TDA6048-5X

Multistandard Sound IF with Vision Carrier Input Preliminary Data Features q High input sensitivity q Low distortion for AM-sound application q AM detector is alignmentfree q Few external components q Selectable IF inputs low crosstalk q Intercarrier output for quasi parallel sound application q All pins are ESD protected TDA 6048-5X Bipolar IC P-DSO-14-1 Type TDA 6048-5X Ordering Code Q67000-A5061 Package P-DSO-14-1 (SMD) Functional Description Multistandard sound IF with two selectable IF inputs. The selection between the two IF inputs is made by applying ground to a special IF-select pin, or by leaving it in a high impedance state. Both IF inputs are symmetrical inputs. There are two possible ways of processing the select sound IF: An audio frequency signal is available after amplifying and demodulating a selected AM sound IF signal (e.g. L standard). For applications with quasi parallel sound a selected FM-sound IF is mixed with a picture carrier which is applied symmetrically to a picture carrier input stage (e.g. B/G standard). The difference of both, picture carrier and FM-sound IF, is available for further processing. A three-level switch defines the activating of the AM- and/or FM-signal path. So, three modes of operating are possible: AM sound ON difference frequency OFF OFF ON ON ON Application For use in multistandard VCR- and TV sets. Pin Functions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Function IF input 1 IF input 1 AGC-time constant AM-sou...