Cirrus-logic CDB4207 Manual de usuario descargar pdf (Pagina 1)

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CS4207 HD Audio CODEC Development Platform

Features

 Demonstrates Recommended Layout and

Grounding Arrangements

 Analog I/O Use Standard 1/8” (3.5 mm) or 1/4”

(6.35 mm) Jacks With Presence Detection

 Analog Inputs (Passive)

– Single-ended and Differential MIC Inputs

– Single-ended Stereo Line-level Input



Analog Outputs (Passive)

– Stereo Headphone Output with Test Loads

– Single-ended and Differential Line Outputs



Digital I/O

– Optical S/PDIF I/O Jacks

– Digital MIC Input Headers

– HD Audio Bus Headers

– CS4207 GPIO Header



– Optionally Powered by Bench Supply or PC

Peripheral Power Supply Cable (Molex)



Configured by Hardware Jumpers

– Power Supply Sources, Analog I/O Settings



Current Sense Resistors for CS4207 Supplies

Description

The CDB4207 is a flexible development platform de-

signed for easy evaluation of the CS4207 HD Audio

CODEC. Evaluation requires a PC with an HD Audio

Bus connector and an analog or digital audio signal

source for recording. Analog I/O is provided via 1/8” or

1/4” jacks. S/PDIF I/O is provided via optical connec-

tors. Two identical HD Audio Bus headers are provided

for connection to a PC.

The CDB4207 is configured via hardware jumper set-

tings to set up the analog I/O circuitry and select a

source for each CS4207 power supply rail. The analog

inputs and outputs support several signal types for com-

patibility with a variety of signal sources and analyzers.

The CS4207 can be powered from the HD Audio Bus

header, a PC peripheral power supply cable, or external

power supplies. Current sense resistors are included for

easy power calculations during system development.

ORDERING INFORMATION

CDB4207 Evaluation Board

CS4207

Lineout 1

Stereo

MICIN Mono

MICIN Stereo

Line In Stereo

Lineout 2

Stereo

Lineout 2

Balanced Left

Lineout 2

Balanced Right

* these connectors have presence detection

Headphone

Output

Optical

S/PDIF In

Optical

S/PDIF Out 1

Optical

S/PDIF Out 2

HD Audio Bus

Headers

CS4207 GPIO

Header

CS4207

Supplies

Regulators

Current Sense

Resistors

Digital Mic

Headers

External Bench

Supplies

PC Peripheral

Power

Jumper

Select

MICIN Balanced

Left

MICIN Balanced

Right

Jumper

Select

Lineout 1

Balanced Left

Lineout 1

Balanced Right

Jumper

Select

CDB4207

NOV '09

DS880DB1

1 2 3 4 5 6 ... 21 22

Indice de contenidos

Pagina 1 - Description

Pagina 2 - LIST OF TABLES

CDB420710 DS880DB1Table 4. Power Supply Indicator LEDsReference Designator Silkscreen Label DescriptionD1 VA CS4207 VA supply is powered on when LED i

Pagina 3 - 1. HARDWARE SYSTEM OVERVIEW

CDB4207DS880DB1 114. CDB4207 SCHEMATICS AND LAYOUT Figure 2. CS4207

Pagina 4 - 1.7 HD Audio Bus Headers

CDB420712 DS880DB1Figure 3. Analog Inputs

Pagina 5 - 1.8 Power Supply Circuitry

CDB4207DS880DB1 13Figure 4. Analog Outputs

Pagina 6 - 2. QUICK-START GUIDE

CDB420714 DS880DB1Figure 5. Digital I/O

Pagina 7

CDB4207DS880DB1 15Figure 6. Power

Pagina 8 - 8 DS880DB1

CDB420716 DS880DB1Figure 7. CDB4207 Component Map

Pagina 9

CDB4207DS880DB1 17Figure 8. CDB4207 Top Layer

Pagina 10 - Reference

CDB420718 DS880DB1Figure 9. CDB4207 Inner Layer 1 - Ground

Pagina 11 - Figure 2. CS4207

CDB4207DS880DB1 19Figure 10. CDB4207 Inner Layer 2 - Power

Pagina 12 - Figure 3. Analog Inputs

CDB42072 DS880DB1TABLE OF CONTENTS1. HARDWARE SYSTEM OVERVIEW ...

Pagina 13 - DS880DB1 13

CDB420720 DS880DB1Figure 11. CDB4207 Bottom Layer

Pagina 14 - Figure 5. Digital I/O

CDB4207DS880DB1 215. ORDERING INFORMATION6. REVISION HISTORYProduct Description Included Hardware Order #CDB4207CS4207Evaluation Board1 x CDB42071 x 1

Pagina 15 - Figure 6. Power

CDB420722 DS880DB1Contacting Cirrus Logic SupportFor all product questions and inquiries, contact a Cirrus Logic Sales Representative. To find the one

Pagina 16 - 16 DS880DB1

CDB4207DS880DB1 31. HARDWARE SYSTEM OVERVIEWThe CDB4207 allows for easy and complete evaluation of the CS4207 HD Audio CODEC. Use of the CDB4207 re-qu

Pagina 17 - Figure 8. CDB4207 Top Layer

CDB42074 DS880DB1stereo full-differential outputs are available at J66 and J53. For lineout 2, the single-ended or full-differentialoutput option is s

Pagina 18 - 18 DS880DB1

CDB4207DS880DB1 51.8 Power Supply CircuitryThe CDB4207 has several options for powering the CS4207 and auxiliary circuits. The main board powersupply

Pagina 19 - DS880DB1 19

CDB42076 DS880DB12. QUICK-START GUIDEThe following figure is a quick-start guide made for user convenience. The guide configures the board to be power

Pagina 20 - 20 DS880DB1

CDB4207DS880DB1 73. SYSTEM CONNECTIONS AND JUMPER SETTINGSTable 2 below serves as a quick reference to all user interface elements, Table 3 outlines t

Pagina 21 - 6. REVISION HISTORY

CDB42078 DS880DB1Table 3. Jumper Settings (Sheet 1 of 2)Reference Designator Silkscreen Label Position Function SelectedJ25 I(VA_HP) *shuntedunshunte

Pagina 22 - 22 DS880DB1

CDB4207DS880DB1 9Note: All settings denoted by an asterisk (*) are the Default Factory Settings.J40 MICIN SENSE shunted*unshuntedMICIN jack presence d

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