CDB42L55

CDB42L55 Datasheet

CDB42L55

Part	Datasheet
CDB42L55	CDB42L55 (pdf)

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CDB42L55 Evaluation Board for CS42L55 Line-level Analog Inputs 4 RCA Input Jacks Line-Level & HP Analog Output Stereo Headphone Out Jack RCA Audio Jacks for Headphone and Line Outputs S/PDIF Interface CS8416 Digital Audio Receiver CS8406 Digital Audio Transmitter I/O Stake Headers and SMA Connectors External Control Port Accessibility External DSP Serial Audio I/O Accessibility Direct DSP Serial Audio I/O accessibility with CS42L55 through SMA connectors Multiple Power Supply options via USB, Battery or External Power Supplies V to V Logic Interface FlexGUI S/W Control - Compatible Pre-defined & User-configurable Scripts The CDB42L55 is the ideal evaluation platform solution to test and evaluate the CS42L55.The CS42L55 is a highly integrated, 24-bit, ultra-low-power stereo CODEC based on multi-bit Delta-Sigma modulation suitable for low-power portable system applications. Use of the board requires an analog or digital signal source, an analyzer, and power supplies. A Windows PC-compatible computer is also needed in order to configure the CS42L55 and the board. System timing can be provided by the CS8416 S/PDIF Receiver, by the CS42L55 supplied with a master clock, or via an I/O stake header with a DSP connected. RCA connectors are provided for CS42L55 analog inputs and HP/Line outputs. A 1/8 inch audio jack is provided for headphone stereo out. Digital I/O connections are available via RCA phono or optical connectors to the CS8416 and CS8406 S/PDIF Rx and Tx . The CDB42L55 is programmed via the PC’s USB using Cirrus Logic’s FlexGUI software. The evaluation board may also be configured to accept external timing and data signals for operation in a user application during system development. Ordering Information CDB42L55 Evaluation Board PC Control Serial USB S/PDIF Rx S/PDIF Tx Board Power External V Supply LDO V CODEC Power LDO’s V V VL only VL, VCP, VLDO, VA MUX V Buck for all applicable devices 24 MHz Oscillator FPGA Clock/Data Routing Clock dividers and PLL used to derive all applicable Fs from 24 MHz oscillator Circuit Break for External System Interface Tri-state Buffers PCM Clocks/Data Clocks/ Data CS42L55 x3 AAA Alkaline not included Stereo Input 1 Stereo Input 2 SRC Tx SRC Rx I/O Stake Headers for Audio Precision’s Programmable Serial Interface Adapter PSIA I/O SMA Connectors for External System Interface Stereo HP Output Jack Stereo Line Output Copyright Cirrus Logic, Inc. 2008 All Rights Reserved DEC '08 DS773DB1 CDB42L55 TABLE OF CONTENTS QUICK START GUIDE 4 SYSTEM OVERVIEW 5 Control Port and Board Configuration 5 Power 5 Digital Input 5 DS773DB1

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CDB42L55

Evaluation Board for CS42L55

Line-level Analog Inputs 4 RCA Input Jacks

Line-Level & HP Analog Output Stereo Headphone Out Jack RCA Audio Jacks for Headphone and Line Outputs

S/PDIF Interface CS8416 Digital Audio Receiver CS8406 Digital Audio Transmitter

I/O Stake Headers and SMA Connectors External Control Port Accessibility External DSP Serial Audio I/O Accessibility Direct DSP Serial Audio I/O accessibility with CS42L55 through SMA connectors

Multiple Power Supply options via USB, Battery or External Power Supplies

V to V Logic Interface

FlexGUI S/W Control - Compatible Pre-defined & User-configurable Scripts

The CDB42L55 is the ideal evaluation platform solution to test and evaluate the CS42L55.The CS42L55 is a highly integrated, 24-bit, ultra-low-power stereo CODEC based on multi-bit Delta-Sigma modulation suitable for low-power portable system applications. Use of the board requires an analog or digital signal source, an analyzer, and power supplies. A Windows PC-compatible computer is also needed in order to configure the CS42L55 and the board.

System timing can be provided by the CS8416 S/PDIF Receiver, by the CS42L55 supplied with a master clock, or via an I/O stake header with a DSP connected.

RCA connectors are provided for CS42L55 analog inputs and HP/Line outputs. A 1/8 inch audio jack is provided for headphone stereo out. Digital I/O connections are available via RCA phono or optical connectors to the CS8416 and CS8406 S/PDIF Rx and Tx .

The CDB42L55 is programmed via the PC’s USB using Cirrus Logic’s FlexGUI software. The evaluation board may also be configured to accept external timing and data signals for operation in a user application during system development.
Ordering Information CDB42L55

Evaluation Board

PC Control Serial USB

S/PDIF Rx S/PDIF Tx

Board Power External V

Supply

LDO V

CODEC Power

LDO’s V

V VL only

VL, VCP, VLDO, VA MUX

V Buck
for all applicable
devices
24 MHz Oscillator

FPGA

Clock/Data Routing

Clock dividers and PLL used to derive all applicable Fs from 24 MHz oscillator

Circuit Break for External System

Interface

Tri-state Buffers

PCM Clocks/Data

Clocks/ Data

CS42L55
x3 AAA Alkaline not included

Stereo Input 1

Stereo Input 2

SRC Tx SRC Rx

I/O Stake Headers for Audio Precision’s Programmable Serial

Interface Adapter PSIA

I/O SMA Connectors for External System

Interface

Stereo HP Output Jack

Stereo Line Output

Copyright Cirrus Logic, Inc. 2008 All Rights Reserved

DEC '08 DS773DB1

CDB42L55

TABLE OF CONTENTS

QUICK START GUIDE 4 SYSTEM OVERVIEW 5

Control Port and Board Configuration 5 Power 5 Digital Input 5

DS773DB1

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived CDB42L55 Datasheet file may be downloaded here without warranties.

Datasheet ID: CDB42L55 523118