WM8959 Wolfson Microelectronics Ltd., WM8959 Datasheet - Page 14
WM8959
Manufacturer Part Number
WM8959
Description
Mobile Multimedia DAC with Dual-mode Class AB/D Speaker Driver
Manufacturer
Wolfson Microelectronics Ltd.
Datasheet
1.WM8959.pdf
(155 pages)
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WM8959
w
Test Conditions
DCVDD = 1.8V, DBVDD = 3.3V, AVDD = HPVDD = 3.3V, SPKVDD = 5V, T
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
E2
E3
E4
E5
E6
SNR (A-weighted)
THD
THD+N
Crosstalk (L/R)
AVDD PSRR (217Hz)
SNR (A-weighted)
THD
THD+N
SNR (A-weighted)
THD
THD+N
Crosstalk (L/R)
AVDD PSRR (217Hz)
DC Offset at Load
SNR (A-weighted)
THD
THD+N
Minimum Line Out
Resistance
Maximum Line Out
Capacitance
SNR (A-weighted)
THD (P
THD+N (P
THD (P
THD+N (P
Crosstalk (L/R)
AVDD PSRR (217Hz)
HPVDD PSRR (217Hz)
SNR (A-weighted)
THD (P
THD+N (P
SNR (A-weighted)
THD (P
THD+N (P
THD (P
THD+N (P
Crosstalk (L/R)
AVDD PSRR (217Hz)
HPVDD PSRR (217Hz)
SNR (A-weighted)
THD (P
THD+N (P
THD (P
THD+N (P
O
O
O
O
O
O
O
=20mW)
=5mW)
=5mW)
=20mW)
=5mW)
=20mW)
=5mW)
O
O
O
O
O
O
O
=20mW)
=5mW)
=5mW)
=20mW)
=5mW)
=20mW)
=5mW)
AVDD=HPVDD=
AVDD=HPVDD=
AVDD=HPVDD=
AVDD=HPVDD=
DAC to LOUT or
ROUT, R
DAC to LOUT or
ROUT, R
DAC to LOUT or
ROUT, R
ended line out,
ended line out,
DAC to single-
DAC to single-
differential line
input, AVDD =
differential line
input, AVDD =
DAC to LOUT,
AVDD = 3.3V
AVDD = 2.7V
0dBFS input,
0dBFS input,
out, 0dBFS
out, 0dBFS
ROP, RON
ROP, RON
LOP, LON,
LOP, LON,
or ROUT,
R
DAC to
DAC to
L
3.3V
2.7V
3.3V
2.7V
3.3V
2.7V
=16Ω,
L
L
L
=32Ω,
=32Ω,
=16Ω,
DACL or
DACR
32Ω AC-Coupled Headphone Outputs
16Ω AC-Coupled Headphone Outputs
LOMIX or
ROMIX
+
A
= +25
ROUT
LOUT
or
o
C, 1kHz signal, fs = 48kHz,
R
16Ohm
+
LOAD
=
90
2
PP, May 2008, Rev 3.1
-100
-100
-100
-100
-86
-84
-89
-87
-86
-84
-90
-88
-81
-79
-77
-75
-76
-74
-77
-75
-73
-71
-74
-72
-72
-70
99
45
97
99
60
97
99
45
85
97
99
45
85
97
5
Pre-Production
-72
-70
10
mV
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
kΩ
nF
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
14
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