wm8961 Wolfson Microelectronics plc, wm8961 Datasheet - Page 102

• Manufacturer Part Number: wm8961
• Description: Ultra-low Power Stereo Codec With 1w Stereo Class D Speaker Drivers And Ground Referenced Headphone Drivers
• Manufacturer: Wolfson Microelectronics plc

DAC FILTER RESPONSES
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WM8961
Figure 44 DAC Filter Response 8k Sampling Rate
Figure 46 DAC Filter Response for 12k Sample Rate
This series of plots shows the filter response for the entire DAC channel for different signal rates. The
full path, has a nominal gain of 3.01dB (1V input, 1.414V output), this means that the highest nodes in
the 48kHz case are at 47.5dB (rather than below the 50dB specification).
Table 67 Recommended Filter Configurations for Supported Sample Rates
Sample Rate (kHz)
11.025
22.05
44.1
12
16
24
32
48
8
Sloping Stop-band
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
Figure 45 DAC Filter Response for 11.025k Sample Rate
Figure 47 DAC Filter Response for 16k Sample Rate
MCLK recommended rate for DAC only
playback (CODEC mode) (Hz)
2822400 (11289600)
3072000 (12288000)
2048000 (8192000)
3072000 (3072000)
2822400 (2822400)
3072000 (3072000)
2048000 (6144000)
2822400 (5644800)
3072000 (6144000)
PP, August 2009, Rev 3.1
Pre-Production
102