DESCRIPTION
The STV0042ABICMOS integrated circuit realizes all the necessary signal processing from the tuner to the Audio/Video input and output connectors regardless the satellite system.
The STV0042 is intended for low cost satellite receiver application.

SOUND
. TWOINDEPENDENTSOUNDDEMODULATORS
. PLL DEMODULATION WITH 5-10MHz FREQUENCY SYNTHESIS
. PROGRAMMABLE FM DEMODULATOR BANDWIDTH ACCOMODATING FM DEVIA TIONS FROM ±30kHz TILL ±400kHz
. PROGRAMMABLE 50/75µs OR NO DE-EM PHASIS
. DYNAMIC NOISE REDUCTION
. ONE OR TWO AUXILIARY AUDIO INPUTS AND OUTPUTS
. GAIN CONTROLLED AND MUTEABLE AUDIO OUTPUTS
. HIGH IMPEDANCE MODE AUDIO OUTPUTS FOR TWIN TUNER APPLICATIONS

VIDEO
. COMPOSITE VIDEO 6-bit 0 to 12.7dB GAIN CONTROL
. COMPOSITE VIDEO SELECTABLE IN VERTER
. TWO SELECTABLE VIDEO DE-EMPHASIS NETWORKS
. 4 x 2 VIDEO MATRIX
. HIGH IMPEDANCE MODE VIDEO OUTPUTS FOR TWIN TUNER APPLICATIONS

MISCELLANEOUS
. 22kHzTONEGENERATIONFORLNBCONTROL
. I2C BUS CONTROL : CHIP ADDRESSES = 06HEX
. LOW POWER STAND-BY MODE WITH ACTIVE AUDIO AND VIDEOMATRIXES