Using EZ-KIT Lite
put channels come from the AD1836, while the final channel is from the
AD1852. See
"Audio Connectors (P4–8, P17)" on page 3-18
for more
information about the connectors.
The AD1836 multi-channel codec features six digital-to-analog converters
(DACs) and four analog-to-digital converters (ADCs) and supports multi-
ple digital stereo channels with 24-bit conversion resolution and a 96 kHz
sample rate. The AD1836 features a 108 dB dynamic range for each of its
six DACs and a 104 dB dynamic range for its four ADCs. The AD1836 is
configured through its SPI port. The ADSP-21161N processor is capable
of accessing the AD1836's SPI port through the SPI port as well as
through
. For more information, see
"AD1836 Control Selection
SPORT1
Jumper (JP23)" on page
3-12.
The AD1852 is a complete 18/20/24-bit single-chip stereo digital audio
playback system. It is comprised of a multibit sigma-delta modulator, dig-
ital interpolation filters, and analog output drive circuitry. Other features
include an on-chip stereo attenuator and mute, programmed through an
SPI-compatible serial control port. The AD1852 is fully compatible with
all known DVD formats, including 192 kHz and 96 kHz sample frequen-
cies and 24 bits. It also is backwards compatible by supporting 50/15µs
digital de-emphasis intended for "redbook" Compact Discs, as well as
de-emphasis at 32 kHz and 48 kHz sample rate.
The CS8414 is a monolithic CMOS device that receives and decodes
audio data up to 96 kHz, according to the AES/EBU, IEC958, S/PDIF,
and EIAJ CP340/1201 interface standards. The CS8414 receives data
from a transmission line, recovers the clock and synchronization signals,
and de-multiplexes the audio and digital data. The CS8414 is setup to
2
operate in I
S compatible mode.
The
and
jacks connect to the left and right
Microphone
Line-In
ADC1
channel on the AD1836, depending on the setting of jumpers. See
"MIC
Gain Selection Jumpers (JP9–10)" on page 3-8
and
"ADC1 Input Selec-
tion Jumper (JP11)" on page 3-9
for more information. Two RCA jacks
ADSP-21161N EZ-KIT Lite Evaluation System Manual
2-7
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