DESCRIPTION
●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
