DESCRIPTION

The STV5730A IC is intended to be used in VCR, Satellitereceiver and PAY-TV systems for CVBS or R/G/B text/graphics insertion.

• A CHARACTER GENERATOR WITH ASCII RAM AND CHARACTER ROM :

- 128 characters

- 12 dots x 18 lines character composition

- 11 rows x 28 characters page composition

• ACCURATE INTERNAL BANDGAP VOLTAGE REFERENCE

• LINE LOCKED PLL

• VIDEO TIMING GENERATOR

• INPUT CVBS CLAMP AND SYNC EXTRACTOR

• VERTICAL SYNC SEPARATOR

• INPUT CVBS SYNC RE-INSERTION

• INPUT CVBS PRESENCE DETECTOR

• PAL/NTSC CHROMA ENCODER

• DEDICATED PINS FOR LUMA AND CHROMA EXTERNAL FILTERING

• GAIN ON CVBS OUTPUT FOR EITHER 0dB OR 6dB CAPABILITY

• MULTISTANDARD TRANSLUCENT MIXED MODE

• OPAQUE MIXED MODE

• NORMAL FULL PAGE MODE

• VIDEO FULL PAGE MODE

• SUITABLE FOR S-VHS

• THREE DIFFERENT MARKERS CAN BE GENERATED SIMULTANEOUSLY

• THREE WIRE SERIAL INTERFACE FOR MICROPROCESSOR CONTROL