CRD-49530-USB Cirrus Logic Inc, CRD-49530-USB Datasheet - Page 13

• 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
1.3.10.3 Clock and Data Flow for USB Data Delivery
MUXED_LRCLK
The CS4953xx always masters its output clocks (DSP_SCLK/DSP_LRCLK).
This feature is used by engineering development and debugging purposes.
When the audio input source multiplexer (U1, U2) is used to select HDMI clocks and data, the HDMI
source masters the system MCLK, and the input clocks (MUXED_SCLK/MUXED_LRCLK) of the
CS4953xx.
MUXED_MCLK
MUXED_SCLK
Note: MUXED_MCLK is the clock signal that is driven by the CS8416’s RMCK pin. The CS8416
DSP_LRCLK
Clock Name
DSP_SCLK
MUXED_DAI[4:0]
MUXED_LRCLK
MUXED_SCLK
provides the recovered clock from the S/PDIF input unless it loses signal lock, in which case the
CS8416 passes the DSP clock (XTAL_OUT) that it receives on the OMCK pin.
DAI
CS4953xx
SOURCE
Clock Master Source
HDMI
MUXED_MCLK
MUXED_MCLK
MUXED_MCLK
MUXED_MCLK
CS8416
DAO
Table 1-2. S/PDIF Clocking
Figure 1-5. HDMI Clocking
Copyright 2008 Cirrus Logic
MUXED_MCLK
DSP_SCLK
DSP_LRCLK
DSP_DA0[3:0]
Clock Driver
CS4953xx
CS4953xx
CS8416
CS8416
CS8416
(e.g. 12.288 MHz for 48 kHz)
64*Output Fs (default)
64*Input Fs (default)
1*Input Fs (default)
Clock Frequency
CRD49530-USB System Description
256*S/PDIF Fs
Input Fs
SDIN
CRD49530-USB User’s Manual
CS42448
1-8