Looking for more information on our wideband LNAs supporting multi-tuner applications in TVs, DVR/PVRs, and STBs?
See section 2.3.1 LNAs with programmable gain & bypass option for improved tuner performance.
1.3 TV and satellite
1.3.1
Network interface module (NIM) for TV reception
Products
by application
17
Application diagram
RF input
surge
VGA
CONVENTIONAL
TUNER OR
SILICON TUNER
RF SW
WB LNA
RF output
brb403
Recommended products
Function
Product
V
cc
(V)
5
Gain (db)
10
10
5
-2
10
5
5
-2
LNA
MMIC
3.3
10
10
3.3
-2
3.3
14
14
3.3
-2
Package
Type
Product highlight:
Make a high-performance active splitter in a NIM tuner
with the BGU703x/ BGU704x
Today's TV tuners require complicated signal handling and benefit
from flexibility in design. The front-end of a TV signal receiver is
no longer just a tuned receiver, but has evolved into an RF network
interface module (NIM) with tuned demodulators, active splitters,
and remodulators. The active splitter requires an LNA with excellent
linearity. NXP has developed two new series of LNA/VGA MMICs
(BGU703x/BGU704x), designed especially for high linearity (P3O
of 29 dBm) in low-noise applications such as an active splitter in a
NIM tuner. The BGU703x family operates at a supply voltage of 5 V
and is intended for use with normal can tuners. The BGU704x family
operates at 3.3 V and works seamlessly with our Si tuner ICs, which
also operate at 3.3 V.
NXP Semiconductors RF Manual 16
th
edition
PHILIPS [ NXP SEMICONDUCTORS ]
