General Description

The PDC plus SDA 5650 decoder chip receives all VPS and 8/30 Format 1 and 2 data together with the teletext header information for easy identification of broadcast transmitter. The SDA 5650 includes a storage capacity of 16 bytes which can be used in different ways depending on selected modes.

Features

? Single chip receiver for PDC data for

Broadcast Data Service Packet (BDSP 8/30/2

according to CCIR teletext system B.)

VPS Data in dedicated line no. 16 of the vertical

blanking interval (VBI)

? Reception of BDSP packet 8/30/1

Unified Date and Time (UDT)

Network indentification code (NIC)

Short program label (SPL)

? Reception of teletext header row

Bytes no. 14 - 45 containing date, clock time and identification

? On chip data slicer

? Low external component count

? I2C-Bus interface

Communication with external microcontroller

? PDC/VPS operation mode selectable via I2C-Bus register

? Pin and software compatible to PDC/VPS decoder SDA 5649

? 5 V supply voltage

? Video input signal level: 0.7 Vpp to 2.0 Vpp

? Technology: CMOS

? P-DIP-14-1 and P-DSO-20-1 package