WM8718GEFL/RV datasheet, PDF - EEWORLD Datasheet

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WM8718GEFL/RV: DescriptionConsumer Circuit, CMOS, PQCC24, 4 X 4 MM, 0.90 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, PLASTIC, MO-220VGGD, QFN-24; CategoryOther integrated circuit (IC) Consumption circuit; File Size405KB，32 Pages; ManufacturerCirrus Logic; Websitehttp://www.cirrus.com; Environmental Compliance

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WM8718GEFL/RV Overview

Consumer Circuit, CMOS, PQCC24, 4 X 4 MM, 0.90 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, PLASTIC, MO-220VGGD, QFN-24

WM8718GEFL/RV Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	Cirrus Logic
package instruction	HVQCCN,
Reach Compliance Code	compliant
Other features	IT ALSO REQUIRES 3V TO 5.5V DIGITAL SUPPLY
Commercial integrated circuit types	CONSUMER CIRCUIT
JESD-30 code	S-PQCC-N24
length	4 mm
Number of functions	1
Number of terminals	24
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	HVQCCN
Package shape	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Maximum seat height	1 mm
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	3 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	QUAD
width	4 mm

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DESCRIPTION

The WM8718 is a high performance differential stereo DAC

designed for audio applications such as DVD, home theatre

systems and digital TV. The WM8718 supports PCM data

input word lengths from 16 to 32-bits and sampling rates up

to 192kHz. The WM8718 consists of a serial interface port,

digital interpolation filters, multi-bit sigma delta modulators

and differential stereo DAC in a small 20-lead SSOP

package or 24-lead QFN package. The WM8718 includes a

digitally controllable mute, an attenuate function and zero

flag output for each channel.

The 3-wire serial control port provides access to a wide

range of features including on-chip mute, attenuation and

phase reversal.

The WM8718 is an ideal device to interface to AC-3,

DTS, and MPEG audio decoders for surround sound

applications, or for use in DVD players including those

supporting DVD-A.

WM8718

24 Bit Differential Stereo DAC with Volume Control

FEATURES

•

24 bit Stereo DAC

Fully Differential Voltage Outputs

Audio Performance

111dB SNR (‘A’ weighted @ 48kHz) DAC

-100dB THD

DAC Sampling Frequency: 8kHz - 192kHz

3 Wire Serial Control Interface

Programmable Audio Data Interface Modes

S, Left, Right Justified, DSP

16/20/24/32 bit Word Lengths

Independent Digital Volume Control on Each Channel with

127.5dB Range in 0.5dB Steps

Independent Zero Flag Outputs

3.0V - 5.5V Supply Operation

20-lead SSOP Package or 24-lead QFN Package

•

APPLICATIONS

•

CD, DVD, and DVD-Audio Players

Home theatre systems

Professional mixing desks

BLOCK DIAGRAM

LATCH

SDIN

SCLK

WM8718

CONTROL

INTERFACE

ZEROFR

ZEROFL

BCKIN

LRCIN

DIN

AUDIO

INTERFACE

ATT/

MUTE

DIGITAL

FILTERS

ATT/

MUTE

SIGMA

DELTA

MODULATOR

VOUTRP

DAC

VOUTRN

VOUTLP

DAC

VOUTLN

SIGMA

DELTA

MODULATOR

VMID

MCLK

VREFP

WOLFSON MICROELECTRONICS plc

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Wolfson Microelectronics plc

VREFN

DGND

AGND

DVDD

AVDD

Production Data, August 2009, Rev 4.5

WM8718

TABLE OF CONTENTS

Production Data

DESCRIPTION ............................................................................................................ 1

FEATURES.................................................................................................................. 1

APPLICATIONS .......................................................................................................... 1

