ak4564 AKM Semiconductor, Inc., ak4564 Datasheet - Page 23

• Manufacturer Part Number: ak4564
• Description: 16bit Codec With Built-in Alc And Mic/hp/spk-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
[AK4564]
Headphone-Amps of the AK4564 has a possibility of oscillation depending on headphone characteristics. Therefore,
Headphone-amp oscillation prevention circuit may be needed. Headphone-Amps oscillation prevention circuit example is
shown in Figure 18.
HP-Amp
HPL, HPR
-
16
+
+
0.1
16
10
Headphone
Oscillation prevention circuit
Figure 18. Headphone-Amp oscillation prevention circuit example
* When Headphone-Amp and Speaker-Amp are powered-up at the same time, refer to the condition of
“Note 7”, “Note 8” and “Note 10”.
MS0140-E-01
2002/07
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