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F0448 Datasheet(PDF) 1 Page - Renesas Technology Corp |
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F0448 Datasheet(HTML) 1 Page - Renesas Technology Corp |
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1 / 35 page  Dual Matched Broadband RF DVGA 3.4GHz to 3.8GHz F0448 Datasheet © 2018 Integrated Device Technology, Inc. 1 October 24, 2018 Description The F0448 is a 3.4GHz to 3.8GHz dual RF digital variable gain amplifier (DVGA) designed for use in receivers. This dual RF DVGA provides two independent receiver channels each with 13dB typical maximum gain and 6dB noise figure designed to operate with a single +5V supply. For each channel, gain control is split into three separate attenuators: DSA0, a single 6dB step using a single control pin; DSA1, a 23dB SPI-controlled gain adjustment in 1dB steps; and DSA2, includes 18dB attenuation in 6dB steps controlled using two control pins. The F0448 offers +37dBm nominal output IP3 using 220mA total ICC. This device is packaged in a 6 × 6 mm, 36-QFN with 50Ω single- ended RF input and RF output impedances for ease of integration into the signal-channel lineup for each of the two channels. Competitive Advantage High reliability High linearity Low DC current Zero DistortionTM technology GlitchFreeTM technology Typical Applications Multi-mode, Multi-carrier Receivers PHS/PAS Base Stations Distributed Antenna Systems Digital Radio Features RF Frequency Range: 3.4GHz to 3.8GHz Dual Channel RF amp and DSAs for Diversity / MIMO Receivers < 2dB overshoot between DSA transitions 13dB typical maximum gain at 3.6GHz DSA0: Single 6dB coarse step DSA1: 23dB total gain range in 1dB steps DSA2: 18dB gain range in 6dB steps +37dBm OIP3 at 3.6GHz 6dB Noise figure at 3.6GHz +5V Supply voltage ICC = 220mA Independent standby: 7mA standby current SPI interface for DSA1 1-bit control for DSA0 2-bit control for DSA2 50Ω input and output impedance Internally matched Temperature range: -40°C to +105°C 6 × 6 × 0.75 mm 36-QFN package Block Diagram DATA CLK CSb RFIN_A RFIN_B RFOUT_A RFOUT_B DSA0A DSA2A F0448 STBY RF AMP A Glitch - Free TM Glitch - Free TM Zero - Distortion TM Zero - Distortion TM VCTRL0 DSA1A 6dB 23dB 18dB VCTRL1 VCTRL2 RF AMP B 6dB 23dB 18dB DSA0B DSA2B DSA1B Decode Logic / Bias 2 2 2 2 2 |
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