SKY12347-362LF中文资料DC-3.0 GHz Six-Bit Digital Attenuator with Serial or Parallel Driver (0.5 dB LSB)数据手册Skyworks规格书

描述 Description

Please note: SKY12347-362LF is being discontinued and is not recommended for new designs. The suggested replacement are SKY12325-350LF, SKY12338-337LF, SKY12348-350LF, SKY12355-337LF Please note: SKY12347-362LF is not recommended for new design. The suggested replacements are SKY12355-337LF,SKY12348-350LF,SKY12338-337LF orSKY12325-350LF..

The SKY12347-362LF is a GaAs pHEMT six-bit broadband digitalattenuator with a 0.5 dB Least Significant Bit (LSB). A Transistor-to-Transistor Logic (TTL)/CMOS-compatible, dual-mode serial orparallel interface controller is integrated into the device.

The attenuator features low insertion loss, excellent attenuationaccuracy, a 31.5 dB attenuation range, and high linearityperformance. The SKY12347-362LF is an ideal choice for a widevariety of cellular 3G and 4G infrastructure applications.

Attenuation is controlled by a Serial Peripheral Interface (SPI).Depending on the SPI sequence applied to the SDI pin, theattenuation state between the RF1 and RF2 pins can varybetween a low insertion loss state or up to 31.5 dB. The D0through D5 DC control pins determine the attenuation state ifparallel mode is enabled.

The device is provided in a 4 x 4 mm, 24-pin Quad Flat No-Lead(QFN) package.

特性 Features

• Broadband operation: DC to 3.0 GHz
• Attenuation: 31.5 dB with 0.5 dB LSB
• TTL/CMOS-compatible serial, parallel, or latched parallel control interface
• Single supply voltage: +3.3 or +5 V
• Small, QFN (24-pin, 4 x 4 mm) package (MSL1, 260 °C per JEDEC J-STD-020)

简介

SKY12347-362LF属于RF/IF射频/中频RFID的衰减器。由Skyworks制造生产的SKY12347-362LF衰减器衰减器旨在降低信号功率，同时尽量减少其对波形的影响。衰减值的范围为 0 dB 至 69 dB，频率范围为 0 至 86 GHz。