Pre-Production
WM8959
ELECTRICAL CHARACTERISTICS
Test Conditions
DCVDD = 1.8V, DBVDD = 3.3V, AVDD = HPVDD = 3.3V, SPKVDD = 5V, TA = +25oC, 1kHz signal, fs = 48kHz,
PGA gain = 0dB, 24-bit audio data unless otherwise stated.
PARAMETER
TEST CONDITIONS
MIN
TYP MAX
UNIT
Analogue Input Pin Maximum Signal Levels (LIN1, LIN2, LIN3, LIN4, RIN1, RIN2, RIN3, RIN4)
A1
Maximum Full-Scale PGA
Input Signal Level
Single-ended PGA
input on LIN1, LIN3,
RIN1 or RIN3, output
to INMIXL or INMIXR
1.0
0
Vrms
dBV
Note 1: This changes in
proportion to AVDD
(AVDD/3.3).
Differential PGA input
on LIN1/LIN2,
1.0
0
Vrms
dBV
LIN3/LIN4, RIN1/RIN2
or RIN3/RIN4, output
to INMIXL or INMIXR
Note 2: When mixing input
PGA outputs and line
inputs the total signal
must not exceed 1Vrms
(0dBV).
Differential input to
two single-ended PGA
inputs on LIN1/LIN3
or RIN1/RIN3, output
to DIFFINL or
1.0
0
Vrms
dBV
Note 3: A 1.0Vrms
differential signal equates
to 0.5Vrms/-6dBV per
input.
DIFFINR
A2
Maximum Full-Scale Line
Input Signal Level
Line input on LIN2,
LIN4, RIN2 or RIN4 to
INMIXL or INMIXR
1.0
0
Vrms
dBV
Note 1: This changes in
proportion to AVDD
(AVDD/3.3).
Line input on LIN2 or
RIN2 to SPKMIX
1.0
0
Vrms
dBV
Note 2: When mixing line
inputs, input PGA outputs
and DAC outputs the total
signal must not exceed
1Vrms (0dBV).
Line input on LIN3 or
RIN3 to LOMIX or
ROMIX
1.0
0
Vrms
dBV
Note 3: A 1.0Vrms
differential signal equates
to 0.5Vrms/-6dBV per
input.
Differential mono line
input on RXP/RXN to
RXVOICE
1.0
0
Vrms
dBV
Differential mono line
input on RXP/RXN to
differential output on
OUT3/OUT4
1.0
0
Vrms
dBV
PP, May 2008, Rev 3.1
11
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
