ST92195B - GENERAL INFORMATION
GENERAL DESCRIPTION (Cont’d)
1.1.7 Teletext, VPS and WSS Data Slicers
The three on-board data slicers using a single ex- ternal crystal are used to extract the Teletext, VPS and WSS information from the video signal. Hard- ware Hamming decoding is provided.
1.1.8 Voltage Synthesis Tuning Control
14-bit Voltage Synthesis using the PWM (Pulse Width Modulation)/BRM (Bit Rate Modulation) technique can be used to generate tuning voltages for TV set applications. The tuning voltage is out- put on one of two separate output pins.
1.1.9 PWM Output
Control of TV settings can be made with up to eight 8-bit PWM outputs, with a maximum frequen- cy of 23,437Hz at 8-bit resolution (INTCLK = 12 MHz). Low resolutions with higher frequency oper- ation can be programmed.
1.1.10 Serial Peripheral Interface (SPI)
The SPI bus is used to communicate with external devices via the SPI, or I²C bus communication standards. The SPI uses a single data line for data input and output. A second line is used for a syn- chronous clock signal.
1.1.11 Standard Timer (STIM)
The ST92195 has one Standard Timer that in- cludes a programmable 16-bit down counter and an associated 8-bit prescaler with Single and Con- tinuous counting modes.
1.1.12 Analog/Digital Converter (ADC)
In addition there is a 4-channel Analog to Digital Converter with integral sample and hold, fast 5.75µs conversion time and 6-bit guaranteed reso- lution.
