AKD4634-A Datasheet, PDF (25/46 Pages) Asahi Kasei Microsystems – 16bit mono CODEC with MIC/SPK/VIDEO amplifier.

[AKD4634-A]
(2) “LPF”, “HPF”, “HPFAD”, “EQ1”, “EQ2”, “EQ3”, “EQ4”, “EQ5” Please set ON/OFF of Filter with a check button.
When checked it, Filter becomes ON. When checked “Notch Filter Auto Correction”, perform automatic revision of
center frequency of a notch filter. (“Cf. 8-4. automatic revision of center frequency of a notch filter”)
Figure13. Filter ON/OFF setting button
8-2. A calculation of a register
A register set value is displayed when push a [Register Setting] button. When a value out of a setting range is set, error
message is displayed, and, a calculation of register setting is not carried out.
Figure14. A register setting calculation result
When it is as follows that a register set value is updated.
(1) When [Register Setting] button was pushed.
(2) When [Frequency Response] button was pushed.
(3) When [UpDate] button was pushed on a frequency characteristic indication window.
(4) When set ON/OFF of a check button “Notch Filter Auto Correction”
<KM088301>
- 25 -
2007/07