CDB42438 Cirrus Logic Inc, CDB42438 Datasheet - Page 10

• Manufacturer Part Number: CDB42438
• Description: Eval Bd 108dB 6&8ch Multi-Chnl CODECs
• Manufacturer: Cirrus Logic Inc

Specifications of CDB42438

• Main Purpose: Audio, CODEC
• Embedded: Yes, FPGA / CPLD
• Utilized Ic / Part: CS42438
• Primary Attributes: 6 Single-Ended and 2 Differential Analog Inputs and 8 Outputs, S/PDIF Transmitter and Receiver
• Secondary Attributes: Graphic User Interface
• Description/function: Audio CODECs
• Operating Supply Voltage: 5 V to 12 V
• Product: Audio Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: CS42438
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant, Contains lead / RoHS non-compliant
• Other names: 598-1500

3.2.
The graphical description below shows the internal clock routing topology between the CS42438,
CS8416, CS8406 and DSP Header. Refer to registers “CODEC Clock Control (address 03h)” on
page 17, “CS8406 Control (address 04h)” on page 17 and “CS8416 Control (address 05h)” on
page 18 for configuration settings.
10
DSP Header
CS8416
CS8406
DSP SCLK
Internal Sub-Clock Routing
DSP FS
LRCK
SCLK
LRCK
SCLK
DSP_FS
DSP_SCLK
CS8416 LRCK
CS8416 SCLK
M/S
AUX LRCK
AUX SCLK
TDMer
Figure 3. Internal Sub-Clock Routing
FS
256Fs
DSP_SCLK
DSP_FS
256Fs
FS
CODEC_CLK.MUX[1:0]
CODEC_CLK.MUX[1:0]
FPGA->CODEC
FPGA->CODEC
AUX SCLK
AUX LRCK
FS
AUX_LRCK
AUX_SCLK
SCLK
CDB42438
CS42438
DS646DB2