CDBWM9010-1

w WM9010 Low Power, Class G Stereo Headphone Driver DESCRIPTION FEATURES The WM9010 is a low power stereo headphone driver designed for mobile handset and portable media player (PMP) applications. Class G amplifier technology is used to achieve high power efficiency and low quiescent current. • • • • • • • • Stereo analogue inputs accept 1Vrms line level inputs; the Hi-Fi output drivers deliver up to 28mW into a 32Ω load. An integrated charge pump circuit generates split-rail voltage supplies to power the ground-referenced headphone driver. The WM9010 incorporates Wolfson Silent Switch™ technology to provide pop and click suppression whenever the WM9010 is enabled or disabled. The WM9010 is supplied in a 12-pin CSP package. ENA Hi-fi audio headphone drivers (104dB SNR - ‘A’ weighted) Stereo analogue audio inputs Ground-referenced, cap-less headphone outputs Integrated charge pump and oscillator circuits Low quiescent current RF noise suppression Pop and click suppression 12-pin CSP package (1.84 x 1.34 x 0.7mm) APPLICATIONS • • • • Mobile Handsets Portable Media Players (PMP) Notebooks / Laptop computers LCD televisions GND RF noise suppression VDD Pop and click suppression - INL HPOUTL + INR - INREF + Oscillator HPOUTR Charge Pump WM9010 WOLFSON MICROELECTRONICS plc To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews Production Data, February 2011, Rev 4.0 Copyright ©2011 Wolfson Microelectronics plc WM9010 Production Data TABLE OF CONTENTS DESCRIPTION ....................................................................................................... 1 FEATURES............................................................................................................. 1 APPLICATIONS ..................................................................................................... 1 TABLE OF CONTENTS ......................................................................................... 2 PIN CONFIGURATION ........................................................................................... 3 ORDERING INFORMATION .................................................................................. 3 PIN DESCRIPTION ................................................................................................ 3 ABSOLUTE MAXIMUM RATINGS ......................................................................... 4 RECOMMENDED OPERATING CONDITIONS ..................................................... 4 ELECTRICAL CHARACTERISTICS ...................................................................... 5 TERMINOLOGY ............................................................................................................. 6 DEVICE DESCRIPTION ......................................................................................... 7 INTRODUCTION............................................................................................................ 7 HEADPHONE DRIVER .................................................................................................. 7 CHARGE PUMP............................................................................................................. 8 APPLICATIONS INFORMATION ........................................................................... 9 RECOMMENDED EXTERNAL COMPONENTS............................................................. 9 PCB LAYOUT CONSIDERATIONS................................................................................ 9 PACKAGE DIMENSIONS .................................................................................... 10 IMPORTANT NOTICE .......................................................................................... 11 ADDRESS: ................................................................................................................... 11 REVISION HISTORY ............................................................................................ 12 w PD, February 2011, Rev 4.0 2 WM9010 Production Data PIN CONFIGURATION The WM9010 is supplied in a 12-pin CSP format. The pin configuration is illustrated below, showing the top-down view from above the chip. A 1 2 INL INR B C HPOUTL 3 4 GND ENA CPCA CPCB HPOUTR CPVOUTP CPVOUTN ORDERING INFORMATION ORDER CODE TEMPERATURE RANGE PACKAGE MOISTURE SENSITIVITY LEVEL PEAK SOLDERING TEMPERATURE -40°C to +85°C 12-pin CSP (Pb-free, tape and reel) MSL1 260oC WM9010ECSN/R Note: Reel quantity = 5000 PIN DESCRIPTION PIN NO NAME TYPE DESCRIPTION A1 INL Analogue Input Left channel analogue input A2 INR Analogue Input Right channel analogue input A3 VDD Supply Positive supply A4 GND Supply Ground B1 INREF Analogue Input Input reference for INL and INR B2 ENA Digital Input Device Enable / Mute control B3 CPCA Analogue Output Charge pump fly-back capacitor pin B4 CPCB Analogue Output Charge pump fly-back capacitor pin C1 HPOUTL Analogue Output Left headphone output C2 HPOUTR Analogue Output Right headphone output C3 CPVOUTP Analogue Output Charge pump positive supply decoupling pin C4 CPVOUTN Analogue Output Charge pump negative supply decoupling pin w PD, February 2011, Rev 4.0 3 WM9010 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