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Data brief
For further information contact your local STMicroelectronics sales office.
June 2011 Doc ID 018892 Rev 1 1/4
4
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
■ Compatible with 5-V and 3.3-V I
2
C bus
■ I
2
C bus control (option)
■ Four selectable I
2
C addresses C8,CA,CC,CE
Applications
■ Satellite set-top boxes
■ SMATV RF accessories
■ LNBs
■ DVB-T active indoor antennas
Package
■ VFQFPN-16L 3x3x0.85 mm
3
with exposed pad
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 SDAVAGCI VAGCO
AGC loop
I
2
C
TV1
tuner
DVR
tuner
F
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