The STV0056ABICMOS integrated circuit realizes all the necessary signal processing from the tuner to the Audio/Video input and output connectors regardless the satellite system.
SOUND
. TWO INDEPENDENT SOUND DEMODULA TORS
. PLL DEMODULATION WITH 5-10MHz FREQUENCY SYNTHESIS
. PROGRAMMABLE FM DEMODULATOR BANDWIDTH ACCOMODATING FM DEVIATIONS FROM ±30kHz TILL ±400kHz
. PROGRAMMABLE 50/75µs, J17 OR NO DEEMPHASIS
. WEGENER PANDA SYSTEM
. 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
. 6 x 3 VIDEO MATRIX
. BLACK LEVEL ADJUSTABLE OUTPUT FOR ON-BOARD VIDEOCRYPT DECODER
. HIGH IMPEDANCE MODE VIDEO OUTPUTS FOR TWIN TUNER APPLICATIONS
MISCELLANEOUS
. 22kHz TONE GENERATION FOR LNB CONTROL
. I2C BUS CONTROL CHIP ADDRESSES = 06HEX OR 46HEX
. LOW POWER STAND-BY MODE WITH ACTIVE AUDIO AND VIDEO MATRIXES