CDB2011-1

CDB2011-1 Datasheet

Part	Datasheet
CDB2011-1	CDB2011-1 (pdf)

Related Parts	Information
WM9082ECSN/R	WM9082ECSN/R
CDKWM9082-S-1	CDKWM9082-S-1
CDBWM9082-M-1	CDBWM9082-M-1

PDF Datasheet Preview
WM9082 PDM Input Mono 3W Class D Speaker Driver The WM9082 is a high-performance sigma-delta Class D speaker driver. Audio input is supported using a stereo PDM interface clock and control-code detection circuitry supports all of the audio and control functions via a 2-wire interface. The digital audio interface provides excellent noise immunity, eliminating traditional input-filtering components. The flexible 2-wire interface minimises the PCB footprint and simplifies software development. The combined audio and control interface configuration is ideal for enabling the WM9082 to be located close to the speaker this reduces the length of the output connections, giving good EMC performance and removing the need for output filter components. The sigma-delta architecture provides good power efficiency and improved EMI performance with respect to traditional PWM Class D designs. A first-order high-pass filter can be selected on the input signal to remove DC offsets and help to prevent speaker damage. Other features include a low-power mute state, and output slew-rate control. Short-circuit and thermal protection is provided. The WM9082 is supplied in a 9-ball x 1.46mm CSP package, with 0.5mm ball pitch. • Sigma-Delta Class-D speaker driver - 92dB SNR - ‘A’ weighted - 2.5W into 5V supply, 1% THD - 1.3W into 3.6V supply, 1% THD - 1.25W into 5V supply, 1% THD - 650mW into 3.6V supply, 1% THD • Stereo PDM digital audio input • Supports 32kHz, 44.1kHz, 48kHz sample rates 128fs input • Automatic Left/Right channel selection • First-order high pass filter HPF • RF noise suppression • Pop and click suppression • Programmable output slew rates for low EMI • Short-circuit and thermal protection • 9-ball CSP package • Mobile Handsets • Portable Media Players PMP • Notebooks / Laptop computers • LCD televisions BLOCK DIAGRAM WOLFSON MICROELECTRONICS plc To receive regular email updates, sign up at WM9082 Production Data TABLE OF CONTENTS 1 FEATURES 1 BLOCK DIAGRAM 1 TABLE OF 2 PIN CONFIGURATION 3 ORDERING 3 PIN 3 ABSOLUTE MAXIMUM RATINGS 4 RECOMMENDED OPERATING 4 ELECTRICAL CHARACTERISTICS 5 TERMINOLOGY 6 TYPICAL PERFORMANCE 7 SIGNAL TIMING REQUIREMENTS 8 PDM AUDIO INTERFACE TIMING 8 DEVICE DESCRIPTION 9 INTRODUCTION 9 PDM AUDIO 9 DEVICE CONTROL 10 INITIAL POWER-UP 12 CONFIGURATION EVENTS 12 START-UP EVENTS 13 STANDBY EVENTS 14 SHUTDOWN EVENTS 14 STATE TRANSITION 15 SPEAKER DRIVER 16 RESETS AND SHUTDOWN 16 APPLICATIONS INFORMATION 17 RECOMMENDED EXTERNAL COMPONENTS 17 PCB LAYOUT CONSIDERATIONS 20 PACKAGE 21 PACKAGE DIAGRAM FOR DEVICES MARKED LT9 21 PACKAGE DIAGRAM FOR DEVICES MARKED JC5 22 IMPORTANT NOTICE 23 ADDRESS 23 Production Data WM9082 PIN CONFIGURATION The WM9082 is supplied in a 9-ball CSP format. The pin configuration is illustrated below, showing the top-down view from above the chip. ORDERING INFORMATION ORDER CODE TEMPERATURE RANGE PACKAGE WM9082ECSN/R Note Reel quantity = 5,000 -40C to +85C 9-ball CSP Pb-free, tape and reel MOISTURE SENSITIVITY LEVEL MSL1 PEAK SOLDERING TEMPERATURE 260oC PIN DESCRIPTION PIN NO A1 A2 A3 B1 B2 B3 C1 C2 C3 NAME SPKOUTP DNC GND SPKVDD SPKGND DVDD SPKOUTN IN2 IN1 TYPE Analogue Output Supply Analogue Output Digital Input Digital Input DESCRIPTION Positive BTL speaker output Do not connect Ground Class D output driver supply Ground Digital supply Negative BTL speaker output PDM input CLK or Left DATA input PDM input CLK or Right DATA input WM9082 Production Data ABSOLUTE MAXIMUM RATINGS Absolute Maximum Ratings are stress ratings only. Permanent damage to the device may be caused by continuously operating at or beyond these limits. Device functional operating limits and guaranteed performance specifications are given under Electrical Characteristics at the test conditions specified. ESD Sensitive Device. This device is manufactured on a CMOS process. It is therefore generically susceptible to damage from excessive static voltages. Proper ESD precautions must be taken during handling and storage of this device. Wolfson tests its package types according to IPC/JEDEC J-STD-020B for Moisture Sensitivity to determine acceptable storage conditions prior to surface mount assembly. These levels are: MSL1 = unlimited floor life at <30C / 85% Relative Humidity. Not normally stored in moisture barrier bag. MSL2 = out of bag storage for 1 year at <30C / 60% Relative Humidity. Supplied in moisture barrier bag. MSL3 = out of bag storage for 168 hours at <30C / 60% Relative Humidity. Supplied in moisture barrier bag. The Moisture Sensitivity Level for each package type is specified in Ordering Information. CONDITION Class D output driver supply voltage SPKVDD Digital supply voltage DVDD Voltage range digital inputs Operating temperature range, TA Storage temperature after soldering MIN -0.3V -0.3V GND - 0.3V -40ºC -65ºC MAX 7.0V 2.5V DVDD +0.3V +85ºC +150ºC RECOMMENDED OPERATING CONDITIONS PARAMETER Class D output driver supply SPKVDD Digital supply DVDD Ground SPKGND, GND Note: All digital and analogue grounds must always be within 0.3V of each other. UNIT V Production Data WM9082 ELECTRICAL CHARACTERISTICS Test Conditions SPKVDD = 3.6V, DVDD = 1.8V, SPKGND=GND = 0V, TA = +25oC, Load = 1kHz signal, CLK=6.144MHz 128fs , fs=48kHz unless otherwise stated. PARAMETER Speaker Driver Signal to Noise ratio Idle channel noise Total Harmonic Distortion + Noise Output Power THD+N = 1% SYMBOL SNR THD+N PO Speaker Load resistance see note 1 Speaker Load capacitance see note 1 PSRR SPKVDD PSRR Power efficiency Clocking IN1 or IN2 CLK input Digital Input IN1 or IN2 Input high level see note 1 Input low level see note 1 Input capacitance see note 1 Input leakage Other Parameters Pop-free start-up time Shutdown time TEST CONDITIONS A-weighted A-weighted PO = 625mW RL = SPKVDD = 3.6V RL = SPKVDD = 5.0V RL = SPKVDD = 3.6V RL = SPKVDD = 5.0V Direct connection to SPKOUTP+SPKOUTN 200mV peak-peak 217Hz Idle digital audio input while in the ON state RL = PO = 625mW, SPKVDD = 3.6V RL = PO = 625mW, SPKVDD = 3.6V fs = 48kHz fs = 44.1kHz fs = 32kHz ‘OFF’ state to ‘ON’ state see Figure 3 ‘ON’ state to ‘OFF’ state see Figure 3 MIN 3 x DVDD TYP 92 66 -70 70 82 86 x DVDD 10 UNIT dB W

