CDB48500-USB Cirrus Logic Inc, CDB48500-USB Datasheet - Page 22

• 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

DS784DB1
3.1.11.1 Clock and Data Flow for up to 8 Channel ADC inputs
The ADC clocking architecture is used when the ADCs are used as the only audio input (i.e. S/PDIF is
disabled as described in
input source multiplexer (U1, U2) is used to select on-board audio sources.
clocking configuration. The jumpers must be set as described above.
XTAL_OUT from the CS485xx is MCLK for the system. The CS8416 slaves to this MCLK and generates
SCLK and LRCLK for the ADC side of the CS42448 and the DAI side of the DSP.
On the output side, the CS485xx slaves to MCLK from CS8416 and masters SCLK and LRCLK for the
DAC side of the CS42448.
An example of this clocking scheme can be found in pcm_mc_1fs.cpa.
Figure 3-2.
DAI
CS485XX
CS8416
XMTA S/PDIF OUT
Simplified Clock and Data Flow for up to 8 Channel ADC Inputs
DAO
Section 4.2.2, “Changing the Audio Input Source” on page
MUXED_DAI[3:0]
MUXED_DSP_LRCLK1
MUXED_DSP_SCLK1
MUXED_MCLK
DSP_SCLK
DSP_LRCLK
DSP_DA0[3:0]
©
Copyright 2008 Cirrus Logic , Inc.
SDIN
SDOUT
CS42448
CS42448
2x
2x
Use these jumper settings for the clocking
mode and inputs shown in diagram.
CDB485x00-USB Evaluation Kit Guide
CDB48500 System Block Descriptions
Figure 3-2
Analog
Inputs
4-3), and the audio
8
illustrates this
3-6