SDA5642X

SDA 5642 SDA 5642X 1-Chip-VPS-Decoder Preliminary Data Features µC SDA 5642 SDA 5642X MOS IC suitable VPS data editing direct from CVBS signal n-channel MOS Generating of the line synchronous 5-MHz clock for the time base and data clock by means of PLL operation Very few external components necessary Adaptative data separation Frame signal recognition Decoder for line 16 Bi-phase and start code checking I2C-Bus interface Operating voltage: 5 V Video input signal level 1 … 2.0 Vpp P-DIP-14-1 P-DSO-20-1 Type SDA 5642 SDA 5642X Ordering Code Q67100-H8547 Q67100-H8637 Package P-DIP-14-1 P-DSO-20-1 Functional Description The MOS circuit SDA 5642 is used to retrieve the required data for the Video Program System (VPS) service from the data line No. 16 which is included in the CVBS signal. These data are decoded according to the specification given in "Richtlinie ARD/ZDF Nr. 8 R 2". This circuit incorporates the digital functions of the VPS decoder SDA 5640 and the analog functions of the video processor SDA 5232 on one chip. Together with a reduced number of external components this chip is a low cost solution for the VPS detector. The single chip solution can retrieve the data from line 16 of the CVBS signal. These data are decoded, checked for transmission errors and are stored in registers for further processing by a microcontroller. The I2C-Bus interface is used for communication of a microcontroller with the VPS-decoder. The recording of programs by a VTR is controlle...