CX20724-11Z datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > Wireless rf/communication> Telecom circuit> CX20724-11Z

CX20724-11Z: DescriptionPCM Codec,; CategoryWireless rf/communication Telecom circuit; File Size370KB，45 Pages; ManufacturerCONEXANT; Websitehttp://www.conexant.com/

Download Datasheet Parametric Compare View All

CX20724-11Z Overview

PCM Codec,

CX20724-11Z Parametric

Parameter Name	Attribute value
package instruction	,
Reach Compliance Code	compli
Telecom integrated circuit types	PCM CODEC
Base Number Matches	1

Preview

Download Datasheet

View All

CX20724 Ultra Low-Power HD Audio CODEC

Data Sheet

General Description

Conexant's CX20724 is an ultra low-power, high

performance High Definition (HD) audio Coder Decoder

(CODEC) that supports ECR HDA048A mobile

extensions, and is primarily targeted at the mobile PC

market, including notebooks, ultrabooks, All-In-Ones

(AIOs), and tablets. The CODEC is fully compliant with all

industry specifications, including Universal Audio

Architecture (UAA) and the latest Windows Hardware

Certification Kit (WHCK). Host interface signaling levels of

1.5V, 1.8V, and 3.3V are selectable.

With two 24-bit stereo Digital-to-Analog Converters

(DACs) operating at sampling frequencies up to 192kHz

and two 24-bit stereo Analog-to-Digital Converters

(ADCs) operating up to 96kHz, the CODEC supports

multi-streaming and Real-Time Communication (RTC)

applications. By combining these hardware features with

Conexant's playback, voice, and speech pre-processing

algorithms, this CODEC is the ideal solution for platforms

needing Lync and Skype, general consumer applications,

and gaming/multi-media enthusiasts.

The CX20724 has an integrated stereo AudioSmart™

class-D with intelligent power delivery and dynamic signal

loudness optimization. SpeakerShield technology

provides industry-leading, load-based protection in real-

time that includes Direct Current (DC) detection, short-

circuit, near-short, high temperature, and over-

temperature. Integrated 14-band hardware Equalizer

(EQ) and Dynamic Range Compression (DRC) optimizes

speaker frequency response and loudness without

distortion. The EQ can also be applied to the headphone

and line out paths. A four-band hardware EQ is available

on the microphone inputs. Additional unlimited bands of

EQ and DRC are available in software.

The CODEC includes a stereo capless headphone output

and a headset with integrated detect and switch without

an external Bill Of Materials (BOM). A universal jack

supports all audio peripherals on one jack. A mono

subwoofer output is available with tunable EQ, as well as

line-in/microphone re-tasking.

Up to four digital microphones can be connected. Multiple

General Purpose Input/Outputs (GPIOs) are available, as

well as a bi-directional External Amplifier Power-Down

(EAPD). The CODEC also includes a Sony/Philips Digital

Interface Format (S/PDIF) output.

Features

•

Host interface supports 1.5V, 1.8V, or 3.3V signaling

levels

Two pairs of DACs and ADCs have independent

sampling rates up to:

–

192kHz for DACs

–

96kHz for ADCs

2.8W

RMS

per channel AudioSmart™ class-D with

intelligent power delivery and dynamic signal loudness

optimization

Integrated seven bands per channel EQ and DRC

SpeakerShield best industry advanced speaker

protection

Fully integrated headset support with detect/switch

and a universal audio jack

Four digital microphones for array applications

Tunable microphone EQ

Mono subwoofer output with a dedicated EQ

Input/output re-tasking for docking applications

Line-in for scalar board interfaces

S/PDIF output supports rates up to 96kHz

D3 Live allows external device playback through an

internal speaker with full dynamics and protection

while the system is asleep

Bi-directional EAPD and GPIOs

Supports analog and digital PC Beep

•

System Compatibility

•

HD Audio Specification, Revision 1.0a

including ECR

HDA048A mobile extensions

Windows XP/Vista/7/8.x/10

Microsoft Premium Logo

Linux

Android

05/26/15

Conexant Confidential

• www.conexant.com

010-24DSR03

CX20724 Data Sheet

Table of Contents

General Description.......................................................................................................................................................i

