GENERAL DESCRIPTION

The SAA7128AH; SAA7129AH encodes digital CB-Y-CR video data to an NTSC, PAL or SECAM CVBS or S-video signal. Simultaneously, RGB or bypassed but interpolated CB-Y-CR signals are available via three additional DACs.

FEATURES

• Monolithic CMOS 3.3 V device, 5 V I2C-bus optional

• Digital PAL/NTSC/SECAM encoder

• System pixel frequency 13.5 MHz

• 54 MHz double-speed multiplexed D1 interface capable of splitting data into two separate channels (encoded and baseband)

• Three Digital-to-Analog Converters (DACs) for CVBS (CSYNC), VBS (CVBS) and C (CVBS) two times oversampled with 10-bit resolution (signals in brackets optional)

• Three DACs for RED (CR), GREEN (Y) and BLUE (CB) two times oversampled with 9-bit resolution (signals in brackets optional)

• Alternatively, an advanced composite sync is available on the CVBS output for RGB display centring

• Real-time control of subcarrier

• Cross-colour reduction filter

• Closed captioning encoding and World Standard Teletext (WST) and North-American Broadcast Text System (NABTS) teletext encoding including sequencer and filter

• Copy Generation Management System (CGMS) encoding (CGMS described by standard CPR-1204 of EIAJ); 20 bits in lines 20/283 (NTSC) can be loaded via I2C-bus

• Fast I2C-bus control port (400 kHz)

• Line 23 Wide Screen Signalling (WSS) encoding

• Video Programming System (VPS) data encoding in line 16 (50/625 lines counting)

• Encoder can be master or slave

• Programmable horizontal and vertical input synchronization phase

• Programmable horizontal sync output phase

• Internal Colour Bar Generator (CBG)

• Macrovision™(1) Pay-per-View copy protection system rev. 7.01 and rev. 6.1 as option; this applies to SAA7128AH only. The device is protected by USA patent numbers 4631603, 4577216 and 4819098 and other intellectual property rights. Use of the Macrovision anti-copy process in the device is licensed for non-commercial home use only. Reverse engineering or disassembly is prohibited. Please contact your nearest Philips Semiconductors sales office for more information

• Controlled rise/fall times of output syncs and blanking

• On-chip crystal oscillator (3rd-harmonic or fundamental crystal)

• Down mode (low output voltage) or power-save mode of DACs

• QFP44 package.