wm8400 Wolfson Microelectronics plc, wm8400 Datasheet - Page 15

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

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Pre-Production
Test Conditions
DCVDD = 1.8V, HBVDD = MBVDD = I2CVDD = I2S1VDD = I2S2VDD = AVDD = HPVDD = 3.0V, SPKVDD = 5V,
T
ADC Input Path Performance
SNR (A-weighted)
THD (-1dBFS input)
THD+N (-1dBFS input)
Crosstalk (L/R)
SNR (A-weighted)
THD (-1dBFS input)
THD+N (-1dBFS input)
SNR (A-weighted)
THD (-1dBFS input)
THD+N (-1dBFS input)
Crosstalk (L/R)
SNR (A-weighted)
THD (-1dBFS input)
THD+N (-1dBFS input)
SNR (A-weighted)
THD (-1dBFS input)
THD+N (-1dBFS input)
Crosstalk (L/R)
SNR (A-weighted)
THD (-1dBFS input)
THD+N (-1dBFS input)
SNR (A-weighted)
THD (-1dBFS input)
THD+N (-1dBFS input)
Crosstalk (L/R)
SNR (A-weighted)
THD (-1dBFS input)
THD+N (-1dBFS input)
SNR (A-weighted)
THD (-1dBFS input)
THD+N (-1dBFS input)
SNR (A-weighted)
THD (-1dBFS input)
THD+N (-1dBFS input)
A
= +25
PARAMETER
o
C, 1kHz signal, fs = 44.1kHz, PGA gain = 0dB, 24-bit audio data unless otherwise stated.
ADC via INMIXL
ADC via INMIXL
ADC via INMIXL
ADC via INMIXL
DIFFINR, AVDD
DIFFINR, AVDD
INMIXR), AVDD
INMIXR), AVDD
(DACs to ADCs
(DACs to ADCs
via INMIXL and
via INMIXL and
Input PGAs to
Input PGAs to
Input PGAs to
Input PGAs to
Line inputs to
AVDD = 3.0V
Line inputs to
AVDD = 2.7V
AVDD = 3.0V
AVDD = 2.7V
AVDD = 3.0V
AVDD = 2.7V
and INMIXR,
and INMIXR,
RXP-RXN to
one ADC via
RXP-RXN to
one ADC via
Record path
Record path
or INMIXR,
or INMIXR,
DIFFINL or
DIFFINL or
RXVOICE,
RXVOICE,
ADC via
ADC via
= 3.0V
= 2.7V
= 3.0V
= 2.7V
TEST CONDITIONS
MIN
TYP
-83
-81
-83
-78
-76
-83
-81
-67
-78
-76
-83
-81
-67
-78
-76
-83
-81
-70
-78
-76
-80
-78
-76
-74
94
92
92
92
93
92
94
92
92
90
PP, April 2009, Rev 3.0
MAX
WM8400
UNIT
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
15