WM8959
Pre-Production
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.
DAC Output Path (Line Outputs 10kΩ / 50pF Load, Headphone Outputs 16Ω Load, Speaker Output 8Ω BTL Load)
E1
SNR (A-weighted)
THD
DAC to single-
ended line out,
0dBFS input,
AVDD = 3.3V
99
-86
-84
-100
45
dB
dB
dB
dB
dB
dB
dB
dB
THD+N
Crosstalk (L/R)
AVDD PSRR (217Hz)
SNR (A-weighted)
THD
DAC to single-
ended line out,
0dBFS input,
AVDD = 2.7V
97
-89
-87
THD+N
E2
SNR (A-weighted)
THD
DAC to
differential line
out, 0dBFS
input, AVDD =
3.3V
99
-86
-84
-100
60
dB
dB
dB
dB
dB
mV
dB
dB
dB
THD+N
Crosstalk (L/R)
AVDD PSRR (217Hz)
DC Offset at Load
SNR (A-weighted)
THD
5
DAC to
differential line
out, 0dBFS
input, AVDD =
2.7V
97
-90
-88
THD+N
E3
E4
E5
Minimum Line Out
Resistance
LOP, LON,
ROP, RON
2
kΩ
Maximum Line Out
Capacitance
LOP, LON,
ROP, RON
10
nF
SNR (A-weighted)
THD (PO=20mW)
THD+N (PO=20mW)
THD (PO=5mW)
DAC to LOUT or
ROUT, RL=32Ω,
AVDD=HPVDD=
3.3V
99
-81
-79
-77
-75
-100
45
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
32Ω AC-Coupled Headphone Outputs
THD+N (PO=5mW)
Crosstalk (L/R)
AVDD PSRR (217Hz)
HPVDD PSRR (217Hz)
SNR (A-weighted)
THD (PO=5mW)
85
DAC to LOUT or
ROUT, RL=32Ω,
AVDD=HPVDD=
2.7V
97
-76
-74
THD+N (PO=5mW)
E6
SNR (A-weighted)
THD (PO=20mW)
THD+N (PO=20mW)
THD (PO=5mW)
DAC to LOUT or
ROUT, RL=16Ω,
AVDD=HPVDD=
3.3V
90
99
-77
-75
-73
-71
-100
45
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
-72
-70
16Ω AC-Coupled Headphone Outputs
THD+N (PO=5mW)
Crosstalk (L/R)
+
DACL or
DACR
+
LOUT
or
LOMIX or
AVDD PSRR (217Hz)
HPVDD PSRR (217Hz)
SNR (A-weighted)
THD (PO=20mW)
THD+N (PO=20mW)
THD (PO=5mW)
ROMIX
ROUT
RLOAD
=
85
16Ohm
DAC to LOUT,
or ROUT,
RL=16Ω,
AVDD=HPVDD=
2.7V
97
-74
-72
-72
-70
THD+N (PO=5mW)
PP, May 2008, Rev 3.1
14
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
