STV0042A

STV0042A SATELLITE SOUND AND VIDEO PROCESSORS PRODUCT PREVIEW VIDEO COMPOSITE VIDEO 6-bit 0 to 12.7dB GAIN CONTROL COMPOSITE VIDEO SELECTABLE INVERTER TWO SELECTABLE VIDEO DE-EMPHASIS NETWORKS 4 x 2 VIDEO MATRIX HIGH IMPEDANCE MODE VIDEO OUTPUTS FOR TWIN TUNER APPLICATIONS MISCELLANEOUS 22kHz TONE GENERATIONFOR LNB CONTROL I2C BUS CONTROL : CHIP ADDRESSES = 06HEX LOW POWER STAND-BY MODE WITH ACTIVE AUDIO AND VIDEO MATRIXES . . . . . . . . . . . . . . . . SOUND TWO INDEPENDENT SOUND DEMODULATORS PLL DEMODULATION WITH 5-10MHz FREQUENCY SYNTHESIS PROGRAMMABLE FM DEMODULATOR BANDWIDTH ACCOMODATING FM DEVIATIONS FROM ±30kHz TILL ±400kHz PROGRAMMABLE 50/75µs OR NO DE-EMPHASIS 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 SHRINK42 (Plastic Package) ORDER CODE : STV0042A PIN CONNECTIONS FC R PK IN SUM OUT VOL R S1 VID OUT S2 VID OUT VOL L S2 VID RTN S2 OUT L CLAMP IN S2 OUT R UNCL DEEM VIDEEM2/22kHz V 12V VIDEEM1 V GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 A GND R FC L PK OUT IREF CPUMP R U75 R DET R AMPLK R A 12V VREF A GND L AGC R AMPLK L U75 L DET L CPUMP L GND 5V VDD 5V XTL 0042A-01.EPS DESCRIPTION The STV0042A BICMOS integrated circuit realizes all the necessary signal processing from the tuner to the Audio/Video input and output connectors regardless the satellite sys...