WM8978_06 Wolfson Microelectronics Ltd., WM8978_06 Datasheet - Page 110

• Manufacturer Part Number: WM8978_06
• Description: Stereo Codec With Speaker Driver
• Manufacturer: Wolfson Microelectronics Ltd.

WM8978
DIGITAL FILTER CHARACTERISTICS
Table 71 Digital Filter Characteristics
TERMINOLOGY
1.
2.
w
Passband
Passband Ripple
Stopband
Stopband Attenuation
Group Delay
High Pass Filter Corner
Frequency
Passband
Passband Ripple
Stopband
Stopband Attenuation
Group Delay
ADC Filter
DAC Filter
ADC High Pass Filter
Stop Band Attenuation (dB) – the degree to which the frequency spectrum is attenuated (outside audio band)
Pass-band Ripple – any variation of the frequency response in the pass-band region
PARAMETER
TEST CONDITIONS
+/- 0.025dB
+/- 0.035dB
f > 0.546fs
f > 0.546fs
-0.5dB
-0.1dB
-6dB
-3dB
-6dB
0.546fs
0.546fs
MIN
-60
-55
0
0
0.5fs
21/fs
0.5fs
29/fs
10.4
21.6
TYP
3.7
+/- 0.025
+/-0.035
0.454fs
0.454fs
MAX
PP Rev 3.0 May 2006
UNIT
dB
dB
dB
dB
Hz
Pre-Production
110