Hardware Description - Analog Devices EVAL-ADAU1466Z User Manual

EVAL-ADAU1466Z

HARDWARE DESCRIPTION

ICs
Table 5. IC Descriptions
Reference Functional Name
U1 Everlight PLT133/T8 optical transmitter
U2 Everlight PLT133/T10W optical receiver
U3 ADAU1466 SigmaDSP
U4 AD1938
U5 ADP3338AKCZ3.3RL
ADP3338AKCZ3.3RL7
U7 ADM811TARTZ
U10 Microchip 25AA1024 serial EEPROM
U6, U8, U9, U11, ADA4841-2
U12, U13, U15, U17 low distortion rail-to-rail output amplifier
U14 74ACT04SC hexadecimal inverter
STATUS LEDs
Table 6. LED Descriptions
Reference Functional
Name
D1 USB
connected
D2 3.3 V supply
status LED
D3 MP9 general-
purpose LED
D4 MP5 general-
purpose LED
D5 MP11 general-
purpose LED
D6 Master reset
status LED
D7 Self boot
status LED
User Guide
audio processor
audio codec
or
LDO voltage regulator
reset supervisor
dual, low power, low noise, and
Description
Illuminates when the USBi
USB 2.0 port of the computer.
Illuminates when the output of the
reached a level sufficient to exceed the V
is illuminated, it does not guarantee that the LDO output is 3.3 V. It only shows that the LDO output is about
2 V or greater. To perform more detailed measurements of the LDO output level, check the voltage on the
A_3V3 test point, TP1.)
Illuminates when the status of the
Illuminates when the status of the
Illuminates when the status of the
Illuminates when the master reset signal being generated by the ADM811TARTZ reset supervisor IC is logic
low, which puts the ADAU1466
master reset signal is logic high and the
Illuminates when the self boot switch (Position 1 of Switch S3) is set to the on position, signifying that a self boot
operation is to be executed on the rising edge of the
up. LED D2 does not illuminate when the self boot slide switch (S2) is set to the disabled, which signifies that
no self boot operation is to occur.
Description
S/PDIF optical (TOSLINK) output.
S/PDIF optical (TOSLINK) input.
Acts as an audio hub for all audio inputs and outputs in the system
and performs digital signal processing on those input and output
signals.
Converts analog audio inputs to digital data for the
and takes digital data back from the
audio outputs signals.
Accepts the unregulated dc supply voltage between 5 V and 7 V that
is provided on Connector J4 and regulates the supply voltage down
to 3.3 V.
Generates a master reset signal for the
the RESET push-button (S1) is pressed or if
command via the USBi.
Stores data, allowing the
Implements the analog audio filtering required for the stereo line inputs
and outputs.
Buffers logic signals and drives status LEDs.
is recognized by Windows after the
ADP3338AKCZ3.3RL
logic high input level of the 74ACT04SC inverter. (When this LED
IH
ADAU1466 LRCLK_OUT3/MP9 pin is set to logic high by the ADAU1466.
ADAU1466 LRCLK_OUT1/MP5 pin is set to logic high by the ADAU1466.
ADAU1466 LRCLK_IN1/MP11 pin is set to logic high by the ADAU1466.
and AD1938 into hardware reset. LED D3 does not illuminate when the
ADAU1466 and
ADAU1466
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ADAU1466
ADAU1466
SigmaStudio
ADAU1466 to perform a self boot operation.
USBi is connected to Control Port J1 and the
or ADP3338AKCZ3.3RL7 LDO voltage regulator has
AD1938 are out of reset.
RESET signal or when ADAU1466
UG-1135
ADAU1466 processor
to convert to analog
and the AD1938 if
sends a reset
is powered