Features..........................................................................................................................................................................i

System Compatibility ....................................................................................................................................................i

Revision History ...........................................................................................................................................................ii

Introduction...................................................................................................................................................................1

CX20724 Audio CODEC Features................................................................................................................................2

Hardware Interface .......................................................................................................................................................5

General ................................................................................................................................................................................. 5

Host Interface ............................................................................................................................................................. 5

Audio Ports ................................................................................................................................................................. 5

Block Diagram...................................................................................................................................................................... 6

Pin Information .................................................................................................................................................................... 7

Pin Configuration ........................................................................................................................................................ 7

Pin Assignments ......................................................................................................................................................... 8

Device Performance Specifications................................................................................................................................. 10

Power Consumption.......................................................................................................................................................... 12

Package Dimensions..................................................................................................................................................13

HD Audio Interface......................................................................................................................................................14

Overview............................................................................................................................................................................. 14

Intel ECR HDA048A Support............................................................................................................................................. 15

Verbs................................................................................................................................................................................... 15

Node ID 00: Root Node ............................................................................................................................................ 16

Node ID 01: Audio Function Group (AFG)................................................................................................................ 17

Nodes 10, 11: DAC 1, 2 Widgets.............................................................................................................................. 19

Node 12: PC Beep Generator Widget ...................................................................................................................... 20

Node ID 13: ADC1 Widget........................................................................................................................................ 21

Node ID 14: ADC2 Widget........................................................................................................................................ 23

Node ID 15: Mixer Widget......................................................................................................................................... 24

Node ID 16: Port A/Vendor Widget........................................................................................................................... 25

Node ID 17: Port G BTL Pin Widget ......................................................................................................................... 26

Node ID 18: Port B Widget ....................................................................................................................................... 27

Node ID 19: Port D Widget ....................................................................................................................................... 29

Conexant Confidential

05/26/15

010-24DSR03

iii

CX20724 Data Sheet

Table of Contents

Node ID 1A: Port C Widget....................................................................................................................................... 30

Node ID 1F: Port H Widget ....................................................................................................................................... 31

Node ID 1D: Port E Line-Out/Line-In/MIC-In ............................................................................................................ 32

Node ID 1E: Port F Widget ....................................................................................................................................... 34

Node ID 20: DAC 3—Sony/Philips Digital Interface Format (S/PDIF) Output Widget .............................................. 35

Node ID 21: Port I S/PDIF Output Widget ................................................................................................................ 36

Node 22: Port M Widget ........................................................................................................................................... 37

Node 1B: Vendor-Specific Widget ............................................................................................................................ 38

Node 1C: Vendor-Specific Widget ............................................................................................................................ 38

Unsolicited Messages ....................................................................................................................................................... 38

Audio Unsolicited Messages..................................................................................................................................... 38

Ordering Information..................................................................................................................................................39

Conexant Confidential

05/26/15

010-24DSR03

CX20724-11Z Related Products

	CX20724-11Z
Description	PCM Codec,
Reach Compliance Code	compli
Telecom integrated circuit types	PCM CODEC
Base Number Matches	1

Recommended Resources

Variable frequency high frequency LC oscillator circuit

TL431 and 7805 form an adjustable regulated power supply circuit diagram

DC-DC converter circuit diagram composed of CA3542

555 wireless alarm circuit using language memory chip

Parallel regulated power supply composed of LM109

820e computer motherboard circuit diagram_52

Shortcut: A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AX AY AZ B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 BA BB BC BD BE BF BG BH BI BJ BK BL BM BN BO BP BQ BR BS BT BU BV BW BX BY BZ C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE CF CG CH CI CJ CK CL CM CN CO CP CQ CR CS CT CU CV CW CX CY CZ D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE DF DG DH DI DJ DK DL DM DN DO DP DQ DR DS DT DU DV DW DX DZ

Popular Components