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WM8991 Datasheet(PDF) 19 Page - Wolfson Microelectronics plc

Part # WM8991
Description  Mobile Multimedia CODEC with Dual-Mode Class AB/D Speaker Driver
PDF  174 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8991 Datasheet(HTML) 19 Page - Wolfson Microelectronics plc

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Pre-Production
WM8991
w
PP, May 2008, Rev 3.1
19
Test Conditions
DCVDD = 1.8V, DBVDD = 3.3V, AVDD = HPVDD = 3.3V, SPKVDD = 5V, TA = +25
oC, 1kHz signal, fs = 48kHz,
PGA gain = 0dB, 24-bit audio data unless otherwise stated.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SNR (A-weighted)
90
101
dB
THD (0dB output)
-99
-90
dB
THD+N (0dB output)
-97
-88
dB
AVDD PSRR (217Hz)
45
dB
DC Offset at Load
Input PGA to
Differential Line
Out,
AVDD=3.3V
5
mV
SNR (A-weighted)
100
dB
THD (0dB output)
-95
dB
F4
THD+N (0dB output)
Input PGA to
Differential Line
Out,
AVDD=2.7V
-93
dB
SNR (A-weighted)
92
102
dB
THD (PO=20mW)
-77
-72
dB
THD+N (PO=20mW)
-75
-70
dB
THD (PO=5mW)
-73
dB
THD+N (PO=5mW)
-71
dB
AVDD PSRR (217Hz)
45
dB
HPVDD PSRR (217Hz)
85
dB
Crosstalk (L/R)
Input PGA via
LOMIX or
ROMIX to LOUT
or ROUT,
RL=16
Ω,
AVDD=HPVDD=
3.3V
-95
dB
SNR (A-weighted)
100
dB
THD (PO=20mW)
-74
dB
THD+N (PO=20mW)
-72
dB
THD (PO=5mW)
-72
dB
F5
THD+N (PO=5mW)
Input PGA via
LOMIX or
ROMIX to LOUT
or ROUT,
RL=16
Ω,
AVDD=HPVDD=
2.7V
-70
dB
SNR (A-weighted)
104
dB
THD (PO=20mW)
-77
dB
THD+N (PO=20mW)
-75
dB
THD (PO=5mW)
-73
dB
THD+N (PO=5mW)
-71
dB
AVDD PSRR (217Hz)
70
dB
HPVDD PSRR (217Hz)
85
dB
Crosstalk (L/R)
Line Input to
Headphones via
LOMIX and
ROMIX,
RL=16
Ω,
AVDD=HPVDD=
3.3V
-95
dB
SNR (A-weighted)
102
dB
THD (PO=20mW)
-74
dB
THD+N (PO=20mW)
-72
dB
THD (PO=5mW)
-72
dB
F6
THD+N (PO=5mW)
Line Input to
Headphones via
LOMIX and
ROMIX,
RL=16
Ω,
AVDD=HPVDD=
2.7V
-70
dB



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