Data brief

For further information contact your local STMicroelectronics sales office.

June 2011

Doc ID 018892 Rev 1

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STVVGLNA

General-purpose, variable-gain, low-noise, RF amplifier

for broadcast receiver applications

Features

■

75-

Ω single-ended input impedance

■

75-

Ω single-ended or 150-Ω differential output

impedance

■

Dual differential or single-ended outputs

■

Single 3.3-V DC supply

■

Input frequency range 50 to 2150 MHz

■

Fully integrated RF AGC with power monitoring

■

Low external component count

■

Low power consumption (145 mW typical)

■

Temperature range -35 °C to 85 °C

■

■

■

Applications

■

Satellite set-top boxes

■

SMATV RF accessories

■

LNBs

■

DVB-T active indoor antennas

Package

■

down (EPD)

■

Environmentally friendly packaging, RoHS

(2002/95/EC) compliant.

Description

The STVVGLNA is a general-purpose, low-noise

amplifier with a gain range of -17 dB to +15 dB. Its

gain is regulated either autonomously by an

integrated AGC loop or by software control.

It can be used, for example, as an input amplifier

for a satellite set-top box.

Figure 1.

STVVGLNA block diagram

STVVGLNA

SCL

SDA

VAGCI

VAGCO

AGC loop

TV1

tuner

DVR

tuner

F

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