CRD-49530-USB Cirrus Logic Inc, CRD-49530-USB Datasheet - Page 30

• Manufacturer Part Number: CRD-49530-USB
• Description: Audio Modules & Development Tools Eval Bd 32-Bit Aud Dcdr & Prgrmble DSP
• Manufacturer: Cirrus Logic Inc

Specifications of CRD-49530-USB

• Product: Audio Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Changing Audio Input Source
CRD49530-USB User’s Manual
4-5
4.3.2 Analog Audio Input
4.3.3 USB (I
• Input and Output Sampling Frequency Range - Select the Fs range where
• Master/Slave settings for the SCLK & LRCLK pins on the CS8416. Set to Master when using S/PDIF
• SPDIF Mux: RX0 - RX3, and ‘NONE’. Choosing ‘NONE’ forces the CS8416 to pass the DSP clock that
• Analog Only - Enable microphone input.
To deliver data to the DSP via 6ch ADC, drag the Audio In block to the work space and select “Analog” as
the Input Source. Double click the Audio In block to see the signal flow. The Device properties of the
Analog element lets you select the sampling frequency of the ADC on the CS42448 CODEC. The Master/
Slave property must always be set to Master to indicate that the ADC will master SCLK and LRCLK as
described in
source is illustrated in
This S/PDIF and Analog dialog allows the user to set the following parameters:
input.
comes in on the OMCK pin to MUXED_MCLK (RMCK). Use this setting when using the ADC.
This feature is used for debugging and development purposes via the usb_play utility.
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2
1FS = 32 kHz, 44.1 kHz, or 48 kHz
2Fs = 64 kHz, 88.2 kHz, 96 kHz
4FS= 128 kHz, 176.4 kHz, 192 kHz
S) Audio Input
Section 1.3.10 “Audio Clocking” on page
Figure
4-6.
Figure 4-6. CRD49530 Analog Properties
Copyright 2008 Cirrus Logic
1-6. The Audio In module with Analog as the input
DS705RD3