SDA5649 Datasheet | Siemens Semiconductor Group

Features q Single-chip receiver for PDC data, broadcast either q q q q q q q q q q q q - in Broadcast Data Service Packet (BDSP) 8/30/2 according to CCIR teletext system B, or - in dedicated line no. 16 of the vertical blanking interval (VPS) Reception of Unified Date and Time (UDT), Network Identification code (NIC), and Short Program Label (SPL) broadcast in BDSP 8/30/1 Reception of bytes no.38 through 45 of teletext header row containing clock time Low external ponents count On-chip data and sync slicer I2C-Bus interface for munication with external microcontroller Selection of PDC/VPS operating mode software controlled by I2C-Bus register Pin and software patible to PDC/VPS Decoder SDA 5648 Supply voltage: 5 V ± 10 % Video input signal level: 0.7 Vpp to 1.4 Vpp Technology: CMOS Package: P-DIP-14-3 and P-DSO-20-1 Operating temperature range: 0 to 70 °C Ordering Code Q67100-H5156 Q67106-H5157 P-DIP-14-3 P-DSO-20-1 Type SDA 5649 SDA 5649X Functional Description Package P-DIP-14-3 P-DSO-20-1 Tape & Reel The CMOS circuit SDA 5649 is intended for use in video cassette recorders to retrieve control data of the PDC system from the data lines broadcast during the vertical blanking interval of a standard video signal. The SDA 5649 is devised to handle PDC data transported either in Broadcast Data Service Packet (BDSP) 8/30 format 2 (bytes no. 13 through 25) of CCIR teletext system B or in the dedicated data line no. 16 in the case of VPS. Semiconductor Group SDA 5649 SDA 5649X Furthermore it is able to receive the Unified Date and Time (UDT) information transmitted in bytes no. 15 through 21, the Network Identification code (NIC) carried in bytes no. 13 and 14, and the Short Program Label carried in bytes no. 22 through 25 of packet 8/30 format 1. For reception of clock time when no BDSP 8/30/1 is present the SDA 5649 can be enabled to extract bytes no. 38 through 45 of the teletext header row. All operating modes (PDC/VPS) are selected by a control...