F0448 datasheet(1/43 Pages) RENESAS

Part #	F0448

Description	Dual Matched Broadband RF DVGA 3.3GHz to 4.2GHz

PDF	43 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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Datasheet

F0448

Dual Matched Broadband RF DVGA 3.3GHz to 4.2GHz

X0008129 Rev.1.4

Feb 17, 2021

Page 1

The F0448 is a 3.3GHz to 4.2GHz 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.

Figure 1. Block Diagram

Features

■

RF Frequency Range: 3.3GHz to 4.2GHz

■

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

Applications

■

Multi-mode, Multi-carrier Receivers

■

PHS/PAS Base Stations

■

Distributed Antenna Systems

■

Digital Radio

DATA

CLK

CSb

RFIN_A

RFIN_B

RFOUT_A

RFOUT_B

DSA0A

DSA2A

F0448

STBY

RF AMP A

Glitch - Free TM

Zero - Distortion TM

VCTRL0

DSA1A

6dB

23dB

18dB

VCTRL1

VCTRL2

RF AMP B

6dB

23dB

18dB

DSA0B

DSA2B

DSA1B

Decode

Logic / Bias

2

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