PDF Datasheet Preview

WM9082

PDM Input Mono 3W Class D Speaker Driver

The WM9082 is a high-performance sigma-delta Class D speaker driver. Audio input is supported using a stereo PDM interface clock and control-code detection circuitry supports all of the audio and control functions via a 2-wire interface.

The digital audio interface provides excellent noise immunity, eliminating traditional input-filtering components. The flexible 2-wire interface minimises the PCB footprint and simplifies software development.

The combined audio and control interface configuration is ideal for enabling the WM9082 to be located close to the speaker this reduces the length of the output connections, giving good EMC performance and removing the need for output filter components.

The sigma-delta architecture provides good power efficiency and improved EMI performance with respect to traditional PWM Class D designs.

A first-order high-pass filter can be selected on the input signal to remove DC offsets and help to prevent speaker damage. Other features include a low-power mute state, and output slew-rate control.

Short-circuit and thermal protection is provided.

The WM9082 is supplied in a 9-ball x 1.46mm CSP package, with 0.5mm ball pitch.
• Sigma-Delta Class-D speaker driver - 92dB SNR - ‘A’ weighted - 2.5W into 5V supply, 1% THD - 1.3W into 3.6V supply, 1% THD - 1.25W into 5V supply, 1% THD - 650mW into 3.6V supply, 1% THD
• Stereo PDM digital audio input
• Supports 32kHz, 44.1kHz, 48kHz sample rates 128fs input
• Automatic Left/Right channel selection
• First-order high pass filter HPF
• RF noise suppression
• Pop and click suppression
• Programmable output slew rates for low EMI
• Short-circuit and thermal protection
• 9-ball CSP package
• Mobile Handsets
• Portable Media Players PMP
• Notebooks / Laptop computers
• LCD televisions

BLOCK DIAGRAM

WOLFSON MICROELECTRONICS plc To receive regular email updates, sign up at

WM9082

Production Data

TABLE OF CONTENTS
1 FEATURES 1 BLOCK DIAGRAM 1 TABLE OF 2 PIN CONFIGURATION 3 ORDERING 3 PIN 3 ABSOLUTE MAXIMUM RATINGS 4 RECOMMENDED OPERATING 4 ELECTRICAL CHARACTERISTICS 5

