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ST92185B3T1 Fiches technique(PDF) 7 Page - STMicroelectronics |
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ST92185B3T1 Fiches technique(HTML) 7 Page - STMicroelectronics |
7 / 178 page 7/178 ST92185B - GENERAL DESCRIPTION INTRODUCTION (Cont’d) 1.1.6 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. 1.1.7 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. 1.1.8 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. 1.1.9 Standard Timer (STIM) The ST92185B has one Standard Timer (STIM0) that includes a programmable 16-bit down counter and an associated 8-bit prescaler with Single and Continuous counting modes. 1.1.10 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. |
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