CS8416-IS Cirrus Logic, CS8416-IS Datasheet - Page 12

• Manufacturer Part Number: CS8416-IS
• Description: 192 kHZ DIGITAL AUDIO INTERFACE RECEIVER
• Manufacturer: Cirrus Logic

3 GENERAL DESCRIPTION
The CS8416 is a monolithic CMOS device which
receives and decodes audio data according to the
AES3, IEC60958, S/PDIF, and EIAJ CP1201 inter-
face standards.
The CS8416 utilizes an 8:2 multiplexer to select
between eight inputs for decoding and to allow an
input signal to be routed to an output of the
CS8416. Input data is either differential or single-
ended. A low jitter clock is recovered from the in-
coming data using a PLL. The decoded audio data
is output through a configurable, 3-wire output
port. The channel status and Q-channel subcode
portion of the user data are assembled in registers
and may be accessed through an SPI or I
Three General Purpose Output (GPO) pins are pro-
vided to allow a variety of signals to be accessed
under software control. In hardware mode, dedicat-
ed pins are used to select audio stream inputs for
decoding and transmission to a dedicated TX pin.
Hardware mode also allows direct access to chan-
nel status and user data output pins.
external connections to the CS8416 when config-
ured for software and hardware modes. Please note
12
Figure 5
and
Figure 6
show the power supply and
2
C port.
that all I/O pins, including RXN and RXP[7:0], op-
erate at the VL+ voltage.
3.1
This document assumes that the user is familiar
with the AES3 and S/PDIF data formats. It is advis-
able to have current copies of the AES3, IEC60958,
and IEC61937 specifications on hand for easy ref-
erence.
The latest AES3 standard is available from the Au-
dio Engineering Society or ANSI at
or at www.ansi.org. Obtain a copy of the latest
IEC60958/61937 standard from ANSI or from the
International Electrotechnical Commission at
www.iec.ch. The latest EIAJ CP-1201 standard is
available from the Japanese Electronics Bureau.
Application Note 22: Overview of Digital Audio In-
terface Data Structures contains a useful tutorial
on digital audio specifications, but it should not be
considered a substitute for the standards.
The paper An Understanding and Implementation
of the SCMS Serial Copy Management System for
Digital Audio Transmission, by Clifton Sanchez, is
an excellent tutorial on SCMS. It is available from
the AES as reprint 3518.
AES3 and S/PDIF Standards
Documents
www.aes.org
CS8416
DS578PP2