CDB42L55 Cirrus Logic Inc, CDB42L55 Datasheet - Page 24

• Manufacturer Part Number: CDB42L55
• Description: Eval Bd Ultra Low Power Stereo Codec
• Manufacturer: Cirrus Logic Inc

Specifications of CDB42L55

• Main Purpose: Audio, CODEC
• Embedded: Yes, FPGA / CPLD
• Utilized Ic / Part: CS42L55
• Primary Attributes: 2 Stereo Analog Inputs, Stereo Line and Headphone Outputs, S/PDIF Transmitter and Receiver
• Secondary Attributes: GUI, USB, RS232, I2C Interfaces, USB or External or Battery Power Supply
• Product: Audio Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 598-1506; CDB-42L55

7 CDB42L55 BLOCK DIAGRAM
PC Control
S/PDIF Rx
S/PDIF Tx
Precision’s Programmable Serial
I/O Stake Headers for Audio
Serial
USB
Interface Adapter (PSIA)
SRC (Tx)
applicable
Clock/Data Routing
Clock dividers and PLL used
to derive all applicable Fs
from 24 MHz oscillator
I²C for all
devices
PLL
External 5.0 V
Supply
Board Power
FPGA
SRC (Rx)
Oscillator
24 MHz
LDO
3.3 V
I/O SMA Connectors
for External System
Figure 36. Block Diagram
Tri-state
Buffers
Interface
3.3 V (VL only)
LDO’s
External System
Circuit Break for
1.8 V
2.5 V
Interface
PCM
Clocks/Data
I²C Clocks/
Data
VL, VCP, VLDO, VA
Jack
HP
MUX
CODEC Power
Stereo HP
Output
CS42L55
1.8 V
Stereo Line
Output
Buck
(not included)
AAA Alkaline
x3
Input 1
Input 2
Stereo
Stereo