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AD74322AARU Datasheet(PDF) 2 Page - Analog Devices |
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AD74322AARU Datasheet(HTML) 2 Page - Analog Devices |
2 / 20 page AD74322 –2– Pr D 03/00 PRELIMINARY TECHNICAL DATA PRELIMINAR Y TECHNICAL DA TA An on-chip reference voltage is included but can be bypassed if required for use with an external reference source. The AD74322 offers sampling rates which, depending on MCLK selection and MCLK divider ratio, range from 8 kHz in the voiceband range to 96 kHz in the audio range. The digital interface to the AD74322 is configured as two separate ports which allow separation of device control and data streams. Control and status are monitored using an SPI ® compatible serial port while the input and output data streams are controlled using an I 2S® port. The two I2S streams are controlled by a common Bit-Clock and Left/Right Clock pins. There is also a DSP mode available on the audio data port which will also allow both control and data to be streamed through the same interface where controller resources are limited. The AD74322 is available in various lead count package options. These range from a 16-pin variant with single- ended inputs/outputs and no SPI port through a 20-pin variant with single-ended inputs/outputs and an SPI port to a 24-pin variant with differential inputs/outputs and an SPI port. These devices will be available in SOIC, SSOP and TSSOP package options and are specified for the industrial temperature range of -40°C to +85°C. |
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