TERMINOLOGY 6

TYPICAL PERFORMANCE 7 SIGNAL TIMING REQUIREMENTS 8

PDM AUDIO INTERFACE TIMING 8

DEVICE DESCRIPTION 9

INTRODUCTION 9 PDM AUDIO 9 DEVICE CONTROL 10

INITIAL POWER-UP 12

CONFIGURATION EVENTS 12

START-UP EVENTS 13

STANDBY EVENTS 14

SHUTDOWN EVENTS 14

STATE TRANSITION 15

SPEAKER DRIVER 16 RESETS AND SHUTDOWN 16

APPLICATIONS INFORMATION 17

RECOMMENDED EXTERNAL COMPONENTS 17 PCB LAYOUT CONSIDERATIONS 20

PACKAGE 21

PACKAGE DIAGRAM FOR DEVICES MARKED LT9 21 PACKAGE DIAGRAM FOR DEVICES MARKED JC5 22

IMPORTANT NOTICE 23

ADDRESS 23

Production Data

WM9082

PIN CONFIGURATION

The WM9082 is supplied in a 9-ball CSP format. The pin configuration is illustrated below, showing the top-down view from above the chip.
ORDERING INFORMATION

ORDER CODE

TEMPERATURE RANGE

PACKAGE

WM9082ECSN/R

Note Reel quantity = 5,000
-40C to +85C
9-ball CSP Pb-free, tape and reel

MOISTURE SENSITIVITY LEVEL

MSL1

PEAK SOLDERING TEMPERATURE
260oC

PIN DESCRIPTION

PIN NO A1 A2 A3 B1 B2 B3 C1 C2 C3

NAME SPKOUTP DNC GND SPKVDD SPKGND DVDD SPKOUTN IN2 IN1

TYPE Analogue Output

Supply Analogue Output Digital Input Digital Input

DESCRIPTION Positive BTL speaker output Do not connect Ground Class D output driver supply Ground Digital supply Negative BTL speaker output PDM input CLK or Left DATA input PDM input CLK or Right DATA input

WM9082

Production Data

ABSOLUTE MAXIMUM RATINGS

Absolute Maximum Ratings are stress ratings only. Permanent damage to the device may be caused by continuously operating at or beyond these limits. Device functional operating limits and guaranteed performance specifications are given under Electrical Characteristics at the test conditions specified.

ESD Sensitive Device. This device is manufactured on a CMOS process. It is therefore generically susceptible to damage from excessive static voltages. Proper ESD precautions must be taken during handling and storage of this device.

Wolfson tests its package types according to IPC/JEDEC J-STD-020B for Moisture Sensitivity to determine acceptable storage conditions prior to surface mount assembly. These levels are:

MSL1 = unlimited floor life at <30C / 85% Relative Humidity. Not normally stored in moisture barrier bag. MSL2 = out of bag storage for 1 year at <30C / 60% Relative Humidity. Supplied in moisture barrier bag. MSL3 = out of bag storage for 168 hours at <30C / 60% Relative Humidity. Supplied in moisture barrier bag.
The Moisture Sensitivity Level for each package type is specified in Ordering Information.

CONDITION Class D output driver supply voltage SPKVDD Digital supply voltage DVDD Voltage range digital inputs Operating temperature range, TA Storage temperature after soldering

MIN -0.3V -0.3V GND - 0.3V -40ºC -65ºC

MAX 7.0V 2.5V DVDD +0.3V +85ºC +150ºC

RECOMMENDED OPERATING CONDITIONS

PARAMETER

Class D output driver supply

SPKVDD

Digital supply

DVDD

Ground

SPKGND, GND

Note:

All digital and analogue grounds must always be within 0.3V of each other.

UNIT V

Production Data

WM9082

ELECTRICAL CHARACTERISTICS

Test Conditions

SPKVDD = 3.6V, DVDD = 1.8V, SPKGND=GND = 0V, TA = +25oC, Load = 1kHz signal, CLK=6.144MHz 128fs , fs=48kHz unless otherwise stated.

PARAMETER Speaker Driver Signal to Noise ratio Idle channel noise Total Harmonic Distortion + Noise Output Power THD+N = 1%

SYMBOL SNR

THD+N PO

Speaker Load resistance see note 1 Speaker Load capacitance see note 1 PSRR SPKVDD

PSRR

Power efficiency

Clocking IN1 or IN2 CLK input

Digital Input IN1 or IN2 Input high level see note 1 Input low level see note 1 Input capacitance see note 1 Input leakage Other Parameters Pop-free start-up time

Shutdown time

TEST CONDITIONS

A-weighted A-weighted PO = 625mW RL = SPKVDD = 3.6V RL = SPKVDD = 5.0V RL = SPKVDD = 3.6V RL = SPKVDD = 5.0V

Direct connection to SPKOUTP+SPKOUTN
200mV peak-peak 217Hz Idle digital audio input while in the ON state RL = PO = 625mW, SPKVDD = 3.6V RL = PO = 625mW, SPKVDD = 3.6V
fs = 48kHz fs = 44.1kHz fs = 32kHz
‘OFF’ state to ‘ON’ state see Figure 3 ‘ON’ state to ‘OFF’ state see Figure 3

MIN 3
x DVDD

TYP 92 66 -70
70 82 86
x DVDD 10

UNIT dB W

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Datasheet ID: CDB2011-1 523288