WM8959 datasheet(18/155 Pages) WOLFSON

18 / 155 page

WM8959

Pre-Production

PP, May 2008, Rev 3.1

Test Conditions

DCVDD = 1.8V, DBVDD = 3.3V, AVDD = HPVDD = 3.3V, SPKVDD = 5V, TA = +25

oC, 1kHz signal, fs = 48kHz,

PGA gain = 0dB, 24-bit audio data unless otherwise stated.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Multi-Path Channel Separation

Headset Voice Call:

DAC/Headset to Tx Voice

Separation

1kHz 0dBFS DAC playback to

LOUT and ROUT; Quiescent input

on LIN12 or RIN12 (Gain=+12dB),

differential output to LOP/LON or

ROP/RON; Measure crosstalk at

LOP/LON or ROP/RON output

Headset Voice Call:

DAC/Speaker to Tx Voice

Separation

1kHz 0dBFS DAC playback to

speaker, 1W output; Quiescent

input on LIN12 or RIN12

(Gain=+12dB), differential output

to LOP/LON or ROP/RON;

Measure crosstalk at LOP/LON or

ROP/RON output

100

Ear Speaker Voice Call:

Tx Voice and Rx Voice Separation

1kHz Full scale differential input

on RXP/RXN, output to

OUT3/OUT4; Quiescent input on

LIN12 or RIN12 (Gain=+12dB),

differential output to LOP/LON or

ROP/RON; Measure crosstalk at

LOP/LON or ROP/RON output

Headset Voice Call:

Tx Voice and Rx Voice Separation

1kHz full scale differential input on

RXP/RXN via RXVOICE to LOMIX

and ROMIX, output to LOUT and

ROUT; Quiescent input on LIN12

or RIN12 (Gain=+12dB),

differential output to LOP/LON or

ROP/RON; Measure crosstalk at

LOP/LON or ROP/RON output

+12dB

LIN12 or RIN12

(Single-ended or

differential mode)

0dB

LOPMIX or

ROPMIX

0dB

LOAD

0dB

LOMIX

ROMIX

Full scale

input

Quiescent input

RXVOICE

LIN1 or

RIN1

LIN2 or

RIN2

RXN

RXP

LOUT

ROUT

LOP or

ROP

LON or

RON

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