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ES9039MPRO Datasheet(PDF) 10 Page - ESS Technology,Inc |
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ES9039MPRO Datasheet(HTML) 10 Page - ESS Technology,Inc |
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10 / 95 page  ES9039MPRO & ES9039PRO Product Brief CONFIDENTIAL ADVANCE INFORMATION 0.2.1 ESS TECHNOLOGY, INC. 109 Bonaventura Drive, San Jose, CA 95134, USA Tel (408) 643-8800 • WWW.ESSTECH.COM 10 Hardware Mode The ES9039MPRO & ES9039PRO has 32 pre-configured modes that can be set with external pin configuration. These modes configure the DAC for different input serial data rates and set the DAC muting. These modes are set with pins: • MODE (Pin 23) • HW0 (Pin 21) • HW1 (Pin 22) • HW2 (Pin 40) • MUTE_CTRL (Pin 41) Each hardware mode pin has 4 states: • 0 – Pin directly connected to GND • 1 – Pin directly connected to AVDD • Pull 0 – Pin pulled to GND through 47kΩ resistor • Pull 1 – Pin pulled to AVDD through 47kΩ resistor Design Information Each hardware mode pin can be configured with either a pull-up or pull-down resistor. Therefore, it is important that the pin is configured to allow for the desired hardware modes. Some guidelines include the following: • The HW0 and HW1 pins never require a pull up or pull-down resistor. HW2/ MODE AVDD or GPIO 47k HW2/ MODE 47k Pull-up Pull-down GND or GPIO Figure 2 – Hardware mode pin configurations Muting MUTE_CTRL (Pin 41) is used to control the muting of the output and enabling of the Automute feature while in Hardware Mode: • 0 – Output Muted, No Automute • 1 – Output Unmuted, No Automute • Pull 0 – Output Muted, Automute Enabled • Pull 1 – Output Unmuted, Automute Enabled |
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