WM8959 Wolfson Microelectronics Ltd., WM8959 Datasheet - Page 18

• Manufacturer Part Number: WM8959
• Description: Mobile Multimedia DAC with Dual-mode Class AB/D Speaker Driver
• Manufacturer: Wolfson Microelectronics Ltd.

WM8959
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
G5
G6
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
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
PARAMETER
LIN1 or
LIN2 or
RIN1
RIN2
RXN
RXP
Full scale
input
Quiescent input
-
+
+12dB
+
-
differential mode)
(Single-ended or
RXVOICE
LIN12 or RIN12
TEST CONDITIONS
LOPMIX or
ROPMIX
A
LOMIX
ROMIX
= +25
+
+
0dB
0dB
0dB
0dB
o
C, 1kHz signal, fs = 48kHz,
LON or
LOP or
RON
ROP
LOUT
ROUT
LOAD
MIN
PP, May 2008, Rev 3.1
TYP
100
85
70
75
Pre-Production
MAX
UNIT
dB
dB
dB
dB
18