WM8994ECSSLASHR datasheet(26/363 Pages) CIRRUS

26 / 363 page

WM8994

Rev 4.6

Test Conditions

AVDD1=3.0V (powered from LDO1), DCVDD=1.0V (powered from LDO2), AVDD2=DBVDD=LDO2VDD=CPVDD=1.8V,

LDO1VDD=SPKVDD1=SPKVDD2=5V, DGND=AGND=CPGND=SPKGND1=SPKGND2=HP2GND=0V,

TA = +25

oC, 1kHz sinusoidal signal, fs = 48kHz, PGA gain = 0dB, 24-bit audio data unless otherwise stated.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Earpiece Speaker Voice Call:

Tx Voice and RXVOICE

Separation

1kHz Full scale differential input

on VRXP-VRXN, output to

HPOUT2P-HPOUT2N; Quiescent

input on IN1LN/P or IN1RN/P

(Gain=+12dB), differential line

output; Measure crosstalk at

differential line output

+12dB

IN1L or IN1R

(Single-ended or

differential mode)

0dB

32Ω

LOAD

Full scale input

Quiescent input

IN1LN or

IN1RN

IN1LP or

IN1RP

LINEOUT1N or

LINEOUT2N

LINEOUT1P or

LINEOUT2P

HPOUT2L

HPOUT2R

VRXN

VRXP

Direct Voice

Path

LINEOUT1NMIX or

LINEOUT2NMIX

LINEOUT1PMIX or

LINEOUT2PMIX

100

Headset Voice Call:

Tx Voice and RXVOICE

Separation

1kHz full scale differential input on

VRXP-VRXN via RXVOICE to

MIXOUTL and MIXOUTR, output

to HPOUT1L and HPOUT1R;

Quiescent input on IN1LN/P or

IN1RN/P (Gain=+12dB),

differential line output; Measure

crosstalk at differential line output

+12dB

IN1L or IN1R

(Single-ended or

differential mode)

0dB

MIXOUTL

MIXOUTR

Full scale

input

Quiescent input

RXVOICE

(MIXINL or

MIXINR)

IN1LN or

IN1RN

IN1LP or

IN1RP

VRXN

VRXP

HPOUT1L

HPOUT1R

LINEOUT1P or

LINEOUT2P

LINEOUT1N or

LINEOUT2N

LINEOUT1NMIX or

LINEOUT2NMIX

HPOUT1LVOL

HPOUT1RVOL

LINEOUT1PMIX or

LINEOUT2PMIX

Stereo Line Record and Playback:

DAC/Headset to ADC Separation

-5dBFS input to DACs, playback to

HPOUT1L and HPOUT1R; ADC

record from line input; Measure

crosstalk on ADC output

DACR

HPOUT1LVOL

0dB

DACL

HPOUT1RVOL

0dB

MIXINL or

MIXINR

ADCL or

ADCR

CROSSTALK

Quiescent

input

HPOUT1L

HPOUT1R

IN1LP or

IN1RP

WM8994ECS/R Datenblatt(PDF) 26 Page - Cirrus Logic

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