- 0.4 dB Typical Bit Error 4 x 4 mm QFN Plastic Package Included in the HMC-DK004 Designer’s Kit
Designer’s Kit Available
Typical Applications
6
ATTENUATORS - SMT
The HMC271LP4 / HMC271LP4E is ideal for: Cellular/3G Infrastructure Fixed Wireless, WiMax & WiBro Test Instrumentation
Functional Diagram
General Description
The HMC271LP4 & HMC271LP4E are broadband 5-bit positive control GaAs IC digital attenuators with CMOS compatible serial-to-parallel drivers in low cost leadless QFN 4x4 mm SMT packages. Covering 0.7 to 3.7 GHz, the insertion loss is typically less than 2.5 dB. The attenuator bit values are 1 (LSB), 2, 4, 8, and 16 dB for a total attenuation of 31 dB. Accuracy is excellent at ± 0.4 dB typical with an IIP3 of up to +48 dBm. Five bit CMOS compatible serial control words are used to select each attenuation state. A single Vcc bias of +3V to +5V applied through an external 5k Ohm resistor is required.
Electrical Specifications, TA = +25° C, Vcc = +3V to +5V
Parameter Frequency 0.7 - 1.4 GHz 1.4 - 2.3 GHz 2.3 - 2.7 GHz 2.7 - 3.7 GHz 0.7 - 3.7 GHz 0.7 - 1.4 GHz 1.4 - 2.7 GHz 2.7 - 3.7 GHz 0.7 - 0.9 GHz 0.9 - 2.2 GHz 2.2 - 3.7 GHz Vcc = 5V Vcc = 3V Vcc = 5V Vcc = 3V 0.7 - 3.7 GHz 0.7 - 3.7 GHz Min. Typical 1.9 2.3 2.6 2.8 31 12 15 16 ± (0.4 + 5% of Atten. S……
