CDB4270 Cirrus Logic Inc, CDB4270 Datasheet - Page 26

• Manufacturer Part Number: CDB4270
• Description: BOARD EVAL FOR CS4270 CODEC
• Manufacturer: Cirrus Logic Inc

Specifications of CDB4270

• Main Purpose: Audio, CODEC
• Embedded: Yes, FPGA / CPLD
• Utilized Ic / Part: CS4270
• Primary Attributes: Stereo, 24-Bit, 192 kHz Sample Rate
• Secondary Attributes: I²S, S/PDIF Inputs and Outputs, Analog Inputs and Outputs, GUI
• Description/function: Audio CODECs
• Operating Supply Voltage: 5 V
• Product: Audio Modules
• For Use With/related Products: CS4270
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 598-1002

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7. CDB CONNECTORS, SWITCHES, INDICATORS AND JUMPERS
MICRO C2 HEADER
HW MODE CONFIG
SPDIF OPTICAL IN
SERIAL CONTROL
SPDIF COAX OUT
INIT INDICATOR
CLK/DATA CON-
SPDIF OPTICAL
USB PRESENT
CONNECTOR,
SPDIF COAX IN
RCVR ERROR
MICRO RESET
DSP HEADER
INDICATOR
MUTEA LED
MUTEB LED
FPGA JTAG
JUMPER/
CONTROL
JUMPERS
JUMPERS
JUMPERS
SWITCH
MUTEA
MUTEB
AOUTB
AOUTA
DONE
RS232
TROL
GND
AINA
AINB
OUT
USB
+5V
SPI/I²C control Internal or external select
Designator INPUT/OUTPUT
Indicates that CS4270 MUTEA signal is
Indicates that CS4270 MUTEB signal is
Reference
Indicates CS8416 Data Receive Error
Selects between MUTEA Enable and
Selects between MUTEB Enable and
Indicates FPGA program complete
OPT2
OPT1
J16
J15
J10
J14
J12
J13
J11
MUTEA LED Indicator Enable
MUTEB LED Indicator Enable
Indicates FPGA program INIT
S1
S2
S4
J1
J2
J7
J5
J9
J6
J4
Indicates USB Connection
PURPOSE
present
present
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Table 14. Connectors and Switches
Output
Output
Output
Table 15. Jumpers and Indicators
Input
Input
Input
Input
Input
Input
Input
Input
+5.0 V Power Supply
HW Mode Clock/Data Routing Control Dip Switch
HW Mode CS4270 Mode Control Switch
Ground Reference
CS8406 digital audio output via optical cable
CS8406 digital audio output via coaxial cable
CS8416 digital audio input via optical cable
CS8416 digital audio input via coaxial cable
Serial connection to PC for SPI /
USB connection to PC for SPI /
I/O for Clocks & Data
I/O for external SPI /
I/O for programming the micro controller (U21)
I/O for programming the FPGA (U11)
Reset for the micro controller (U21)
RCA phono jacks for analog inputs
RCA phono jacks for analog outputs
*J10, pins 1-2
POSITION/
*J8, pins 1-2
*J3, pins 1-2
J8, pins 2-3
J3, pins 2-3
REF DES
J10, none
D3
D1
D5
D4
D2
D7
I²C
SIGNAL PRESENT
MUTEA from CS4270 is present when LED
MUTEB from CS4270 is present when LED
FUNCTION SELECTED/INDICATION
Connect to pins 2 (control) and 3 (gnd) for
Control Port signals
FPGA has been programmed when on
Indicates Data Receive Error when on
FPGA is being programmed when on
Indicates USB connection when on
I²C
*Normal I²C/SPI Operation
I²C
MUTEA LED Enable
MUTEB LED Enable
Control Port signals
Control Port signals
* MUTEA Enable
* MUTEB Enable
external control
is on
is on
*Default factory settings
CDB4270
DS686DB3