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STA1050 Fiches technique(PDF) 8 Page - STMicroelectronics |
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STA1050 Fiches technique(HTML) 8 Page - STMicroelectronics |
8 / 11 page System description STA1050 8/11 3 System description Figure 2. Complete CD Module application STA1050 is an high integration, high performance chip which integrates most required components for CD module application. The only external components needed are: – a ceramic oscillator with a nominal frequency of 33.8688 MHz. All frequencies needed in STA1050 are internally synthesised thanks to a PLL. – a motor driver IC to drive focus, tracking, spindle, sledge and tray motors – a SDRAM to implement shock-proof handling (if needed) STA1050 includes an embedded 8-bit CPU (ST7) running from an internal ROM (or Flash for debug) Program memory. The laser diode is driven directly using an embedded power PMOS. 2 analog inputs and 8GPIOs are available to monitor sensors and switches or to control auxiliary circuitry. An embedded Audio DAC generates a stereo audio output. This DAC can use as input a digital stream received by the I2Sin interface from an external source, for example a compressed audio processor. Several digital outputs are available: SPDIF, I2S, EIAJ and a MLB (Media Local Bus) interface which allows STA1050 to be directly interfaced to current and future MOST networks. Spindle Motor Sled OPU Sled Motor Laser RS232 Motor Driver IC (Spindle, Focus,Tracking , Sledge, Tray) Spindle Motor Sled OPU Sled Motor Laser RS232 Motor Driver IC (Spindle, Focus,Tracking , Sledge, Tray) LD/MD A, B, C, D, E, F STA1050 LQFP128 (ROM or FLASH) ANALOG AUDIOOUT I2C HOST uP Digital Outputs Audio Out L/R PDM / STEPPING SDRAM (up to 64Mbit) SDRAM Controller System Monitoring SPDIF 33.8688MHz AUX ADC Temp Sensor GPIOs RST I2Sout I2Sin Digital Inputs (from Compr . Audio Proc.) AUX ADC Temp Sensor GPIOs RST I2Sout I2Sin Digital Inputs (from Compr . Audio Proc.) Spindle Motor Sled OPU Sled Motor Laser RS232 Motor Driver IC (Spindle, Focus,Tracking , Sledge, Tray) Spindle Motor Sled OPU Sled Motor Laser RS232 Motor Driver IC (Spindle, Focus,Tracking , Sledge, Tray) LD/MD A, B, C, D, E, F STA1050 LQFP128 (ROM or FLASH) ANALOG AUDIOOUT I2C HOST uP Digital Outputs Audio Out L/R PDM / STEPPING SDRAM (up to 64Mbit) SDRAM Controller System Monitoring SPDIF 33.8688MHz AUX ADC Temp Sensor GPIOs RST I2Sout I2Sin Digital Inputs (from Compr . Audio Proc.) AUX ADC Temp Sensor GPIOs RST I2Sout I2Sin Digital Inputs (from Compr . Audio Proc.) |
Numéro de pièce similaire - STA1050 |
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Description similaire - STA1050 |
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