ak4560a AKM Semiconductor, Inc., ak4560a Datasheet - Page 21

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

ASAHI KASEI
Mode Control
MS0028-E-00
Addr
03H
DEM1-0: Select De-emphasis Frequency
MONO1-0: Select digital data to input to DAC
VOL1-0: LINEOUT Gain Setting
Mode Control
RESET
Register Name
R/W
The AK4560A includes the digital de-emphasis filter (tc = 50/15us) by IIR filter. The filter
corresponds to three sampling frequencies (32kHz, 44.1kHz and 48kHz). The de-emphasis filter
selected DEM0 and DEM1 registers are enabled for input audio data.
As signal level of LINEOUT is different by VA power supply voltage, a gain of LINEOUT is set
by VOL1-0 bits.
VOL1
Table 3. Select digital data to input to DAC
MONO1
D7
0
0
1
1
DEM1
Table 4. LINEOUT volume setting
0
0
1
1
0
0
1
1
Table 2. De-emphasis Frequencies
RD
D6
0
0
VOL0
MONO0
0
1
DEM0
0
1
0
1
0
1
0
1
- 21 -
VOL1
D5
1
+7.5dB
+6.9dB
Gain
LOUT
Lch
Lch
Rch
Rch
44.1kHz
VOL0
48kHz
32kHz
Mode
D4
OFF
0
VA Voltage
ROUT
Rch
Lch
Rch
Lch
2.8V
3.0V
MONO1 MONO0 DEM1
D3
0
RESET
RESET
R/W
RESET
D2
0
D1
0
[AK4560A]
DEM0
2000/05
D0
1