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ATM100
Version 1.0 page 4 of 14
is an I2S slave. CMOS 3.3V logic levels are used for all I2S signals.
I2S Out Port
The I2S output port can be configured as a master or slave. Consequently BCLK and LRCK can
be either inputs or outputs. In addition, MCLK can be sourced by the module. Since the AV5100
IC contains a sample rate converter, MCLK is not required to be supplied to the module when it
is an I2S slave. CMOS 3.3V logic levels are used for all I2S signals.
I2C Slave Port
The I2C slave port can be used for external host communication and for module testing. It is
assumed that external pull up resistors are connected at the I2C master communicating with the
module.
I2C Master Port
The I2C master port is used to communicate with external audio devices such as a sub-woofer
amplifier or rear speaker. It is assumed that external pull up resistors are included on the
application board.
GPIOs 3.3V CMOS logic level GPIOs available to connect to other devices, or to use as UI supporting
GPIOs for LED and button support. All supported GPIOs can be configured as outputs or inputs
with configurable pull-ups/pull-downs.
4. Electrical Specifications
Absolute Maximum Ratings
Absolute Maximum Ratings (AMR) are stress ratings only. AMR corresponds to the maximum value that can be applied
without leading to instantaneous or very short-term unrecoverable hard failure (destructive breakdown). Stresses beyond
those listed under AMR may cause permanent damage to the device.
Functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating
Range” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may adversely affect device
reliability.
Device functional operating limits and guaranteed performance specifications are given under Electrical Characteristics at
the test conditions specified.
CONDITION MIN MAX
+5V Supply Voltage Input -0.3V 6.0V
Input Voltage Range – Digital Inputs -0.3V 3.6V
Operating Temperature -10ºC +70ºC
Storage Temperature -20ºC +80ºC