WM8990ECS/RV Wolfson Microelectronics, WM8990ECS/RV Datasheet - Page 20

• Manufacturer Part Number: WM8990ECS/RV
• Description: Audio CODECs Stereo CODEC w.Class AB/D speaker driver
• Manufacturer: Wolfson Microelectronics

Specifications of WM8990ECS/RV

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8990
w
Test Conditions
DCVDD = 1.8V, DBVDD = 3.3V, AVDD = HPVDD = 3.3V, SPKVDD = 5V, T
PGA gain = 0dB, 24-bit audio data unless otherwise stated.
Multi-Path Channel Separation
G1
G2
G3
G4
G5
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
PCM Voice Call:
Rx Voice to Tx Voice Separation
fs=8kHz for ADC and DAC,
DAC_SB_FILT=1; -5dBFS
differential mono output from
DACs to OUT3/OUT4; Quiescent
input on input PGA (Gain=+12dB)
to ADC via INMIXL or INMIXR;
Measure crosstalk at ADC output
Speakerphone PCM Voice Call:
DAC/Speaker to ADC Separation
fs=8kHz for ADC and DAC,
DAC_SB_FILT=1; 0dBFS DAC
output to speaker (1W output);
ADC record from input PGA
(Gain=+30dB); Measure crosstalk
on ADC output
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
PARAMETER
TEST CONDITIONS
A
= +25
o
C, 1kHz signal, fs = 48kHz,
MIN
PD, March 2009, Rev 4.0
TYP
100
85
90
85
70
Production Data
MAX
UNIT
dB
dB
dB
dB
dB
20