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SAB9077 Datasheet(PDF) 2 Page - NXP Semiconductors |
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SAB9077 Datasheet(HTML) 2 Page - NXP Semiconductors |
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2 / 32 page  1996 Aug 07 2 Philips Semiconductors Preliminary specification Picture-In-Picture (PIP) controller SAB9077H FEATURES Display • 50/60 Hz PIP modes possible • Twin PIP in interlaced mode at 8-bit resolution • Sub-title mode features built in • Large display fine positioning area, both channels independent • Only 2 Mbit needed as external VDRAM (2 × 1 Mbit or 1 × 2 Mbit) • Four 8-bit Analog-to-Digital Converters (ADCs; > 7-bit performance) with clamp circuit • Most PIP modes handle interlaced pictures without joint line error • Two PLLs which generate the line-locked clocks for the acquisition channels • Display PLL to generate line-locked clock for the display • Three 8-bit Digital-to-Analog Converters (DACs) • 4:1:1 data format • Data reduction factors 1 to 1, 1 to 2, 1 to 3 and 1 to 4, horizontal and vertical independent. I2C-bus programmable • Single and double PIP modes can be set • Full field still mode available • Several aspect ratios can be handled • Reduction factors can be set freely • Selection of vertical filtering type • Freeze of live pictures • Fine tuned display position, H (8-bit), V (8-bit), both channels independent • Fine tuned acquisition area, H (4-bit), V (8-bit), both channels independent • Eight main borders, sub-borders and background colours available • Border and background brightness adjustable, 30%, 50%, 70% and 100% IRE • Several type of decoder input signals can be set. GENERAL DESCRIPTION The SAB9077H is a picture-in-picture controller for multi-standard TV-sets. The circuit contains ADCs, reduction circuitry, memory control, display control and DACs. It inserts one or two live video signals with original or reduced sizes into a live video signal. All video signals are expected to be analog base band signals. The conversion into the digital environment and back to the analog environment is done on chip. Internal clocks are generated by two acquisition PLLs and a display PLL. The two PIP channels and a large external memory offer a wide range of PIP modes. The emphasis is put on single PIP, double PIP, split-screen mode and many multi-PIP modes. |
Similar Part No. - SAB9077 |
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Similar Description - SAB9077 |
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