WM8959 Wolfson Microelectronics Ltd., WM8959 Datasheet - Page 15

• Manufacturer Part Number: WM8959
• Description: Mobile Multimedia DAC with Dual-mode Class AB/D Speaker Driver
• Manufacturer: Wolfson Microelectronics Ltd.

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Pre-Production
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.
E7
E8
E9
E10
E11
SNR (A-weighted)
THD (P
THD+N (P
THD (P
THD+N (P
Crosstalk (L/R)
AVDD PSRR (217Hz)
HPVDD PSRR (217Hz)
DC Offset at Load
SNR (A-weighted)
THD (P
THD+N (P
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
Minimum Headphone
Resistance
SPKVDD Leakage
Current
SNR (A-weighted)
THD (P
THD+N (P
THD (P
THD+N (P
SPKVDD PSRR(217Hz)
SNR (A-weighted)
THD (P
THD+N (P
THD (P
THD+N (P
SPKVDD PSRR(217Hz)
DC Offset at Load
O
O
O
O
O
O
O
O
O
O
O
O
=20mW)
=5mW)
=20mW)
=5mW)
=20mW)
=5mW)
=20mW)
=5mW)
=0.5W)
=1.0W)
=0.5W)
=1.0W)
O
O
O
O
O
O
O
O
O
O
O
O
=20mW)
=5mW)
=20mW)
=5mW)
=20mW)
=5mW)
=20mW)
=5mW)
=0.5W)
=1.0W)
=0.5W)
=1.0W)
AVDD=HPVDD=
AVDD=HPVDD=
AVDD=HPVDD=
AVDD=HPVDD=
DAC to LOUT or
ACGAIN=DCGA
DAC to Speaker
DAC to Speaker
GND), R
SPKVDD=5.0V,
controlled using
controlled using
Capless (OUT3
LOUT/OUT3 or
LOUT/OUT3 or
ROUT Capless
or 4 as pseudo
Output (Direct)
Output (Direct)
(OUT3 or 4 as
pseudo GND),
DAC to LOUT,
LOUT, ROUT,
SPKVDD=5V,
SPKVDD=5V,
ROUT/OUT4,
ROUT/OUT4,
DAC volume,
OUT3, OUT4
AVDD=3.3V,
AVDD=3.3V,
class AB, P
DAC volume
class D, P
R
R
R
or ROUT
IN=1.52
DAC to
DAC to
L
L
L
3.3V
2.7V
3.3V
2.7V
=16Ω,
=16Ω,
=16Ω,
L
=16Ω,
O
O
Fully Differential Headphone Outputs
16Ω Capless Headphone Outputs
A
= +25
o
C, 1kHz signal, fs = 48kHz,
15
PP, May 2008, Rev 3.1
-100
-71
-69
-67
-65
-70
-68
-66
-64
-73
-71
-69
-67
-45
-70
-68
-67
-65
-87
-85
-76
-74
-78
-76
-76
-74
99
60
85
98
99
45
85
97
93
75
97
75
5
1
5
-70
-68
-66
-64
WM8959
mV
mV
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
uA
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Ω
15