Production Data
WM8741
DIGITAL FILTER CHARACTERISTICS
PCM MODE FILTER CHARACTERISTICS
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Low Rate (32/44.1/48kHz) PCM Filter Response 1
0.000057dB
0.454fs
Passband
0.000057
dB
Passband Ripple
Stopband
0.546fs
-111.8
dB
dB
fs
Stopband Attenuation
Attenuation at fs/2
Group Delay
-6.02
43
Low Rate (32/44.1/48kHz) PCM Filter Response 2
0.000036 dB
0.408fs
Passband
0.000036
dB
Passband Ripple
Stopband
0.522fs
-111.1
dB
dB
fs
Stopband Attenuation
Attenuation at fs/2
Group Delay
Fs/2
-28.07
8
Low Rate (32/44.1/48kHz) PCM Filter Response 3
0.000058 dB
0.454fs
Passband
0.000058
dB
Passband Ripple
Stopband
0.546fs
-110.3
dB
dB
fs
Stopband Attenuation
Attenuation at fs/2
Group Delay
Fs/2
-6.43
7
Low Rate (32/44.1/48kHz) PCM Filter Response 4
0.000066 dB
0.417fs
Passband
0.000066
dB
Passband Ripple
Stopband
0.500fs
-110.4
dB
dB
fs
Stopband Attenuation
Attenuation at fs/2
Group Delay
Fs/2
-116.19
47
Low Rate (32/44.1/48kHz) PCM Filter Response 5
0.000041 dB
0.417fs
Passband
0.000041
dB
Passband Ripple
Stopband
0.500fs
-111.8
dB
dB
fs
Stopband Attenuation
Attenuation at fs/2
Group Delay
Fs/2
-112.45
8
Table 64 Low Rate PCM Filter Characteristics
PD, Rev 4.2, October 2009
49
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
