CDB48500-USB Cirrus Logic Inc, CDB48500-USB Datasheet - Page 27

• Manufacturer Part Number: CDB48500-USB
• Description: KIT USB EVALUATION FOR CDB48500
• Manufacturer: Cirrus Logic Inc

Specifications of CDB48500-USB

• Main Purpose: Audio, Audio Processing
• Embedded: No
• Utilized Ic / Part: CS485XX
• Primary Attributes: 32-Bit Audio Processor, I2C or SPI
• Secondary Attributes: Graphic User Interface, 12-ch Analog Audio Input & Outputs, Optical Out- S/PDIF
• Description/function: Audio A/D
• Operating Supply Voltage: 9 V to 12 V
• Product: Audio Modules
• Supply Current: 1 A
• For Use With/related Products: CS48520, CS48540, CS48560
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 598-1284

Basic Application Download and System Configuration for PCM Pass-through
CDB48500--USB Evaluation Kit Guide
4-3
4.2.2.1 Audio In via S/PDIF
4.2.2.2 Audio In via 8-channel ADC
4.2.2 Changing the Audio Input Source
The audio input to the DSP is selected through the “Audio In” block in DSP Composer. The Audio can be
delivered to the DSP via the following:
To deliver data to the DSP via S/PDIF, drag the Audio In block to the work space and select “SPDIF” as
the Input Source. Double click the Audio In block to see the signal flow. Right Click on SPDIF Rx. The
device properties of the S/PDIF IN element lets you select if the SPDIF input is on SPDIF_RXP (Optical
In) or on SPDIF_RXN (Coaxial). The Input FS depends on input stream and must not be changed. The
Master/Slave property must always be set to Master to indicate that the S/PDIF transmitter masters
MCLK, SCLK and LRCLK as described in
page
To deliver data to the DSP via 8ch ADC, drag the Audio In block to the work space and select “Analog (8
ch)” as the Input Source. Double click the Audio In block to see the signal flow. The device properties of
the Analog (8 ch) element lets you select if 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
3-6. The Audio In module with Analog (8-channel) as the input source is shown in
• 1. S/PDIF
• 2. 8ch ADC
• 3. USB
• 4. 12-channel ADC (Currently not supported)
3-7. The Audio In module with S/PDIF In as the input source is shown in
Section 3.1.11.1, “Clock and Data Flow for up to 8 Channel ADC inputs” on page
Figure 4-3. Audio In via S/PDIF In
©
Copyright 2008 Cirrus Logic , Inc.
Section 3.1.11.2, “Clock and Data Flow for S/PDIF Input” on
Figure
Figure
4-3.
4-4.
DS784DB1