ak4560a AKM Semiconductor, Inc., ak4560a Datasheet - Page 34

• Manufacturer Part Number: ak4560a
• Description: 16bit Codec With Alc And Mic/hp/spk-amps
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
n Headphone-Amps
Power supply voltage for Headphone-Amp is supplied from HVDD pin and centered around HVCM voltage. Load
resistance of headphone output is min.220 . (Refer to Figure 23).
Output level of Headphone-Amp is gained to +11.8dB internally, and THD+N is 1% at –3.4dBV(1.9Vpp) output level.
(Refer to Figure 22)
MS0028-E-00
FS - 12dB
FS
FS -12dB
Figure 22. LINEOUT and Headphone-Amp Level Diagram (@VA=2.8V,OPGA=-8dB,VOL1-0=+7.5dB)
- 17.5dBV
- 5.5dBV
DAC
-17.5dBV
+7.5dBV
+7.5dBV
LINEOUT(Low)
LINEOUT(High)
+7.5dB
- 10.0dBV
+2dBV
- 17.5dBV
- 34 -
- 10dBV
Analog Volume
- 8dB
OPGA = -8dB
-25.5dBV
- 5.5dBV
+11.8dB
+11.8dB
-25.5dBV
HP - Amp
+11.8dB
- 3.4dBV
+6.3dBV
-13.7dBV
THD+N=1%
-10dBV
- 13.7dBV
- 30dBV
ALC2
-20dBV
+10dBV
0dBV
[AK4560A]
2000/05