WM8994 Datasheet, PDF (23/359 Pages) Wolfson Microelectronics plc – Multi-Channel Audio Hub CODEC for Smartphones

Production Data
WM8994
BYPASS PATH PERFORMANCE
Test Conditions
AVDD1=3.0V (powered from LDO1), DCVDD=1.0V (powered from LDO2), AVDD2=DBVDD=LDO2VDD=CPVDD=1.8V,
LDO1VDD=SPKVDD1=SPKVDD2=5V, DGND=AGND=CPGND=SPKGND1=SPKGND2=HP2GND=0V,
TA = +25^oC, 1kHz sinusoidal signal, fs = 48kHz, PGA gain = 0dB, 24-bit audio data unless otherwise stated.
PARAMETER
TEST CONDITIONS
F1 Input PGA to Differential Line Output (Load = 10k // 50pF)
SNR
A-weighted
THD
0dBV output
THD+N
0dBV output
MIN TYP MAX
100
-90
-87
UNIT
dB
dB
dB
F3 Input PGA to Headphone via MIXOUTL or MIXOUTR (Load = 16)
SNR
A-weighted
THD
THD+N
THD
THD+N
PSRR (all supplies)
P_O=20mW
PO=20mW
PO=5mW
PO=5mW
100mV (pk-pk)
217Hz
Channel Separation
(L/R)
F2 Line Input (IN2LP or IN2RP) to Headphone via MIXOUTL or MIXOUTR (Load = 16)
SNR
A-weighted
THD
P_O=20mW
THD+N
PO=20mW
THD
THD+N
PO=5mW
P_O=5mW
PSRR (all supplies)
100mV (pk-pk)
217Hz
F4 Line Input (IN2LN or IN2RN) to Headphone via MIXOUTL or MIXOUTR (Load = 16)
SNR
A-weighted
THD
THD+N
THD
THD+N
PSRR (all supplies)
P_O=20mW
P_O=20mW
PO=5mW
PO=5mW
100mV (pk-pk)
217Hz
Channel Separation
(L/R)
98
dB
-89
dB
-87
dB
-86
dB
-84
dB
49
dB
95
dB
100
dB
-86
dB
-84
dB
-84
dB
-82
dB
49
dB
100
dB
-84
dB
-82
dB
-82
dB
-80
dB
49
dB
95
dB
w
PD, April 2012, Rev 4.4
23