CDB42L55 Cirrus Logic Inc, CDB42L55 Datasheet - Page 17

• 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

DS773DB1
5 SYSTEM CONNECTIONS AND JUMPERS
HP Stereo Connection
AP PSIA Transmitter
SPDIF Optical OUT
SPDIF COAX OUT
AP PSIA Receiver
CONNECTOR
CS42L55 RESET
SPDIF Optical IN
SPDIF COAX IN
S/W CONTROL
MICRO RESET
FPGA Program
Line Channel A
Line Channel B
HP Channel A
HP Channel B
MICRO JTAG
ADC.SDOUT
FPGA JTAG
DAC.SDIN
I/O Header
EXT. +5V
Ext. Input
Oscillator
USB I/O
RS232
AIN1B
AIN1A
AIN2B
AIN2A
MCLK
LRCK
SCLK
GND
GND
AAA
REF
OPT3
OPT2
TP10
J104
J110
J109
TP9
TP6
TP7
BT1
BT2
BT3
J95
J94
J61
J68
J75
J78
J40
J77
J42
J45
J46
J47
J14
J10
J38
J37
J15
J17
S4
S1
S2
Y1
J8
J6
J1
INPUT/OUTPUT
Intput/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Table 1. System Connections
Digital Outputs to CS42L55 (typically derived from an Audio Precision Pro-
Digital I/O from CS42L55 (typically derived from an Audio Precision Pro-
RCA connector for headphone analog output from CS42L55
Stereo jack for headphone stereo output from CS42L55
Reload Xilinx program into the FPGA from Flash (U14)
Oscillator for providing master clock for system timing
RCA connector for line analog output from CS42L55
+4.5V external power supply for U4 buck regulator
USB connection to PC for I²C control port signals
RCA connectors for analog inputs to CS42L55
I/O for programming the microcontroller (U84)
CS8406 digital audio output via optical cable
Unbuffered Digital I/O Interface to CS42L55
CS8416 digital audio input via optical cable
CS8416 digital audio input via coaxial cable
CS8406 digital audio input via coaxial cable
I/O bus for external I²C control port signals
Buffered Digital I/O Interface to CS42L55
grammable Serial Interface Adapter)
grammable Serial Interface Adapter)
I/O for programming the FPGA (U5)
RS232 serial port connection to PC
Socket for +1.5 V AAA batteries
Reset for microcontroller (U84)
SIGNAL PRESENT
Reset for CS42L55 (U1)
+5V power supply
GND reference
GND reference
CDB42L55
17