STV2180A Datasheet | STMicroelectronics

BASE BAND CHROMA DELAY LINE - . . PRELIMINARY DATA DUAL SWITCHED CAPACITOR DELAY LINE 3MHz CLOCK DERIVED FROM 6MHz VCO LOCKED BY THE BURST GATE PULSE SAMPLE AND HOLD CIRCUITS AND LOWPASS FILTERS TO SUPPRESS THE 3MHz CLOCK RESIDUAL CLAMPED B-Y AND R-Y INPUTS OUTPUT BUFFERS ADJUSTMENT-FREE APPLICATION DIP14 PACKAGE DIP14 (Plastic Package) ORDER CODE : STV2180A DESCRIPTION The STV2180Ais an integrated base band chroma delay line with one line delay, which has been designed to match chroma decoders with colour difference signal outputs (R-Y) and (B-Y). PIN CONNECTIONS Not to Be Connected R-Y INPUT NC R-YI 1 2 3 4 5 6 7 14 13 B-YI NC B-Y INPUT Not to Be Connected R-Y OUTPUT B-Y OUTPUT PLL LOOP FILTER SUPER SAND CASTLE R-YO B-YO FPLL SSC 12 11 10 9 8 AGND ANALOG GROUND VCC VINT IREF NC SUPPLY VOLTAGE INTERNAL SUPPLY REF. CURRENT Not to Be Connected DIGITAL GROUND DGND February 1997 This is advance information on a new product now in development or undergoing evaluatio n. Details are subject to change without notice. 1/6 2180A-01.EPS BLOCK DIAGRAM R-YI 2 INPUT CLAMP DELAY LINE SAMPLE AND HOLD R-YO LPF 3 B-YI 14 INPUT CLAMP DELAY LINE SAMPLE AND HOLD B-YO LPF 4 SSC 6 SSC SELECT 6MHz PLL AND CLOCK...