WM8959 Wolfson Microelectronics Ltd., WM8959 Datasheet - Page 16

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

WM8959
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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.
Bypass Path Performance (Line Outputs 10kΩ / 50pF load, Headphone Outputs 16Ω load, Speaker Output 8Ω BTL load)
F1
F2
F3
SNR (A-weighted)
THD (P
THD+N (P
THD (P
THD+N (P
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
AVDD PSRR (217Hz)
HPVDD PSRR (217Hz)
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
AVDD PSRR (217Hz)
SPKVDD PSRR(217Hz)
SNR (A-weighted)
THD (P
THD+N (P
THD (P
THD+N (P
AVDD PSRR (217Hz)
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=
Differential Input
Differential Input
on RXP/RXN to
on RXP/RXN to
Class AB Mode
DCGAIN=1.52,
SPKVDD=5V,
Class D Mode
SPKVDD=5V,
RXVOICE via
RXVOICE via
OUT3/OUT4,
OUT3/OUT4,
AVDD=3.3V,
AVDD=3.3V,
Line Input to
Line Input to
Headphone
Headphone
Differential
Differential
Output on
Output on
ROMIX to
ROMIX to
ACGAIN=
LOMIX or
LOMIX or
SPKMIX,
SPKMIX,
Outputs,
Outputs,
3.3V
2.7V
3.3V
2.7V
A
= +25
o
C, 1kHz signal, fs = 48kHz,
91
PP, May 2008, Rev 3.1
101
110
108
100
-87
-85
-81
-79
-78
-76
-76
-74
-72
-70
-68
-66
-70
-68
-67
-65
-77
-75
-73
-71
-74
-72
-72
-70
93
80
90
45
85
98
45
80
45
80
5
5
Pre-Production
-70
-68
-66
-64
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
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
16