CRD-49530-USB Cirrus Logic Inc, CRD-49530-USB Datasheet - Page 31

• 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

DS705RD3
4.3.4 DAI Input
Each available audio source for the board is shown as a block connected to the DAI port of the CS4953xx
as illustrated in
the DAI Properties dialog.
This dialog allows the user to set the following parameters for the CS4953xx:
• SCLK polarity - Rising edge / Falling edge
• LRCLK polarity - Channel 0 low / Channel 0 high
• Channel Mode - SPDIF on pin 4 / SPDIF on pin 0
• Temperature Grade - CRD49530s are populated with commercial-grade chips by default
• Ref Clock - Set to the frequency of the crystal driving the CS49353xx (Y1). This is the reference
clock is used to determine the clock dividers needed to derive Fs in ADC-only applications. If this
number changes, then all dividers for LRCLK/SCLK will change by the same ratio (e.g.
@24.576 MHz MCLK/512 = 1Fs = LRCLK, @12.288 MHz MCLK/256 = 1Fs = LRCLK)
Figure
4-7. Right-clicking any of the sources and selecting Device Properties, produces
Figure 4-7. CRD49530 DAI Input Properties
Copyright 2008 Cirrus Logic
CRD49530-USB User’s Manual
Changing Audio Input Source
4-6