AK4373 Datasheet, PDF (48/98 Pages) Asahi Kasei Microsystems – Low Power Stereo DAC with HP/SPK-Amp

[Filter Coefficient Setting Example]
1) HPF block
Example: fs=44.1kHz, fc=100Hz
F1A[13:0] bits = 01 1111 1100 0110
F1B[13:0] bits = 10 0000 0111 0100
2) LPF block
Example: fs=44.1kHz, fc=10kHz
F2A[13:0] bits = 01 0001 0010 1100
F2B[13:0] bits = 00 0010 0101 0111
3) FIL3 block
Example: fs=44.1kHz, fc=4kHz, Gain=-6dB, F3AS bit = “1” (LPF)
F3A[13:0] bits = 00 0011 1010 0010
F3B[13:0] bits = 10 1110 1000 0000
4) EQ block
Example: fs=44.1kHz, fc₁=300Hz, fc₂=3000Hz, Gain=+8dB
Gain[dB]
+8dB
fc₁
fc₂
EQA[15:0] bits = 0000 1001 0110 1110
EQB[13:0] bits = 10 0001 0101 1001
EQC[15:0] bits = 1111 1001 1110 1111
Frequency
[AK4373]
MS0991-E-00
- 48 -
2008/09