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Evaluation Board User Guide
HARDWARE DESCRIPTION
JUMPERS
Table 1. Connector and Jack description
Reference
Functional Name
J1
Control Port
J2
5 V DC Input
J3
Power Select
J4
Serial Audio
J5
Battery 1.5 V
J6, J7
Digital Mic Inputs
J8
IOVDD 1772_IOVDD
J9
MP Pin Jumpers
J10
IOVDD VDD
J11, J14
Microphone Bias
J12
DVDD REG
J13
Out R
J16
Out L
J15
Power Down
J17
VDD ADD
INTEGRATED CIRCUITS (IC)
Table 2. IC Descriptions
Reference
Functional Name
U1
ADAU1772 SigmaDSP
U2
Microchip M24C32-F
Serial EEPROM
U3
ADP1713AUJZ LDO
Regulator
U4
ADP1607 Boost Regulator
LED
Table 3. LED Descriptions
Reference
Functional Name
D1
VDD power LED
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Description
Facilitates communication between the evaluation board and USBi board
Provides external power to the board. Accepts 3.8 V DC to 6 V DC input.
Jumper used to select power source for the evaluation board. Selectable between USB/External
d b
Accepts serial audio signals in I
Jumper used to power the board via a 1.5 V battery.
Headers that allow digital microphones to be connected to the evaluation board.
Jumper supplies power to the IOVDD supply of the ADAU1772 from the power supply section
Jumpers used to connect pushbuttons on the board to MP Pins on the ADAU1772.
Jumper connects IOVDD on the ADAU1772 to VDD (3.3 V board supply) on the evaluation board.
Jumpers used to add a mic bias to the analog mic inputs AIN0 and AIN1.
Jumper connects DVDD on the ADAU1772 to its internal regulator.
Jumper provides access to the Mono Differential Output Right.
Jumper provides access to the Mono Differential Output Left.
Jumper used to power down the ADAU1772 analog and digital circuits
Connects AVDD on the ADAU1772 to VDD (3.3 V board supply) on the evaluation board.
Description
Digital Audio Signal Processor
Self-boot memory
Linear regulator that generates 1.5 V from an off-board power supply.
Boost regulator that generates 1.8 V or 3.3 V for the board supply from a 1.5 V input.
Description
Illuminates when the evaluation board is powered up.
Rev. 0 | Page 13 of 27
2
S, Left Justified, Right Justified, or TDM format.
UG-177
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