AK4753 Datasheet, PDF (39/85 Pages) Asahi Kasei Microsystems – 2-in, 4-out CODEC with DSP Functions

[AK4753]
■ DSP Functions and Signal Path
The AK4753 has two DSP circuit blocks and one digital volume circuit (DATT). Each DSP block can be set
individually for HPF/LPF, Five Biquads EQ, Pre-Gain, Limiter, and Post-Gain.
DSP1 for L1, R1
DATT
HPF/
LPF
Five
Biquads
Pre
Gain
Limiter
Post
Gain
Any coefficient
DATT:
L/R7-0
ATS1-0
Any coefficient
HPF/LPF:
1FA 19-0
1FB 19-0
1FC 19-0
Any coefficient
EQ1-5:
1E_1-5A 19-0
1E_1-5B 19-0
1E_1-5C19-0
Any coefficient
Pre-Gain:
1PREG 1-0
Any coefficient
Any coefficient
Post-Gain:
1PSTG 1-0
DSP2 for L2, R2
HPF/
LPF
Five
Biquads
Pre
Gain
Limiter
Post
Gain
Any coefficient
HPF/LPF:
2FA 19-0
2FB 19-0
2FC 19-0
Any coefficient
EQ1-5:
2E_1-5A 19-0
2E_1-5B 19-0
2E_1-5C 19-0
Any coefficient
Pre-Gain:
2PREG 1-0
Any coefficient
Any coefficient
Post-Gain:
2PSTG 1-0
Figure 55. DSP Functions and Signal Path
Refer to the each description of the function for detail settings. Available effects of the DSP are shown in Table 28.
Those effects in each function block of the DSP1 and DSP2 are set together, “L1 and R1” or “L2 and R2”.
MS1311-E-00
- 39 -
2011/07