WM8960
ELECTRICAL CHARACTERISTICS
Test Conditions
Production Data
DCVDD = 1.8V, DBVDD = 3.3V, AVDD = SPKVDD1 = SPKVDD2 = 3.3V, T
A
= +25 C, 1kHz signal, fs = 48kHz, PGA gain = 0dB,
24-bit audio data unless otherwise stated.
PARAMETER
Full-scale Input Signal Level –
note this changes in proportion
to AVDD
SYMBOL
V
INFS
TEST CONDITIONS
L/RINPUT1,2,3
Single-ended
L/RINPUT1,2,3
Differential MIC
Mic PGA equivalent input noise
Input resistance
(Note that input boost and
bypass path resistances will be
seen in parallel with PGA input
resistance when these paths are
enabled)
L/R
INPUT1
0 to 20kHz,
+30dB gain
+30dB PGA gain
Differential or single-
ended MIC configuration
L/R
INPUT1
0dB PGA gain
Differential or single-
ended MIC configuration
L/R
INPUT1
-17.25dB PGA gain
Differential or single-
ended MIC configuration
L/R
INPUT2,
L/R
INPUT3
L/R
INPUT2,
L/R
INPUT3
L/R
INPUT2,
L/R
INPUT3
L/R
INPUT2,
L/R
INPUT3
L/R
INPUT3
L/R
INPUT3
Input capacitance
MIC Programmable Gain Amplifier (PGA)
Programmable Gain Min
Programmable Gain Max
Programmable Gain Step Size
Mute Attenuation
Selectable Input Gain Boost
Gain Boost Steps
Input from PGA
Input from L/RINPUT2 or
L/RINPUT3
0, 13, 20,
29, MUTE
-12, -9, -6,
-3, 0, 3, 6,
MUTE
94
93
-86
0.005
-80
0.01
PD, October 2011, Rev 4.1
6
dB
%
dB
dB
dB
Guaranteed monotonic
LMIC2B = 0 and
RMIC2B = 0
-17.25
30
0.75
85
dB
dB
dB
dB
(Constant for all gains)
Differential MIC
configuration
Max boost gain
L/RINPUT2/3 to boost
0dB boost gain
L/RINPUT2/3 to boost
Min boost gain
L/RINPUT2/3 to boost
Max bypass gain
L/RINPUT3 to bypass
Min bypass gain
L/RINPUT3 to bypass
10
pF
70
k
17
k
37
k
13
k
7.5
k
85
k
87
k
49
k
3
k
MIN
TYP
1.0
0
0.5
-6
150
MAX
UNIT
Vrms
dBV
Vrms
dBV
uV
o
Analogue Inputs (LINPUT1, RINPUT1, LINPUT2, LINPUT3, RINPUT2, RINPUT3)
Analogue Inputs (LINPUT1/2 Differential, RINPUT1/2 Differential) to ADC out via MIC PGA
Signal to Noise Ratio
(A-weighted)
Total Harmonic Distortion Plus
Noise
THD+N
SNR
AVDD = 3.3V
AVDD = 2.7V
-3dBFs input,
AVDD = 3.3V
-3dBFs input,
AVDD = 2.7V
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
