Pre-Production
WM8959
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.
F4
SNR (A-weighted)
THD (0dB output)
THD+N (0dB output)
AVDD PSRR (217Hz)
DC Offset at Load
SNR (A-weighted)
THD (0dB output)
THD+N (0dB output)
Input PGA to
Differential Line
Out,
90
101
-99
-97
45
dB
-90
-88
dB
dB
dB
mV
dB
dB
dB
AVDD=3.3V
5
Input PGA to
Differential Line
Out,
100
-95
-93
AVDD=2.7V
F5
SNR (A-weighted)
THD (PO=20mW)
THD+N (PO=20mW)
THD (PO=5mW)
Input PGA via
LOMIX or
ROMIX to LOUT
or ROUT,
92
102
-77
-75
-73
-71
45
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
-72
-70
RL=16Ω,
AVDD=HPVDD=
3.3V
THD+N (PO=5mW)
AVDD PSRR (217Hz)
HPVDD PSRR (217Hz)
Crosstalk (L/R)
85
-95
100
-74
-72
-72
-70
SNR (A-weighted)
THD (PO=20mW)
THD+N (PO=20mW)
THD (PO=5mW)
Input PGA via
LOMIX or
ROMIX to LOUT
or ROUT,
RL=16Ω,
AVDD=HPVDD=
2.7V
THD+N (PO=5mW)
F6
SNR (A-weighted)
THD (PO=20mW)
THD+N (PO=20mW)
THD (PO=5mW)
Line Input to
Headphones via
LOMIX and
ROMIX,
104
-77
-75
-73
-71
70
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
RL=16Ω,
AVDD=HPVDD=
3.3V
THD+N (PO=5mW)
AVDD PSRR (217Hz)
HPVDD PSRR (217Hz)
Crosstalk (L/R)
85
-95
102
-74
-72
-72
-70
SNR (A-weighted)
THD (PO=20mW)
THD+N (PO=20mW)
THD (PO=5mW)
Line Input to
Headphones via
LOMIX and
ROMIX,
RL=16Ω,
AVDD=HPVDD=
2.7V
THD+N (PO=5mW)
PP, May 2008, Rev 3.1
17
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
