CDB42L52 Cirrus Logic Inc, CDB42L52 Datasheet - Page 4

• Manufacturer Part Number: CDB42L52
• Description: Eval Bd LP Codec W/Class D Spkr Driver
• Manufacturer: Cirrus Logic Inc

Specifications of CDB42L52

• Main Purpose: Audio, CODEC
• Embedded: Yes, FPGA / CPLD
• Utilized Ic / Part: CS42L52
• Primary Attributes: 4 Stereo Audio Inputs, Stereo Line and Speaker Outputs, S/PDIF Inputs and Outputs
• Secondary Attributes: GUI, I2C, SPI, USB Interfaces
• Description/function: Audio CODECs
• Operating Supply Voltage: 5 V
• Product: Audio Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: CS42L52
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 598-1505

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1.5
1.6
1.7
1.8
CS8406 Digital Audio Transmitter
A complete description of the CS8406 transmitter
interface can be found in the CS8406 data sheet.
The CS8406 converts the PCM data generated by the CS42L52 to the standard S/PDIF data stream and
routes this signal to the optical and RCA connectors on the CDB42L52.
Selections are made by using the “Board Configuration” tab of the Cirrus FlexGUI software.
ware Mode Control” on page 6
CS8416 Digital Audio Receiver
A complete description of the CS8416 receiver
interface can be found in the CS8416 data sheet.
The CS8416 converts the input S/PDIF data stream from the optical or RCA connector into PCM data that
is input to the CS42L52.
Selections are made by using the “Board Configuration” tab of the Cirrus FlexGUI software.
ware Mode Control” on page 6
Oscillator
The socketed on-board oscillator can be selected as the system master clock source by using the selections
on the “Board Configuration” tab of the Cirrus FlexGUI.
vides configuration details.
The oscillator is mounted in pin sockets, allowing easy removal or replacement. The device footprint on the
board will accommodate full- or half-can-sized oscillators.
I/O Stake Headers
The evaluation board has been designed to allow interfacing with external systems via a serial port header
(reference designation J8) and a control port header (reference designation J109). The serial port header
provides access to the serial audio signals required to interface with a DSP
tions are made by using the “Board Configuration” tab of the Cirrus FlexGUI software.
Mode Control” on page 6
The control port header provides bidirectional access to the I²C control port signals by simply removing all
the shunt jumpers from the “USB” position. The user may then connect a ribbon cable connector to the “Ext
Sys Connect” pins for external control of board functions. A single row of “GND” pins are provided to main-
tain signal ground integrity. Two unpopulated pull-up resistors are also available should the user choose to
use the CDB42L52 logic supply (VL) externally.
provides configuration details.
provide configuration details.
provides configuration details.
(Figure 4 on page
(Figure 4 on page
Section 2. “Software Mode Control” on page 6
17) and a discussion of the digital audio
17) and a discussion of the digital audio
(Figure 10 on page
Section 2. “Software
Section 2. “Soft-
Section 2. “Soft-
CDB42L52
DS680DB1
19). Selec-
pro-