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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AT83SND2CMP3B датащи(PDF) 98 Page - ATMEL Corporation |
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AT83SND2CMP3B датащи(HTML) 98 Page - ATMEL Corporation |
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98 / 241 page  98 4341F–MP3–03/06 AT8xC51SND2C/MP3B Table 15-25. DAC Reset Register - DAC_ RST (10h) Reset Value = 00000000b Note: Refer to Audio DAC Startup sequence. 15.2 Power Amplifier High quality mono output is provided. The DAC output is connected through a buffer stage to the input of the Audio Power Amplifier, using two coupling capacitors The mono buffer stage also includes a mixer of the LINEL and LINER inputs as well as a differential monaural auxiliary input (line level) which can be, for example, the output of a voice CODEC output driver in mobile phones. In the full power mode, the Power Amplifier is capable of driving an 8 Ω Loudspeaker at maxi- mum power of 440mW, making it suitable as a handsfree speaker driver in Wireless Handset Application. The Low Power Mode is designed to be switched from the handsfree mode to the normal ear- phone/speaker mode of a telephone handset. The audio power amplifier is not internally protected against short-circuit. The user should avoid any short-circuit on the load. 15.2.1 PA Features • 0.44W on 8 Ω Load • Low Power Mode for Earphone • Programmable Gain (-22 to +20 dB) • Fully Differential Structure, Input and Output Table 15-26. PA Gain 765 432 10 - - - - - RESMASK RESFILZ RSTZ Bit Number Bit Mnemonic Description 7:3 - Not Used. 2 RESMASK Active high reset mask of the audio codec 1 RESFILZ Active low reset of the audio codec filter 0RSTZ Active low reset of the audio codec APAGAIN 3:0 Gain (db) 0000 -22 0001 20 0010 17 0011 14 0100 11 0101 8 |
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