BLOCK DIAGRAM ...................................................................................................... 1

TABLE OF CONTENTS .............................................................................................. 2

PIN CONFIGURATION – 20 LEAD SSOP .................................................................. 3

ORDERING INFORMATION – 20 LEAD SSOP .......................................................... 3

PIN CONFIGURATION – 24 LEAD QFN..................................................................... 4

ORDERING INFORMATION – 24 LEAD QFN ............................................................ 4

PIN DESCRIPTION – 20 LEAD SSOP ........................................................................ 5

PIN DESCRIPTION – 24 LEAD QFN .......................................................................... 6

ABSOLUTE MAXIMUM RATINGS .............................................................................. 7

DC ELECTRICAL CHARACTERISTICS ..................................................................... 8

ELECTRICAL CHARACTERISTICS ........................................................................... 8

TERMINOLOGY ................................................................................................................. 9

MASTER CLOCK TIMING .................................................................................................10

DIGITAL AUDIO INTERFACE TIMINGS ...........................................................................10

3-WIRE SERIAL CONTROL INTERFACE TIMING ...........................................................11

INTERNAL POWER ON RESET CIRCUIT ............................................................... 12

DEVICE DESCRIPTION ............................................................................................ 14

INTRODUCTION ...............................................................................................................14

CLOCKING SCHEMES .....................................................................................................14

DIGITAL AUDIO INTERFACE ...........................................................................................14

AUDIO DATA SAMPLING RATES.....................................................................................16

REGISTER MAP ...............................................................................................................18

DIGITAL FILTER CHARACTERISTICS .................................................................... 24

DAC FILTER RESPONSES...............................................................................................24

DIGITAL DE-EMPHASIS CHARACTERISTICS ........................................................ 25

TYPICAL PERFORMANCE ....................................................................................... 26

APPLICATIONS INFORMATION .............................................................................. 27

RECOMMENDED EXTERNAL COMPONENTS – 20 LEAD SSOP ...................................27

RECOMMENDED EXTERNAL COMPONENTS – 24 LEAD QFN .....................................28

RECOMMENDED EXTERNAL COMPONENTS VALUES .................................................28

RECOMMENDED ANALOGUE LOW PASS FILTER FOR PCM DATA FORMAT

(OPTIONAL) ......................................................................................................................29

PACKAGE DIMENSIONS – 20 LEAD SSOP ............................................................ 30

PACKAGE DIMENSIONS – 24 LEAD QFN .............................................................. 31

IMPORTANT NOTICE ............................................................................................... 32

ADDRESS: ........................................................................................................................32

PD, Rev 4.5, August 2009

WM8718GEFL/RV Related Products

	WM8718GEFL/RV	WM8718GEFL/V
Description	Consumer Circuit, CMOS, PQCC24, 4 X 4 MM, 0.90 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, PLASTIC, MO-220VGGD, QFN-24	Consumer Circuit, CMOS, PQCC24, 4 X 4 MM, 0.90 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, PLASTIC, MO-220VGGD, QFN-24
Is it Rohs certified?	conform to	conform to
Maker	Cirrus Logic	Cirrus Logic
package instruction	HVQCCN,	HVQCCN,
Reach Compliance Code	compliant	compliant
Other features	IT ALSO REQUIRES 3V TO 5.5V DIGITAL SUPPLY	IT ALSO REQUIRES 3V TO 5.5V DIGITAL SUPPLY
Commercial integrated circuit types	CONSUMER CIRCUIT	CONSUMER CIRCUIT
JESD-30 code	S-PQCC-N24	S-PQCC-N24
length	4 mm	4 mm
Number of functions	1	1
Number of terminals	24	24
Maximum operating temperature	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	HVQCCN	HVQCCN
Package shape	SQUARE	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Maximum seat height	1 mm	1 mm
Maximum supply voltage (Vsup)	5.5 V	5.5 V
Minimum supply voltage (Vsup)	3 V	3 V
surface mount	YES	YES
technology	CMOS	CMOS
Temperature level	INDUSTRIAL	INDUSTRIAL
Terminal form	NO LEAD	NO LEAD
Terminal pitch	0.5 mm	0.5 mm
Terminal location	QUAD	QUAD
width	4 mm	4 mm

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