SAA7148AH
SAA7148AH Description
Digital video encoder
SAA7148AH Vendor
Philips Semiconductors
SAA7148AH Categories
SAA7148AH Features
  • Monolithic CMOS 3.3 V device, 5 V I²C-bus optional
  • Digital PAL/NTSC 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 (CBtwo 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)
  • MacrovisionTM(1)Pay-per-View copy protection system rev. 7.01 and rev. 6.1 as option; this applies to SAA7148AH 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.
SAA7148AH Datasheet and Application Notes
Products related to SAA7148AH
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