WAN_0276

WM8962 to WM8962B Migration Document

WOLFSON MICROELECTRONICS plc

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July 2012, Rev 1.1

INTRODUCTION

The WM8962B is a new device succeeding the WM8962. The WM8962B is completely backwards

compatible and includes several functional improvements.

This document outlines differences between the WM8962 and WM8962B.

CHANGE LOG

The changes between the WM8962 and WM8962B are summarised in the table below.

FEATURE WM8962 WM8962B

1 Reported Device

Revision

011b 101b

2 Oscillator to MCLK path FLL or PLL must be used to get

MCLK from Oscillator.

MCLK can be provided by the

Oscillator via a clock divider,

without requiring an FLL or PLL

to be enabled.

3 Higher MICBIAS

Voltage Options

MICBIAS output voltage can be

0.84 x AVDD or 1.18 x AVDD.

MICBIAS output voltage can be

0.84 x AVDD, 1.18 x AVDD,

1.34 x AVDD or 1.63 x AVDD.

4 Stereo 2W Speaker

Output

Supports up to 1W/Ch or 2W in

mono output configuration.

Supports up to 2W/Ch output

power into 4ohm loads.

Table 1 Summary of Changes between WM8962 and WM8962B

WAN_0276 Customer Information

July 2012, Rev 1.1

Customer Information 2

HARDWARE MIGRATION

PACKAGE

There are no differences between package dimensions of the WM8962 and WM8962B.

PACKAGE PITCH DIMENSIONS

49-ball W-CSP 0.5mm 3.594 x 3.984 x 0.7mm

Table 2 WM8962/WM8962B Package Details

BALL-OUT

There are no differences between ball-out on the WM8962 and WM8962B.

165432

DCVDD

SPKGND2

SPKOUTLP

BCLK

DACDAT

SCLK

GPIO5

CPVDD

CPCA

VMIDCIN1L

MICBIASSPKVDD1 CPVOUTPHPOUTR

SPKOUTLN HPOUTLHPOUTFB

SPKOUTRNSPKVDD2

IN4LSDA

LRCLK IN2LIN1R AVDD

IN3R

CLKOUT2/

GPIO2

CIFMODE

CS/GPIO6

IN3L

CLKOUT3/

GPIO3

DGND

IN2R

ADCDAT

CLKOUT5PLLVDDDBVDD

CPCB

CPVOUTN

CPGND

AGND

IN4R

XTO

MCLK/XTI

Figure 1 WM8962/WM8962B Ball-Out