
NXP Semiconductors.
General description
The SAA7102; SAA7103 is used to encode PC graphics data at maximum 800 × 600 resolution to PAL (50 Hz) or NTSC (60 Hz) video signals. A programmable scaler and interlacer ensures properly sized and flicker-free TV display as CVBS or S-video output.
FEATUREs
■ Digital PAL/NTSC encoder with integrated high quality scaler and anti-flicker filter for TV output from a PC
■ 27 MHz crystal-stable subcarrier generation
■ Maximum graphics pixel clock 45 MHz at double edged clocking, synthesized on-chip or from external source
■ Up to 800 × 600 graphics data at 60 Hz or 50 Hz with programmable underscan range.
■ 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 from 1 : 1 to 1 : 2 and up to 20 % upscaling
■ 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 45 MHz)
■ 3 × 256 bytes RGB Look-Up Table (LUT)
■ Support for hardware cursor
■ Programmable border color of underscan area
■ 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
■ 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 and rev. 6.1 as option; this applies to the SAA7102 only
■ Power-save modes
■ Joint Test Action Group (JTAG) Boundary Scan Test (BST)
■ Monolithic CMOS 3.3 V device, 5 V tolerant I/Os
■ QFP44 and LBGA156 packages
■ Same footprint as SAA7108E; SAA7109E