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