General description
The SAA7104E; SAA7105E is an advanced next-generation video encoder which converts PC graphics data at maximum 1280 × 1024 resolution (optionally 1920 × 1080 interlaced) to PAL (50 Hz) or NTSC (60 Hz) video signals. A programmable scaler and anti-flicker filter (maximum 5 lines) ensures properly sized and flicker-free TV display as CVBS or S-video output.
Alternatively, the three Digital-to-Analog Converters (DACs) can output RGB signals together with a TTL composite sync to feed SCART connectors.

FEATUREs
■ Digital PAL/NTSC encoder with integrated high quality scaler and anti-flicker filter for TV output from a PC
■ Supports Intel Digital Video Out (DVO) low voltage interfacing to graphics controller
■ 27 MHz crystal-stable subcarrier generation
■ Maximum graphics pixel clock 85 MHz at double edged clocking, synthesized on-chip or from external source
■ Programmable assignment of clock edge to bytes (in double edged mode)
■ Synthesizable pixel clock (PIXCLK) with minimized output jitter, can be used as reference clock for the VGC, as well
■ PIXCLK output and bi-phase PIXCLK input (VGC clock loop-through possible)
■ Hot-plug detection through dedicated interrupt pin
■ Supported VGA resolutions for PAL or NTSC legacy video output up to 1280 × 1024 graphics data at 60 Hz or 50 Hz frame rate
■ Supported VGA resolutions for HDTV output up to 1920 × 1080 interlaced graphics data at 60 Hz or 50 Hz frame rate
■ Three Digital-to-Analog Converters (DACs) at 27 MHz sample rate for CVBS (BLUE, CB), VBS (GREEN, CVBS) and C (RED, CR) (signals in parenthesis are optional); all at 10-bit resolution
■ Non-Interlaced (NI) CB-Y-CR or RGB input at maximum 4 : 4 : 4 sampling
■ Downscaling and upscaling from 50 % to 400 %
■ Optional interlaced CB-Y-CR input of Digital Versatile Disc (DVD) signals
■ Optional non-interlaced RGB output to drive second VGA monitor (bypass mode with maximum 85 MHz)
■ 3 bytes × 256 bytes RGB Look-Up Table (LUT)
■ Support for hardware cursor
■ HDTV up to 1920 × 1080 interlaced and 1280 × 720 progressive, including 3-level sync pulses
■ Programmable border color of underscan area
■ Programmable 5 line anti-flicker filter
■ On-chip 27 MHz crystal oscillator (3rd-harmonic or fundamental 27 MHz crystal)
■ Fast I2C-bus control port (400 kHz)
■ Encoder can be master or slave
■ Adjustable output levels for the DACs
■ Programmable horizontal and vertical input synchronization phase
■ Programmable horizontal sync output phase
■ Internal Color Bar Generator (CBG)
■ Optional support of various Vertical Blanking Interval (VBI) data insertion
■ Macrovision Pay-per-View copy protection system rev. 7.01, rev. 6.1 and rev. 1.03 (525p) as option; this applies to the SAA7104E only
■ Optional cross-color reduction for PAL and NTSC CVBS outputs
■ Power-save modes
■ Joint Test Action Group (JTAG) Boundary Scan Test (BST)
■ Monolithic CMOS 3.3 V device, 5 V tolerant I/Os