Cirrus Logic CDB42L56 - Manual

Copyright  Cirrus Logic, Inc. 2014
(All Rights Reserved)
http://www.cirrus.com
Evaluation Board for CS42L56
Features
 Analog Line and Microphone Level Inputs
– 6 RCA and 3 Stereo 1/8” Jacks
– Compatible with Single-Ended and Pseudo-Diff.
Input Configurations
 Analog Line and Headphone Outputs
– Stereo 1/8” Headphone Jack w/Input Detection
– 4 RCA Jacks for Headphone/Line Outputs
 8 to 96 kHz S/PDIF Interface
– CS8416 Digital Audio Receiver
– CS8406 Digital Audio Transmitter
 I/O Stake Header Accessibility
– External Control Port Headers
– External Direct and Buffered Serial Audio I/O
Headers
 Multiple Power Supply options via USB, Battery or
External Power Supplies.
 1.8 V to 3.3 V Selectable Logic Interface
 FlexGUI S/W Control - Windows
®
Compatible
– Pre-Defined & User-Configurable Scripts
Description
The CDB42L56 is the ideal evaluation platform solution to test
and evaluate the CS42L56.The CS42L56 is a highly integrat-
ed, 24-bit, ultra-low power stereo codec based on multi-bit
delta-sigma modulation suitable for low power portable appli-
cations. Use of the board requires an analog/digital signal
source, an analyzer and power supplies. A Windows PC-com-
patible computer is also needed in order to configure the
CS42L56 and the board.
System timing can be provided by the CS8416 (on-board), by
the CS42L56 supplied with a master clock, by the on-board
crystal oscillator or via an I/O stake header with a DSP
connected.
RCA phono connectors and stereo 1/8 th inch audio jacks are
provided for CS42L56 analog inputs and HP/Line outputs.
Digital I/O connections are provided via RCA phono or optical
connectors to the CS8416 and CS8406 (S/PDIF Rx and Tx).
The CDB42L56 is programmed via the PC’s USB using Cirrus
Logic’s Microsoft
® Windows ® -based software (FlexGUI). The
evaluation board may also be configured to accept external
timing and data signals for operation in a user application
during system development.
ORDERING INFORMATION
CDB42L56 Evaluation Board
USB
µ controller
CS42L56
S/PDIF Rx
(CS8416)
S/PDIF Tx
(CS8406)
FPGA
Oscillator
(socket)
I 2 C Interface
Reset
Reset
PLL
Tx SRC
(CS8421)
Analog Outputs
(Line + Headphone)
Analog Inputs
(Line + MIC)
External System
I/O Header
Rx SRC
(CS8421)
PSIA I/O Header
USB/
RS232
S/PDIF
Dout
S/PDIF
Din
FEB '14
DS851DB1
CDB42L56