Analog Devices EVAL-ADAU1772Z, User Manual

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Evaluation Board User Guide UG-477
Rev. A | Page 15 of 28
HARDWARE DESCRIPTION
JUMPERS
Table 1. Connector and Jack Descriptions
Reference Functional Name Description
J1 Control port It facilitates communication between the evaluation board and USBi board.
J2 5 V dc input It provides external power to the board. It accepts 3.8 V dc to 6 V dc input.
J3 Power select Jumper used to select power source for the evaluation board. Selectable between USB/external
and battery.
J4 Serial audio It accepts serial audio signals in I 2 S, left justified, right justified, or TDM format.
J5 Battery 1.5 V Jumper used to power the board via a 1.5 V battery.
J6, J7 Digital microphone inputs Headers that allow digital microphones to be connected to the evaluation board.
J8 IOVDD 1772_IOVDD Jumper supplies power to the IOVDD supply of the ADAU1772 from the power supply section
J9 MP pin jumpers Jumpers used to connect push-buttons on the board to MP Pins on the ADAU1772 .
J10 IOVDD VDD Jumper connects IOVDD on the ADAU1772 to VDD (3.3 V board supply) on the evaluation board.
J11, J14 Microphone bias Jumpers used to add a microphone bias to the analog microphone inputs, AIN0 and AIN1.
J12 DVDD regulator (REG) Jumper connects DVDD on the ADAU1772 to its internal regulator.
J13 Out R Jumper provides access to the mono differential output right.
J15 Power down Jumper used to power down the ADAU1772 analog and digital circuits.
J16 Out L Jumper provides access to the mono differential output left.
J17 VDD AVDD It connects AVDD on the ADAU1772 to VDD (3.3 V board supply) on the evaluation board.
INTEGRATED CIRCUITS (IC)
Table 2. IC Descriptions
Reference Functional Name Description
U1 ADAU1772 SigmaDSP Digital audio signal processor
U2 Microchip M24C32-F serial EEPROM Self-boot memory
U3 ADP1713AUJZ low dropout (LDO) regulator Linear regulator that generates 1.5 V from an off-board power supply
U4 ADP1607 boost regulator Boost regulator that generates 1.8 V or 3.3 V for the board supply from a 1.5 V input
LED
Table 3. LED Description
Reference Functional Name Description
D1 VDD power LED It illuminates when the evaluation board is powered up.