STV6437 Datasheet, PDF (1/4 Pages) STMicroelectronics – Audio/video buffer and four-channel SD/PS/HD video filter

STV6437
Audio/video buffer and four-channel SD/PS/HD video filter
Data brief
Features
■ I²C bus control
■ Video section:
– Selectable 7-MHz/15-MHz/30-MHz, low-
pass filters, plus bypass, on three encoder
video inputs
– 7-MHz, low-pass filter on one encoder
video input
– DC-coupled inputs
– Each output is capable of driving an AC- or
DC-coupled, 150-Ω video load at 3 V pp
and CVBS output can drive a dual, 75-Ω
video load
– Fixed gain of 6 dB for each channel
– Selective video output muting of HD and
SD channels
■ Audio section:
– Stereo sound capability
– Differential or single-ended audio inputs
– Audio outputs drive 2-kΩ loads at 3 V RMS
– Selectable audio gain of 0 to 28 dB
– Audio output muting
– 9 V to 12 V single supply operation
– Pop-noise suppression management
■ Low power mode
– Audio/video standby function
VFQFPN-28 EPD 5× 5 × 1 mm³
(28-pin very fine quad flat pack with exposed pad
Applications
■ Set-top boxes (IP, cable, satellite, terrestrial)
■ Integrated digital TV plug-in
■ Blu-ray and DVD players
Description
The STV6437 is a fully integrated solution for
filtering and buffering standard-definition,
progressive-scan and high-definition signals, and
buffering stereo audio signals from the MPEG
decoder of a digital receiver, Blu-ray or DVD
player, or iDTV plug-in.
The STV6437 embeds four buffers with low-pass
filters, three for HD (selectable 7/15/30 MHz) and
one for SD (7 MHz), and a dual audio amplifier
that operates with either differential or single-
ended inputs.
Table 1. Device summary
Order code
Temperature range
STV6437AJ
0 to 70 °C
STV6437AJT
0 to 70 °C
Package
VFQFPN-28 (5 × 5 mm²)
EPD
VFQFPN-28 (5 × 5 mm²)
EPD
Packaging
Tray
Tape and reel
August 2011
Doc ID 019028 Rev 1
For further information contact your local STMicroelectronics sales office.
1/4
www.st.com
4