WM8960_06 Datasheet, PDF (7/88 Pages) Wolfson Microelectronics plc – Stereo CODEC with 1W Stereo Class D Speaker Drivers and Headphone Drivers for Portable Audio Applications

Preliminary Technical Data
WM8960
Test Conditions
DCVDD = 1.8V, DBVDD = 3.3V, AVDD = SPKVDD1 = SPKVDD2 = 3.3V, TA = +25^oC, 1kHz signal, fs = 48kHz, PGA gain =
0dB, 24-bit audio data unless otherwise stated.
PARAMETER
SYMBOL TEST CONDITIONS
MIN
TYP
Analogue Inputs (LINPUT2, RINPUT2, LINPUT3, RINPUT3) to ADC out
Signal to Noise Ratio
SNR
AVDD = 3.3V
94
(A-weighted)
AVDD = 2.7V
93
Total Harmonic Distortion Plus
Noise
THD+N
-3dBFs input,
AVDD = 3.3V
-86
0.005
-3dBFs input,
-80
AVDD = 2.7V
Total Harmonic Distortion
THD
-3dBFs input,
-89
AVDD = 3.3V
-3dBFs input,
TBD
AVDD = 2.7V
ADC Channel Separation
1kHz full scale signal into
90
ADC via L/RINPUT1, MIC
amp (single-ended) and
boost
1kHz full scale signal into
90
ADC via L/RINPUT1/2,
MIC amp (pseudo-
differential) and boost
1kHz full scale signal into
90
ADC via L/RINPUT2 and
boost
1kHz full scale signal into
90
ADC via L/RINPUT3 and
boost
Line Input / MIC Separation
Single-ended MIC input
90
(Quiescent input to ADC via
on L/RINPUT1
boost; Output on ADC;
1kHz on L/RINPUT3 to HP out
via bypass path)
Differential MIC input
using L/RINPUT2
90
Boost / Bypass Separation
1kHz on LINPUT2 to ADC
90
(Quiescent L/RINPUT3 to HP
via boost only
outputs via bypass)
1kHz on LINPUT1 to ADC
90
via single-ended MIC
PGA & boost
Channel Matching
1kHz signal
0.2
Headphone Outputs (HP_L, HP_R)
0dB Full scale output voltage
AVDD/3.3
Mute attenuation
1kHz, full scale signal
90
Channel Separation
L/RINPUT3 to headphone
85
outputs via bypass
DAC to Line-Out (HP_L, HP_R or OUT3 with 10kΩ / 50pF load)
Signal to Noise Ratio
SNR
AVDD=3.3V
99
(A-weighted)
AVDD=2.7V
98
Total Harmonic Distortion Plus
THD+N
AVDD=3.3V
-85
Noise
AVDD=2.7V
-90
Total Harmonic Distortion
THD
AVDD=3.3V
-87
AVDD=2.7V
-92
Channel Separation
1kHz full scale signal
110
MAX
UNIT
dB
dB
%
dB
%
dB
dB
dB
dB
dB
dB
dB
dB
dB
Vrms
dB
dB
dB
dB
dB
dB
w
PTD, September 2006, Rev 2.0
7