wm8400 Wolfson Microelectronics plc, wm8400 Datasheet - Page 17

• Manufacturer Part Number: wm8400
• Description: Wolfson Audioplustm Hi-fi Audio Codec And Power Management Unit For Mobile Multimedia
• Manufacturer: Wolfson Microelectronics plc

w
Pre-Production
Test Conditions
DCVDD = 1.8V, HBVDD = MBVDD = I2CVDD = I2S1VDD = I2S2VDD = AVDD = HPVDD = 3.0V, SPKVDD = 5V,
T
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
Minimum Headphone
Resistance
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
A
= +25
PARAMETER
O
O
O
O
O
O
O
=20mW)
=5mW)
=5mW)
=0.5W)
=0.9W)
=0.2W)
=0.45W)
o
C, 1kHz signal, fs = 44.1kHz, PGA gain = 0dB, 24-bit audio data unless otherwise stated.
O
O
O
O
O
O
O
=20mW)
=5mW)
=5mW)
=0.5W)
=0.9W)
=0.2W)
=0.45W)
AVDD=HPVDD=
AVDD=HPVDD=
ACGAIN=DCGA
DAC to Speaker
DAC to Speaker
controlled using
controlled using
LOUT/OUT3 or
LOUT/OUT3 or
Output (Direct)
Output (Direct)
LOUT, ROUT,
SPKVDD=5V,
SPKVDD=5V,
ROUT/OUT4,
ROUT/OUT4,
DAC volume,
OUT3, OUT4
AVDD=3.0V,
AVDD=3.0V,
class AB, P
DAC volume
class D, P
R
R
IN=1.67
DAC to
DAC to
L
L
3.0V
2.7V
=32Ω,
=32Ω,
O
O
TEST CONDITIONS
Fully Differential Headphone Outputs
MIN
15
-100
TYP
-77
-75
-79
-77
-78
-76
-76
-74
-76
-74
-81
-79
-70
-68
98
60
85
98
89
75
96
75
5
5
PP, April 2009, Rev 3.0
MAX
WM8400
UNIT
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
Ω
17